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tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 1 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com 24-pin 4x4 mm leadless qfn package applications ? mobile infrastructure ? lte / wcdma / cdma / edge ? test equipments and sensors ? if and rf applications ? general purpose wireless functional block diagram product features ? dc ? ? ? 4 ghz ? 0.5 ? db lsb steps to 31.5 ? db ? +57 ? dbm input ip3 ? 1.7 ? db insertion loss at 2.2 ? ghz ? serial control interface ? no requirement for external bypass capacitors for operation above 700 ? mhz ? 50 ?? impedance ? +5 ? v supply voltage. 3.3v ttl logic compatible pin configuration pin no. label 1, 16-17, 19-24 n/c 2 clk 3 serin 4 le 6 rf in 13 rf out 15 serout 18 v dd 7, 8, 9, 10, 11, 12 acgnd1 ? ? ? acgnd6 5, 14 gnd backside pad gnd general description the tqp4m9072 is a high linearity, low insertion loss, 6 bit, 31.5 ? db digital step attenuator (dsa) operating ove r the dc ? ? ?? ghz frequency range. the digital step attenuator uses a single positive +5 ? v supply and has a serial periphery interface (spi tm ) for changing attenuation states. this product maintains high attenuation accuracy over frequency and temperature. no external matching components are needed for the dsa. the product has an added feature of not requiring external ac ground capacitors for operation above 700 mhz. the tqp4m9072 is available in a standard lead-free /green/rohs-compliant 24-pin 4x4mm qfn package. also available from triquint is the tqp4m9071, a footprint and pin compatible dsa with a parallel control interface. ordering information part no. description tqp4m9072 6 bit, 31.5 ? db dsa tqp4m9072-pcb_ if 40 ? ? ? 500 ? mhz evaluation board tqp4m9072-pcb_rf 0.7 ? ? ? 4 ? ghz evaluation board pcb includes usb control interface board, evh. standard t/r size = 2500 pieces on a 13? reel.
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 2 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com recommended operating conditions parameter min typ max units device voltage (v dd ) +3.3 +5 +5.25 v case temperature ? 40 +105 c electrical specifications ar e measured at specified test conditions. specifications are not guaranteed over all recommended operating conditions. absolute maximum ratings parameter rating storage temperature ? 55 to 150 ? c junction temperature 150 ? c rf input power, 50 ? ,t = 85 ? c +28 ? dbm device voltage (v dd ) +6.0 ? v digital input voltage v dd + 0.5 ? v operation of this device out side the parameter ranges given above may cause permanent damage. electrical specifications test conditions: v dd =+5 ? v, temp= +25 ? c, 50 ? system, mode 1, no external bypass capacitors used on pins 7 ? ? ? 12. parameter conditions min typ max units operational frequency range see note 1 and 2. dc 4000 mhz insertion loss 1.0 ghz 1.3 db 2.0 ghz 1.6 db 2.2 ghz 1.7 2.2 db 3.5 ghz 2.1 db return loss a ll states 17 db accuracy error 0.04 ? ? ? 2.7 ghz, all states, mode 2 (0.3 + 3% of atten. setting) max db 0.7 ? ? ? 2.7 ghz, all states, mode 1 or mode 2 (0.3 + 3% of atten. setting) max db 2.7 ? ? ? 3.5 ghz, all states, mode 1 or mode 2 (0.4 + 4% of atten. setting) max db attenuation step to be monotonic (step attenuation 0) 0 0.5 db input ip3 input power ? = ? +15 ? dbm / tone, all states +57 dbm input p0.1 ? db all states, dc ? ? ? 4 ghz +30 dbm time rise / fall 10% / 90% rf 90 ns time on , time off 50% ctl to 10% / 90% rf 100 ns supply voltage, v dd +5 v supply current, i dd 2.0 ma notes: 1. in mode 1 no external bypass capacitor s are used and operating frequency is 0.7 ? ? ? 4ghz. see detailed device description. 2. in mode 2 external bypass capacitors are used and operating frequency may be extended to 0.04 ? ? ? 4ghz. see detailed device description.
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 3 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com serial control interface the tqp4m9072 has a cmos spi tm input compatible serial interface. this se rial control interface converts the serial data input stream to parallel output word. the input is 3-wire (clk, le and sid) spi tm input compatible. at power up, the serial control interface resets the dsa to the minimum gai n state. the 6-bit sid (serial input data) word is loaded into the register on rising edge of the clk, msb firs t. when le is high, clk is internally disabled. serial control timing characteristics (test conditions: v dd = +5 v, temp.=25c) parameter condition min max units clock frequency 50% duty cycle 10 mhz le setup time, t lesup after last clk rising edge 10 ns le pulse width, t lepw 30 ns serin set-up time, t sdsup before clk rising edge 10 ns serin hold-time, t sdhld after clk rising edge 10 ns le pulse spacing, t le le to le pulse spacing 630 ns serial control dc logic characteristics (test conditions: v dd = +5 v, temp.=25c) parameter condition min max units input low state voltage, v il 0 0.8 v input high state voltage, v ih 2.4 v dd v output high state voltage, v oh on sod pin 2.0 v dd v output low state voltage, v ol on sod pin 0 0.8 v input current, i ih / i il on sid, le and clk pins ? 10 +10 a serial control dc lo g ic characteristics ( test conditions: v dd = +3.3 v, tem p .=25c ) input low state voltage, v il 0 0.8 v input high state voltage, v ih 2.8 v dd v input current, i ih / i il on sid, le and clk pins ? 10 +10 a serin control logic truth table timing diagram 6-bit control word attenuation state clk is internally disabled when le is high msb lsb d5 d4 d3 d2 d1 d0 1 1 1 1 1 1 reference : il 1 1 1 1 1 0 0.5 db 1 1 1 1 0 1 1 db 1 1 1 0 1 1 2 db 1 1 0 1 1 1 4 db 1 0 1 1 1 1 8 db 0 1 1 1 1 1 16 db 0 0 0 0 0 0 31.5 db any combination of the possibl e 64 states will provide an attenuation of approximately the sum of bits selected
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 4 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com detailed device description the tqp4m9072 is a high linearity, low insertion loss, wideband, 6-bit, 31.5 ? db digital step attenuator. the digital step attenuator uses a single 5 ? v supply and has a cmos spi tm controller. this product maintains high attenuation accuracy over frequency and temperatur e. the product does not require any external bypass capacitors on ac ground pins for operation above 700 mhz. the dsa performance remains unchanged for frequency range 0.7 ? 4 ghz in either mode 1 or mode 2. the operating frequency may be extended to low frequency range (0.04 ? 0.7 ghz) with external bypass capacitors on ac ground pins (acgnd1-acgnd6). further assistance may be requested from triquint applications engineering: email: sjcapplications.engineering@triquint.com functional schematic diagram ?
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 5 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com typical performance plots performance plots data is measured using bias tee on rf ports in mode 2 configuration. mode 2 operation is required to obtain performance at frequencies lower than 0.7 ghz. for frequency range 0.7 ? ? ? 4.0 ghz, data is identical in mode 1 and mode 2. ? -4 -3 -