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rev. 0.3 6/12 copyright ? 2012 by silicon laboratories si477x-evb si477x-evb si477 x e valuation b oard u ser ? s g uide description the si477x evb is a platfo rm designed to simplify evaluation and development with the silicon laboratories si477x series tuners. the platform includes both hardware and software tools to easily configure and operate the tuner. this guide contains th e following information: ? quick start guide: three quick steps to set up your board and tune a station ? kit contents: components included in the kit ? software/gui guide: installation and usage of the evaluation gui ? hardware guide: description, configuration, and design files for baseboard and daughtercards features ? complete antenna-to-audio evaluation system ? intuitive software inte rface supports simple evaluation to detailed performance testing ? flexible hardware interface for evaluation and prototyping of various rf front end circuit options ? portable operation facilit ates field measurements with only a pc functional block diagram micro- controller usb si477x tuner daughter card analog audio headphone buffered l / r / mpx direct out pc gui power supplies test points
si477x-evb 2 rev. 0.3 1. introduction thank you for purchasing the silicon laboratories si477x eval uation kit. this kit incl udes hardware and software tools to facilitate evaluation and develo pment with the si477x am/fm tuner family. figure 1. si477x evaluation board register at www.silabs.com for additional application notes, articles, and other support resources.
si477x-evb rev. 0.3 3 2. kit contents 2.1. si477x-evb evaluation board all material and information contained in the enclosure is confidential and covered under non-disclosure agreement (nda). ?? quark baseboard (1) ?? si477x rev 2.0 and later daughtercard (1) ?? usb cable (1) ?? bnc to rca adapters (2) ?? rca cable (1) ?? loop antenna (1) ?? bnc to sma adapter (1) ?? headphones (1) ?? 9 v universal adapter (1) ?? documentation and software cd including the following: ?? si477x-evb user's guide ?? development gui software and example code ?? microsoft.net framework for use with the development gui ?? an645: si477x programming guide ?? si477x release notes 2.2. si4770modul e-a-evb module kit separately from the si477 x-evb kit, user's may also order an si 4770module-a-evb kit. all material and information contained in the enclosure is confidential and covered under non-disclosure agreement (nda). ?? 4-layer si4770 module rev1.0 ?? si477x interposer rev1.0 card
si477x-evb 4 rev. 0.3 3. quick-start guide this section gives three quick steps to get your evaluati on kit installed and running. refer to the following sections for additional details on configuring and using the kit. 3.1. install the software ?? insert the cd. ?? open the file start_here.htm . ?? click on the link to the gui. ?? run setup.exe . 3.2. connect the board ?? configure the pcb for usb as the power source: ?? slide switch to "usb". ?? place four jumpers between "ldo" and "tnr" positions. figure 2. selecting usb power source ?? connect headphones or powered speakers to the headphone_out jack. figure 3. audio output connection
si477x-evb rev. 0.3 5 ?? connect an am loop antenna or fm whip antenna to the tuner daughtercard using the appropriate connection. for conducted tests, a signal source may be connected to am or fm using the appropriate sma connectors. figure 4. antenna connections
si477x-evb 6 rev. 0.3 3.3. listen ?? launch the gui from the desktop shortcut: ?? select fm receive mode, click initialize : figure 5. initialization window ?? tune a station by entering the frequency or dragging the tuning slider. ?? decrease the volume by dragging the volume slider. figure 6. fm receiver window
si477x-evb rev. 0.3 7 4. software the si477x evaluation kit includes a graphical user interf ace (gui) to simplify tuner ev aluation and configuration. this utility is useful both for demons trations and for fine-tun ing the various tuner prop erties and modes before coding firmware in the target system. the gui is designed for windows xp and later. 4.1. installation the software installation has two components: the gui and the microsoft.net framework. the board communicates via a usb hid interface, so no additional hardware drivers are needed. install the software components by the following steps: 1. locate the installation software: a. open a window to the installation cd. b. open the software folder. 2. install the software: a. start setup.exe . b. follow the on-screen prompts. notes: ?? you may receive an error stating: "this setup requires the .net framework version 4.0." if so, install the .net version provided on the cd (dotnetfx.exe). ?? important, release-specific notes may be included in the readme.doc file. please review this before finalizing the installation. ?? register at the broadcast audio cu stomer support page at www.silabs .com. all supporting documentation including data sheets, application notes, example code, and important layout guidelines are available only through the support site. silicon lab s periodically updates versions of the content abov e and posts them there. all materials are covered under nda.
si477x-evb 8 rev. 0.3 4.2. initialization the silicon labs gui will commutate with th e evaluation board(s) and tuner(s) to identify which are in use. the applicable part numbers will be displayed under ?device info? during initia lization and on the fr ont panel while the radio is in operation. only the availa ble application modes and tuners will be displayed by the gui when initializing the tuner. note that this user?s guide may show figur es with application modes and features that may not be available depending upon the tuner part number or daughter card in use. figure 7. initialization window 1. start the software by either using the desktop shortcut or from: start ? programs ? silicon laboratories, inc ? silicon labs audio gui 2. configure initialization options as shown in figure 7. ?initialization window?. a number of powerup options are available: a. evb application: select one of the following evb application modes: ?? single tuner ?? rds/vics b. initial boot mode: selects whether the receiver will first start in fm receive mode, am receive mode, etc. c. clock configuration: this section displays info rmation on the crystal osc illator clock frequency and crystal loading cap capacitance. the clock frequen cy can not be modified in conjunction with a quark baseboard. d. output mode: configures tuner and evb for either analog or mpx output through the headphone_out and l/r line_out jacks. use the headphon e_out jack for listening through headphones or powered speakers. use the l/r li ne_out jack for low-distortion measurements. other output modes are not supported by the quark baseboard. e. xtal loading cap: indicates the crystal frequency trim ca pacitance. this is retrieved from an eeprom on the daughtercard. additional options are available in the firmware co nfiguration window, shown in figure 9. ?firmware configuration window?.
si477x-evb rev. 0.3 9 f. firmware selection: the firmware for the tuner (or tuners in multi-tuner configurations) may be selected by selecting the appropriate tuner t ab as shown in figure 9. ?firmware configuration window?. in particular, i. select either the firmware imag e in the chip's nvram by selecting from device or ii. select a firmware imag e from a list of options. g. part number and i 2 c address for the selected device. these are read back/configured automatically from the tuner or id eeprom on the daughtercard. h. default mode : ui default mode allows the selection of the ui configurat ion as a default for the part number, last used ui state, or you can select a configuration previously saved (see figure 8). for saving a ui configurat ion, see section 5.1. figure 8. default mode selection
si477x-evb 10 rev. 0.3 note: if window displays "no boards found", check usb connections and power supply configuration. figure 9. firmware configuration window
si477x-evb rev. 0.3 11 5. saving, retrieving, and de leting the configuration state this gui feature allows the user to save, retrieve and delete the configuration state which contains the property values. 5.1. saving the current configuration state this feature allows the user to save the current co nfiguration state which cont ains the property values. 1. go to file ? ? state management ? ? save current state as shown in figure 10. figure 10. saving configuration state 2. click on save current state and the select configuration window show n in figure 11 will pop up. enter the name of the configuration state and click ok. the curr ent state called my configuration which contains the property values is now saved. figure 11. naming a configuration state during save
si477x-evb 12 rev. 0.3 5.2. retrieving the configuration state this feature allows the user to retrieve the configuration state. 1. go to file ? ? initialize ? ? t uner 1 tab as shown in figure 12. the di fferent states which were saved before are available in the default mode for user selection. figure 12. saved configuration state 2. in figure 13 below configuration state my configurat ion is selected. once the se lection is made, click on initialize and the part will boot wit h the property values stored in the my configuration state. figure 13. power up from saved configuration state
si477x-evb rev. 0.3 13 5.3. deleting the configuration state this feature allows the user to delete the configuration state. 1. go to file state management ? ? delete state as shown in figure 14. figure 14. delete configuration state 2. click on delete state and the delete configuration win dow shown in figure 15 will pop up. select the configuration state you want to delete and click ok. figure 15. selecting configuration state to delete in addition to saving, retrieving an d deleting the configuration state the gu i also gives the e nd user the ability to export the contents of the configuration state into a file, th e contents of which can be viewed using a text editor and which can be imported to different machines to allow mult iple users to test the tuner with the same configuration state.
si477x-evb 14 rev. 0.3 5.4. exporting saved state this feature allows the user to export the co ntents of the configurat ion state into a file. 1. go to file ? ? state management ? export saved state to export the saved state into a file as shown in figure 16. figure 16. exporting saved state 2. click on export saved state and the select configuratio n to export window will pop up as shown in figure 17. figure 17. selecting configuration state to export 3. select the configuration state to export and click ok to save the configuration file with a .ini extension. this configuration file can now be opened in a text editor and saved to different machines. the contents of the configuration file will be di splayed in a format as shown in figure 18 below.
si477x-evb rev. 0.3 15 figure 18. saved configuration file
si477x-evb 16 rev. 0.3 5.5. import state file this feature allows the user to import the configuration state file which has been saved using export current state and hence use the same configuration state file on different machines. 1. go to file ? ? state management ? ? import state file to export the saved state into a file as shown in figure 19. figure 19. import configuration state 2. select the file to import. 3. once the state file is imported it will show up in the default mode of the initialization window. in figure 20 below the test.ini file was imported using import stat e file and once that was done it shows up in the default mode in the initialization window. figure 20. selecting imported state file
si477x-evb rev. 0.3 17 5.6. am receive mode initialize the receiver as described in section ?4.2. initializat ion?, selecting am mode. the tuner panel will appear as shown in figure 21. ?am tuner window?. figure 21. am tuner window 1/2. frequency numerical window/slider: use to set the receiver frequency. this also acts as an indicator for receive frequencies selected by seek or preset fe atures. note that frequency resolution is set by the band and spacing properties of the tuner via the properties window. 3. tuning increment/decrement: adjusts receiver frequency in increments set by the spacing property. 4. seek: executes tuner seek command as configur ed by the applicable seek/tune properties. 5. auto scan: executes sequential tuner seek commands to cover the entire band. valid stations are denoted benea th the tuner by red tick marks. clicking the to presets button automatically populates the presets with the strongest twelve stations found. 6. presets: each preset button stores frequencies for convenient recall. frequencies may be either automatically programmed using the auto scan as descr ibed above or may be manually set by selecting a frequency and holding the desired button until the frequency is memorized. 7. volume/mute: sets the audio l/r output volume. the mute button engages the audio_mute property for both channels. note: volume must be set to maximum (63) for all performance tests.
si477x-evb 18 rev. 0.3 8. status indicators: these indicators show the various metrics reported back to the user via either the am_rsq_status or am_acf_status api commands. commonly used metrics include the following: rssi: the received signal strength indi cator at the ic input. note that this will vary from the actual antenna rssi due to front end gains or losses. snr : the signal to noise ratio at the demodulator input. no te that this is not the snr of the audio output. lassi: adjacent signal strength indicator. indicates (signal + noise) at the low-side adjacent frequency in db relative to the wanted carrier. hassi: adjacent signal strength indicator. indicates (signal + noise) at the high-side adjacent frequency in db relative to the wanted carrier. freq off: frequency offset of received signal. chan bw: receiver channel bandwidth. hicut: hicut corner frequency. soft mute: indicates the attenuation applied. 9. status indicator undock: opens a separate window with status indicators, as shown in figure 22. ?am status indicator window?. figure 22. am status indicator window 10. band selector: chooses which am/sw/lw band to use for frequency tuning/seeking notes: ?? many of these mitigation engines and indi cators are configured via properties. ?? refer to the programming guide for specific detail, including configuration, applicable ranges, etc. ?? the usb power supply is provided for convenience only. better perf ormance will be at tained using the external 9 v supply option.
si477x-evb rev. 0.3 19 5.7. fm receive mode initialize the receiver as described in section ?4.2. initialization?, select ing fm mode. the tuner panel will appear as shown in figure 23. ?fm tuner window?. figure 23. fm tuner window 1/2. frequency numerical window/slider: use to set the receiver frequency. this also acts as an indicator for receive frequencies selected by seek or preset fe atures. note that frequency resolution is set by the band and spacing properties of the tuner via the properties window. 3. tuning increment/decrement: adjusts receiver frequency in increments set by the spacing property. 4. seek: executes tuner seek command as configur ed by the applicable seek/tune properties. 5. auto scan: executes sequential tuner seek commands to cover the entire band. valid stations are denoted benea th the tuner by red tick marks. clicking the to presets button automatically populates the presets with the strongest twelve stations found. 6. presets: each preset button stores frequencies for convenient recall. frequencies may be either automatically programmed using the auto scan as descr ibed above or may be manually set by selecting a frequency and holding the desired button until the frequency is memorized. 7. volume/mute: sets the audio l/r output volume. the mute button engages the audio_mute property for both channels. note: volume must be set to maximum (63) for all performance tests. 8. status indicators: these indicators show the various metrics reported back to the user via either the fm_rsq_status, fm_agc_status or fm_acf_status api commands. commonly used metrics include: rssi: the received signal strength indica tor at the ic input. note that this will vary from the actual antenna rssi due to front end gains or losses. snr : the signal to noise ratio at the demodulator input. note that this is not the snr of the audio output. lassi : low side adjacent (100 khz) channe l strength indicator reports the (signal + noise) power relative to the carrier. hassi : high side adjacent (100 khz) channel strength indica tor reports the (signal + no ise) power relative to the carrier. assi200 : the 200 khz offset alternate signal strength indica tor. indicates (signal + noise) at the 200 khz offset alternate channel in db relative to the want ed carrier. returns the maximum of high and low side alternate channels.
si477x-evb 20 rev. 0.3 usn : the ultrasonic noise indicator. higher numbers indicate better signal quality. multipath: multipath indicator. higher numbers indi cate more severe mu ltipath impairment. freq off: frequency offset of received signal. deviation : fm deviation indicator channel bw: receiver channel (if) bandwidth. stereo: indicates the stereo/mono blend ratio. hi-cut/hi-blend: hicut mitigation applied to either the left plus right (lpr) or left minus right (lmr) audio signals. soft mute: indicates the soft mute attenuation applied. fmagc1, fmagc2, pga gain : agc indicators for fm agc. 9. status indicator undock . opens a separate window with all status indicators for more convenient viewing as shown in figure 24. ?fm status indicator window?. figure 24. fm status indicator window 10. stereo/mono selector. force the receiver to mono mode by selecting this button. the tuner will automatically blend between stereo and mono mode when stereo is selected. 11. rds program service and radio text indicators. displays received rds strings. notes: ?? many of these mitigation engines and indi cators are configured via properties. ?? refer to the programming guide for specific details , including configuration, applicable ranges, etc. ?? the usb power supply is provided for convenience only. better perf ormance will be at tained using the external 9 v supply option.
si477x-evb rev. 0.3 21 5.8. configuring tuner properties as described in the programming guide, various tuner aspects are configured through either a command/response or get/set property api interface. the gui cont ains a window to help manage properties under window ? properties as shown in figure 25. ?properties window?. figure 25. properties window properties are grouped by category. properties specific to the si477x device are prefixed with either fm or am. fm rds settings, fm ui settings, and am ui settings are cate gories that are used to control ui behavior but do not modify the property settings on the si477x device. to see all properties associated with the si477x device, choose fm: all or am: all: all, depending on what mode the device is powered up into. most properties included in the api are also included in the properties window. clicking on a particular property opens a brief description of the property and its arguments. refer to the programming guide for detailed information on the properties and values. property addresses and values can be displayed or hidden using the display/hide details button. when displayed, all of the current properties can be vi ewed or exported to a file (using the export properties button) and the last property changed is displayed. by c licking the export properties button sh own in figure 25, the properties can be exported to a .csv file.
si477x-evb 22 rev. 0.3 5.9. register read/write the software's graphical user interface and property windows provide an easy, intuitive method of configuring the device. in development, however, it is often useful to hav e low-level bytewise read/write interface to the tuner. the gui provides this interface under window ? register map . figure 26. ?register map window? shows an example read /write operation. the fm_rsq_status request is sent with an argument of 0x00. the reply returned in the response fields. refer to the programming guide for detailed informati on on the register definitions and their arguments and responses. figure 26. register map window
si477x-evb rev. 0.3 23 5.10. other useful tools 5.10.1. rssi/snr graphing utility the graphing utility window ? rssi/snr graph provides a scan of user selectable metrics versus frequency. graphing options include rssi, snr, low adjacent ch annel strength (lassi), and high adjacent channel strength (hassi). these me trics can be individually sele cted for display. a line or bar graph style can be chosen and markers indicating valid stations and their frequencies can be displayed. once the preferred graphing and displays have been selected, click the ?draw? button. figure 27 shows an example scan in the fm band. statio ns above the red line meet the rssi threshold for valid stations. the snr page shows a complementary scan of snr values across the band as well as the snr threshold for valid stations. figure 27. rssi/snr graphing utility
si477x-evb 24 rev. 0.3 5.10.2. blend/hicut/soft mute configuration helper the mitigation engines such as fm stereo/mono blend, hi -cut, hi-blend, and soft mute have configurable low- and high-end thresholds. these thresholds may be configured numerically through the properties page or graphically through the configuration helper. figure 28 shows an example of the configuration helper set to display fm stereo/mono blend based on rssi. this example also provides the ability to se t the fast and slow metric s on the same screen. if a configuration setting does not have fast and slow metrics available, only one graph and column of configur able values will appear. on both graphs the green line depicts the blend (in percent stereo). the green point shows the current operating point of the receiver (30 dbuv rssi which results in 18% stereo given the property settings). the cyan line reflects the actual reported stereo value (14%) from the si477x device which is mitigated by all the metrics (rssi/multipath/ usn) in this example. since the cyan line is tracking the green point or rssi mitigated blend, the device is limiting stereo based on rssi in this example. when selecting a mitigation control item, the description text is updated automatically. the name of the property being changed is displayed in bold. the property can th en be found in the property window by finding the property with the same name being displayed in the configuration helper. changes made to this page are applied to the tuner immediatel y, making it a useful tool in real-time configuration of the mitigation engines. figure 28. configuration helper
si477x-evb rev. 0.3 25 5.10.3. rds receive data the si477x ui features tools help in capturing and analyzing rds performance. the first is the rds receive data window (under menu window ? rds receive data ). this shows various rds metrics such as the decoded rds fields , group counters, and performance stat istics. this is shown in figure 29. figure 29. rds receive data window the second is a graphical display of the rds group counter information, shown in figure 30. this window is available under menu window ?? rds group counters . figure 30. rds group counter window
si477x-evb 26 rev. 0.3 6. hardware description the evaluation hardware consists of two components: a daughtercard and a baseboard. note: refer to rev. 0.1 of this document if the si475x/6x baseboard is supplied. 6.1. feature overview figure 31. ?evb features using quar k baseboard? shows va rious connections, jump ers, adjustments, and features for an evb using a quark baseboard. figure 31. evb features using quark baseboard 7 8 6 17 18 19 20 5 21 4 16 13 14 15 9 10 11 12 1 2 3 22
si477x-evb rev. 0.3 27 table 1. evb feature descriptions reference description 1 j1 fm antenna connector/test conductor. 2jp1 am antenna connector 3j33 am test connector 4 tuner pin/net connection points. 5 j48 tuner pin/net connection points. 6 j56 9 v input to ldos. maximum 11 v. 7 j1 vio 1/2 inputs. source with bench powe r supply if on-board ldos are not used. 8 j2 va/vd inputs. source with bench power supply if on-board ldos are not used. 9r72 vio1 ldo adjust. (1.2 ? 3.6 v, nominal 3.3 v) 10 j57 selects tuner vio1 source from ldo or terminal. 11 r74 vio2 ldo adjust. (1.7?3.6 v, nominal 3.3 v) 12 j60 selects tuner vio2 source from ldo or terminal. 13 j59 selects tuner va source from fixed 5 v ldo/usb or terminal. 14 j58 selects tuner vd source from ldo or terminal. 15 r73 vd ldo adjust. (2.7?3.6 v, nominal 3.3 v) 16 sw1 selects usb or 9 v input to ldo. note that in usb position pc 5 v sources va directly which could result in decreased perfo rmance. center position is off. 17 j13 l/r_line_out. l/r lineout (direct from tuner). (rev 3 and later) buffered/110 khz lowpass filtered l-ch analog output when in mpx mode. (rev 2) 18 j14 headphone_out. buffered headphone out. (rev 3 and later) buffered, 30 khz lowpass filtered l, r channe l outputs when in l/r audio mode. (rev 2) 19 d3-d6 leds. 20 pb1 mcu reset. 21 j15 usb connector. 22 j9-j12 current measurement jumpers.
si477x-evb 28 rev. 0.3 6.2. daughtercard each evaluation kit will be provi ded with an si477x daughtercard. each daughtercard contains the minimal application circuit, including the following: ?? si477x tuner ic ?? rf input circuitry ?? crystal ?? eeprom for serial number, calibration constants, and crystal information each daughtercard features a number of test points with di rect access to the tuner si gnal pins. these signals may be disconnected from the baseboard connector by removing either a 0 ? jumper or by removing a solder dot on a printed chevron pattern. small vias allow for connection via wire-wrap wire. the reference freque ncy is generated by the on-chip crystal oscillator by default. if desired, the reference clock may be sourced by the baseboa rd oscillator or an external generator by removing the crystal and inserting a 0.1uf capacitor to bridge the connection. refer to "7. hardware schematics and pcb layout" on page 32 for daughtercard schematics and pcb layouts. 6.3. baseboard the quark baseboard contains all support circuitry, including the following: ?? power supplies: all four si477x supplies derived from usb 5 v or wall pack 9 v supplies ?? usb hid-based communications interface via c8051f340 microcontroller ?? test points for all tuner interface i/o lines ?? direct and buffered l/r/mpx analog outputs 6.3.1. power supplies on-board ldos generate va, vd, vio1, and vio2 supplies fo r the tuner. three of these, vd, vio1, and vio2, are adjustable via trimpot. level translatio n to other blocks, such as the microcon troller, is via discrete translators. switch sw1 selects the ldo configuration as sourced fr om the 9 v coaxial connector or the usb 5 v supply from the pc. when in the usb position, the 5 v analog supply to the tuner is derived directly from the pc usb supply. notes: ?? the usb power supply option is provided for conven ience but may result in decreased rf performance due to pc power supply noise and lack of regulation between pc and the tuner's analog power supply. regulation inaccuracy and cable loss may result in a va supply voltage below specification. ?? ensure any wall power supply has a maximum output voltage of less than 11 v. higher voltages will engage a clamping diode and may damage the ldos. jumpers, shown highlighted in figure 32. ?power supply ju mpers?, select each tuner su pply's source as either the on-board ldo (shown) or external (via j1/j2). tuner supply currents may be measured by opening jumpers j9-j12 and inserting an ammeter in positions jp8- jp11.
si477x-evb rev. 0.3 29 figure 32. power supply jumpers 6.3.2. microcontroller/usb interface communication to the tuner and configur ation is through firmware on a silicon laboratories c8051f340 usb microcontroller. this device translates usb commands via hid interface to i 2 c control words to the tuner. pb1 resets the microcontroller. led's d3?d6 are driven by the microcontroller. the gree n led d4 lights when the microcontroller has booted. the usb connection may be disconnected once the tuner is configured. tuner settings will persist until reset or the power is removed.
si477x-evb 30 rev. 0.3 6.3.3. headphone amplifier/buffer left and right audio outputs are buffered and lowpass filter ed by on-board amplifiers in figure 33. ?audio output?. the software automatically selects the l/r audio-band output when am or fm modes are selected. the left channel/mpx output is sele cted in mpx mode only. unbuffered l/r outputs are available at the debug header j48. note: use l/r outputs directly from tuner for thd, sinad, and stereo imbalanc e measurements. the headphone amplifier may degrade performance. the analog l/r and mpx outputs are available at two 3.5 m m jacks. the function of each jack varies by baseboard revision. the left jack is a direct, dc-coupled l/r/mpx output from t he tuner. this output should be used for all low-distortion laboratory measurements. the right jack is an ac-coupled, unity-gain-buffered l/r output for listening through headphones or powered speakers. figure 33. audio output
si477x-evb rev. 0.3 31 6.4. si4770module-a-evb separately from the si477x-evb kit, user's may also order an si4770m odule-a-evb kit. the si4770module-a-evb kit consists of an si4770 module and si477x interposer card. together, these serve in place of a daughter card on an si477x evb. alternatively, the si47 70 module can be installed into a user-created system with a compatible pinout. to use the si4770modu le-a-evb in conjunction with an si477x ev b, connect th e module, inte rposer card, and baseboard as shown in the figure below. note: the si4770 module is configured by default for an am loop antenna connected through the si47xx interposer card. for optimum results in conducted tests through the am test sm a connector, remove transformer t2 from the am signal path on the si4770 module. figure 34. si4770module-a-evb module and interposer card
si477x-evb 32 rev. 0.3 7. hardware schematics and pcb layout this section contains schematics, pcb layouts, and bills of material for a ll daughtercards (dcs ) and the baseboard (bb).
si477x-evb rev. 0.3 33 7.1. si477x daughtercard rev 2.0

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si477x-evb 34 rev. 0.3 table 2. si477x dc rev 3.0 bill of materials qty ref des description value mfr mfr part number 1 c1 cap,sm,0402 100pf murata GRM1555C1H101JZ01 1 c10 cap,sm,0402 18pf murata grm1555c1h180jz01 8 c11,c12,c22, c23,c24,c25, c26,c27 cap,sm,0402 np 3 c13,c17,c21 cap,sm,0402 0.1uf murata grm155r71a104ka01d 5c2,c3,c4,c5, c7 cap,sm,0402 2.2nf murata grm155r71h222ka01 2 c6,c20 cap,sm,6.3v, x5r,0603 10uf murata grm188r60j106me47d 1 c8 cap,sm,0402 1nf murata grm155r61h102ka01 1 c9 cap,sm,0402 62pf murata grm1555c1h620jd01 3 d1,d2,d3 esd protector,sm digikey pesd0402-140tr-nd 2 j1,j33 conn, sma, edgemount yazaki ra2ej2-6g 1 j2 conn,sm,2x30 samte csfm-130-02-s-d-a 1 jp1 conn,th,header,1x2 samtec htsw-101-07-g-d 1 l1 ind,sm,0603 220nh murata lqw18anr22g00 1 l2 ind,sm,0603 47nh murata lqw18an47ng00 1 l3 ind,sm,0603 150nh murata lqw18anr15g00 1 l9 ind,sm,0603 10nh murata lqw18an10nj00d 2 r1,r4 res,sm,0402 0r 1 r5 res,sm,0402 np 1 t1 balun,1:1, toko toko 458pt1566 1 t2 transformer,thru-hole silabs sl755tf01 1 u1 ic,sm,si4770,mlp40 silicon labo- ratories si477x 1 u2 ic,sm,ram microchip 34lc02 1 x1 xtal,sm,3.2 x 2.5 mm 37.209375 mhz tai_saw tz1522a
si477x-evb rev. 0.3 35 figure 36. si477x daughtercard rev 2.0 silkscreen
si477x-evb 36 rev. 0.3 figure 37. si477x daughtercard rev 2.0 l1 copper
si477x-evb rev. 0.3 37 figure 38. si477x daughtercard rev 2.0 l2 copper
si477x-evb 38 rev. 0.3 figure 39. si477x daughtercard rev 2.0 l3 copper
si477x-evb rev. 0.3 39 figure 40. si477x daughtercard rev 2.0 l4 copper
si477x-evb 40 rev. 0.3 7.2. quark baseboard rev 1.0 h1 9v_holder jp3 jp5 jp1 11-10-2011_16:10 sergio c. 1.0 quark baseboard 21 3 4 4321 scale a b b a sheet of drawn by +1 512 416 8500 title size b dwg no 400 west cesar chavez austin, texas 78701 usa silicon laboratories, inc. jp2 jp4 j51 9 87 60 6 59 58 57 56 55 54 53 52 51 50 5 49 48 47 46 45 44 43 42 41 40 4 39 38 37 36 35 34 33 32 31 30 3 29 28 27 26 25 24 23 22 21 20 2 19 18 17 16 15 14 13 12 11 10 1 conn_tfm_th j48 1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 27 28 29 3 30 32 33 34 35 36 37 38 39 4 40 5 6 7 8 9 31 41 43 45 42 44 48 46 47 53 51 49 55 57 59 58 56 54 52 50 60 conn2x30 j17 j18 gnd qout_tnr qout_tnr v_3v3_bb icin_tnr icin_tnr dout_tnr dout_tnr icip_tnr icip_tnr icon_tnr icon_tnr d_3_tnr d_3_tnr d_1_tnr d_1_tnr d_2_tnr d_2_tnr intb_2_tnr intb_2_tnr intb_1_tnr intb_1_tnr vio1_tnr vio1_tnr scl_tnr scl_tnr rstb_1_tnr rstb_1_tnr vd_tnr vd_tnr vd_tnr iqfs_tnr iqfs_tnr dfs_tnr dfs_tnr d_tnr d_tnr vio2_tnr vio2_tnr dclk_tnr dclk_tnr iout_tnr iout_tnr iqclk_tnr iqclk_tnr lout_tnr lout_tnr rout_tnr rout_tnr va_tnr va_tnr va_tnr xin_tnr xout_tnr sda_tnr sda_tnr icop_tnr icop_tnr id_eeprom_sck id_eeprom_sda v_pgm v_pgm d_0_tnr d_0_tnr vio1_ref vio1_ref rstb_2_tnr rstb_2_tnr u3_en/disable u1_en/disable for use with iscb board. daughter card interfaces tuner daugher card (_tnr) tuner test points connectors can be used to populate a 2x7 hdr 5 1 figure 41. quark baseboard schematic: connectors
si477x-evb rev. 0.3 41 0r r2 r3 np u5 in 1 off 4 set 5 out 8 2 gnd 3 gnd 6 gnd 7 gnd max604 c18 100pf c19 0.1uf c14 10uf 10uf c15 jp6 r1 np j16 j11 j10 j12 j9 r72 ccw cw wiper 10k r74 ccw cw wiper 10k r73 ccw cw wiper 10k u19 in 1 off 4 set 5 out 8 2 gnd 3 gnd 6 gnd 7 gnd max604 u18 in 1 off 4 set 5 out 8 2 gnd 3 gnd 6 gnd 7 gnd max604 u17 in 1 off 4 set 5 out 8 2 gnd 3 gnd 6 gnd 7 gnd max604 u20 in 1 off 4 set 5 out 8 2 gnd 3 gnd 6 gnd 7 gnd max604 d2 zener_11v c173 10uf c172 10uf c171 10uf c170 10uf 0.1uf c32 100pf c33 0.1uf c26 100pf c23 0.1uf c24 100pf c22 0.1uf c21 11-10-2011_16:07 sergio c. 1.0 quark baseboard 21 3 4 4321 scale a b b a sheet of drawn by +1 512 416 8500 title size b dwg no 400 west cesar chavez austin, texas 78701 usa silicon laboratories, inc. j1 4 3 2 1 1 2 3 4 pwr_term c9 10uf c11 10uf c7 10uf c6 10uf 100pf c27 10k r18 100pf c25 c10 10uf 29.4k r16 10k r20 j2 4 3 2 1 1 2 3 4 pwr_term c12 10uf c8 10uf 0.1uf c28 48.7k r15 3.16k r17 c5 10uf j56 1 2 3 conn_pj-016 100pf c34 jp7 21 f5 l2 0r l1 0r 100pf c29 f4 100pf c30 0.1uf c31 r13 7.87k r12 0r r14 8.87k r11 4.99k sw1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 eg4319 j58 j57 j60 j59 jp8 jp9 jp10 jp11 v_3v3_bb vio1_tnr vd_tnr vio2_tnr va_tnr va_ref v_9v_ext v_5v_usb vio2_ref vd_ref vio1_ref v_unreg can use to set other than default 3.3. baseboard: fixed 3.3v resistors optional: used to disconnect 3v3 from mcu ldo / term selection ldo / term selection ldo / term selection tuner current measmt point tuner current measmt point vo = 1.2 (1 + rtop/rbot) vo = 1.2 (1 + rtop/rbot) vo = 1.2 (1 + rtop/rbot) vo = 1.2 (1 + rtop/rbot) vio1: adjustable 1.2 - 3.6v vio2: adjustable 1.7 - 3.6v vd: adjustable 2.7 - 3.6v si475x power supplies to mcu si475x power supplies tuner current measmt point tuner current measmt point ldo / term selection va: 5v (normal) +11.5v maximum!! external / usb power selection for use with 9v battery 5 2 figure 42. quark baseboard schematic: power supplies
si477x-evb 42 rev. 0.3 10uf c3 f6 c52 0.33uf 0.33uf c53 c43 0.1uf f7 r4 20k 20k r19 u2 6 7 8 5 4 2 3 9 10 1 ina vdd voa mute sd bypass inb voc vob gnd lm4911 r24 20k r25 20k 20k r26 j3 j4 j13 2 3 1 s r t 11-10-2011_15:00 sergio c. 1.0 quark baseboard 21 3 4 4321 scale a b b a sheet of drawn by +1 512 416 8500 title size b dwg no 400 west cesar chavez austin, texas 78701 usa silicon laboratories, inc. c4 100pf c37 np c2 np c1 np f3 j14 2 3 1 s r t c36 np 0r r30 r31 0r c35 100pf c20 100pf v_3v3_bb v_3v3_bb lout_tnr rout_tnr audio_hp_shdn 5 3 analog audio path analog audio path headphone out line out connections place close to jack place close to jack place close to jack place close to amp place close to amp figure 43. quark baseboard schematic: analog audio path
si477x-evb rev. 0.3 43 j15 d+ d- gnd vcc usb_connect d1 3 4 2 1 sp0503baht l3 4 3 21 usb_choke u8 p2.3 35 p2.4 34 p2.5 33 p2.6 32 p2.7 31 p3.7 23 p4.1 21 vbus 12 regin 11 p2.2 36 /rst/c2ck 13 p0.5 1 p0.4 2 p0.3 3 p0.2 4 p0.1 5 p0.0 6 gnd 7 d+ 8 d- 9 vdd 10 c2d 14 p4.7 15 p4.6 16 p4.5 17 p4.3 19 p4.2 20 p4.4 18 p4.0 22 p3.6 24 p3.5 25 p3.4 26 p3.3 27 p3.2 28 p3.1 29 p3.0 30 p2.1 37 p2.0 38 p1.7 39 p1.6 40 p1.5 41 p1.4 42 p1.3 43 p1.2 44 p1.1 45 p1.0 46 p0.7 47 p0.6 48 c08051f340 0r r68 0r r69 0r r66 0r r64 0r r63 0r r70 c98 0.1uf 1k r45 1k r46 c58 0.1uf 20-10-2011_09:39 sergio c. 1.0 quark baseboard 21 3 4 4321 scale a b b a sheet of drawn by +1 512 416 8500 title size b dwg no 400 west cesar chavez austin, texas 78701 usa silicon laboratories, inc. c56 0.1uf c93 0.1uf r47 10k r51 10k r53 10k r49 10k r48 6.49k r52 6.49k r54 19.1k r50 6.49k c164 1uf c57 np c168 10uf c169 10uf r80 2.15k pb1 2 1 button r78 160 d5 d3 d4 d6 f2 160 r77 160 r79 j46 tsm-105-01-t-dv 10 8 6 4 2 9 7 5 3 1 f1 r6 4.7k r5 4.7k u7 3 6 1 2 4 5 a0 a1 gnd scl vcc sda 34lc02 gnd v_3v3_bb v_3v3_bb v_3v3_bb v_3v3_bb id_eeprom_sck id_eeprom_sda va_ref v_5v_usb vio2_ref vd_ref d6_mcu d4_mcu d5_mcu d7_mcu d8_mcu d9_mcu d3_mcu d0_mcu d1_mcu d2_mcu c2d_mcua rstb_c2ck_mcu_a d+ d- audio_hp_shdn vio1_ref d10_mcu d11_mcu d12_mcu d13_mcu d14_mcu (sda_tnr) (scl_tnr) (intb_1_tnr) (intb_2_tnr) (rstb_1_tnr) (rstb_2_tnr) (v_pgm) (icon_tnr) (icop_tnr) (d_1_tnr) (d_2_tnr) (d_3_tnr) (icin_tnr) (icip_tnr) 5 4 (d_o_tnr) baseboard control mcu mcu yl bl gr rd connector shell not grounded. c2 debug/ reset to ldo's figure 44. quark baseboard schematic: mcu
si477x-evb 44 rev. 0.3 r59 0r u3 11 12 13 14 15 10 9 8 7 6 16 17 18 19 20 5 4 3 2 1 vl1 vl vl2 vl3 vl4 vcc1 vcc vcc2 vcc3 vcc4 vl5 vl6 vl7 vl8 en vcc5 vcc6 vcc7 vcc8 gnd max3002 0r r82 np r34 np r35 1uf c46 c47 4.7nf u9 2 8 7 6 5 4 3 1 vcca sdaa gnd en sdab sclb vccb scla pca9517 r37 4.7k 4.7k r38 c44 1uf c45 4.7nf c50 10uf c48 0.1uf 0.1uf c49 10uf c51 4.7k r36 r39 4.7k r76 0r 0r r62 0r r75 r71 0r 0r r67 r61 0r 0r r60 r81 0r c17 10uf u1 11 12 13 14 15 10 9 8 7 6 16 17 18 19 20 5 4 3 2 1 vl1 vl vl2 vl3 vl4 vcc1 vcc vcc2 vcc3 vcc4 vl5 vl6 vl7 vl8 en vcc5 vcc6 vcc7 vcc8 gnd max3002 c13 0.1uf 0.1uf c16 c42 10uf r21 0r 0r r22 r23 0r 0r r65 r83 0r 11-10-2011_11:06 sergio c. 1.0 quark baseboard 21 3 4 4321 scale a b b a sheet of drawn by +1 512 416 8500 title size b dwg no 400 west cesar chavez austin, texas 78701 usa silicon laboratories, inc. v_3v3_bb v_3v3_bb v_3v3_bb icin_tnr icip_tnr icon_tnr d_3_tnr d_1_tnr d_2_tnr intb_2_tnr intb_1_tnr scl_tnr rstb_1_tnr sda_tnr icop_tnr v_pgm d6_mcu d4_mcu d5_mcu d7_mcu d8_mcu d9_mcu d3_mcu d0_mcu d1_mcu d2_mcu d_0_tnr vio1_ref vio1_ref vio1_ref rstb_2_tnr d10_mcu d11_mcu d12_mcu d13_mcu d14_mcu u3_en/disable u1_en/disable from mcu to tnr connector 5 (rstb_2_tnr) (rstb_1_tnr) (v_pgm) (intb_2_tnr) (intb_1_tnr) (scl_tnr) (sda_tnr) (d_o_tnr) (icon_tnr) (icop_tnr) (d_1_tnr) (d_2_tnr) (d_3_tnr) (icin_tnr) (icip_tnr) (optional default no-pop) 5 level shifter level shifter figure 45. quark baseboard schematic: level shifter
si477x-evb rev. 0.3 45 figure 46. quark baseboard top silkscreen
si477x-evb 46 rev. 0.3 figure 47. quark baseboard l1 copper
si477x-evb rev. 0.3 47 figure 48. quark baseboard l2 copper
si477x-evb 48 rev. 0.3 figure 49. quark baseboard l3 copper
si477x-evb rev. 0.3 49 figure 50. quark baseboard l4 copper
si477x-evb 50 rev. 0.3 figure 51. quark baseboard bottom silkscreen
si477x-evb rev. 0.3 51 7.3. si4770 module rev1.0 np j36 np j37 rf u4 4 2 3 1 gnd vin vout nc ams1117_3_3 rf rf rf rf 47k r7 47k r6 rf 2.2k r5 2.2k r3 0r r1 22uf c14 0r r2 f4 c12 0.1uf f1 f2 j1 18 19 16 15 17 14 13 12 11 10 9 8 7 6 5 4 3 2 1 conn1x19 2.2nf c21 c4 2.2nf 1.0 si477x module ed bell 11 09-02-2012_11:09 21 3 4 4321 scale a b b a sheet of drawn by +1 512 416 8500 title size b dwg no rev 400 west cesar chavez austin, texas 78701 usa silicon laboratories, inc. x1 37.209375mhz 3.2x2.5 c7 2.2nf rf t1 4 2 3 16 1:1 rf np c22 c8 1nf c9 62pf l1 220nh l3 150nh c5 2.2nf np c23 u1 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 fmvar fmxip fmxin gndrf rfreg fmo fmi wxi amiw amil a0 a1 rstb sda scl intb vio1 vd dbyp vio2 iqclk iqfs iout qout dout dfs dclk xout va lout rout xtal2 xtal1 dacref gpio2 gpio1 fmagc2 fmagc1 gnd_pad nc nc si477x t2 5 4 3 1 sl755tf01 silabs r4 0 l2 47nh c10 18pf 100pf c1 c3 2.2nf c20 10uf d1 esd_diode 10uf c6 10nh l9 0.1uf c2 d3 esd_diode rf rf 0.1uf c13 c24 np c25 np c26 np rf rf rf rf c11 np vd vd gnd va va fm_ant fm_ant dclk dout dfs intb scl rstb sda am_lp1 am_lp1 am_lp2 am_lp2 +5v lout rout silicon laboratories confidential: disclosure under nda only. optional audio output filter figure 52. module schematic
si477x-evb 52 rev. 0.3 figure 53. module top silkscreen
si477x-evb rev. 0.3 53 figure 54. module l1 copper
si477x-evb 54 rev. 0.3 figure 55. module l2 copper figure 56. module l3 copper
si477x-evb rev. 0.3 55 figure 57. module l4 copper
si477x-evb 56 rev. 0.3 7.4. si477x interposer rev 1.0 u1 6 4 1 2 3 5 a0 sda gnd scl a1 vcc 34lc02 0.1uf c1 j2 sma_edge jp? jp1 r? 0 0 r? ext_supply j? sma_edge np j? np j? 0 j? 1.0 sergio c. 11 10-02-2012_15:50 si477x module interposer 21 3 4 4321 scale a b b a sheet of drawn by +1 512 416 8500 title size b dwg no rev 400 west cesar chavez austin, texas 78701 usa silicon laboratories, inc. j1 18 19 16 15 17 14 13 12 11 10 9 8 3 2 1 7 6 5 4 conn1x19 r? 0 r5 0 r4 0 r3 0 0 j? j? np r6 0 j3 conn_sfm_sm 9 87 60 6 59 58 57 56 55 54 53 52 51 50 5 49 48 47 46 45 44 43 42 41 40 4 39 38 37 36 35 34 33 32 31 30 3 29 28 27 26 25 24 23 22 21 20 2 19 18 17 16 15 14 13 12 11 10 1 0 r18 r19 0 va_tnr fm_ant id_eeprom_sck id_eeprom_sck id_eeprom_sda id_eeprom_sda lout_tnr lout_tnr intb_1_tnr intb_1_tnr sda_tnr sda_tnr rout rstb_1 sda scl intb_1 scl_tnr rstb_1_tnr rout_tnr lout v_3v3_bb am_lp1 am_lp2 dout dclk dfs dclk_tnr dfs_tnr dfs_tnr dout_tnr fm_ant am_ant am_loop figure 58. interposer schematic
si477x-evb rev. 0.3 57 figure 59. interposer top silkscreen
si477x-evb 58 rev. 0.3 figure 60. interposer l1 copper
si477x-evb rev. 0.3 59 figure 61. interposer l2 copper
si477x-evb 60 rev. 0.3 d ocument c hange l ist : revision 0.1 to revision 0.2 ?? converted document to quark baseboard. revision 0.2 to revision 0.3 ?? added support for t he si4770module-a-evb.
si477x-evb rev. 0.3 61 n otes :
si477x-evb 62 rev. 0.3 c ontact i nformation silicon laboratories inc. 400 west cesar chavez austin, tx 78701 tel: 1+(512) 416-8500 fax: 1+(512) 416-9669 toll free: 1+(877) 444-3032 please visit the silicon labs technical support web page: https://www.silabs.com/support/pages/contacttechnicalsupport.aspx and register to submit a technical support request. silicon laboratories and silicon labs are trademarks of silicon laboratories inc. other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders. the information in this document is believed to be accurate in all respects at the time of publ ication but is subject to change without notice. silicon laboratories assumes no responsibility for errors and om issions, and disclaims responsibi lity for any consequences resu lting from the use of information included herein. ad ditionally, silicon laboratorie s assumes no responsibility for the functioning of und escribed features or parameters. silicon laboratories reserves the right to make changes without further notice . silicon laboratories makes no wa rranty, rep- resentation or guarantee regarding the suitability of its products for any particular purpose, nor does silicon laboratories as sume any liability arising out of the application or use of any product or circuit, and s pecifically disclaims any and all liability, including wi thout limitation conse- quential or incidental damages. silicon laborat ories products are not designed, intended, or authorized for use in applications intended to support or sustain life, or for any other application in which the failure of t he silicon laboratories product could create a s ituation where per- sonal injury or death may occur. should buyer purchase or us e silicon laboratories products for any such unintended or unauthor ized ap- plication, buyer shall indemnify and hold silicon laboratories harmles s against all claims and damages.

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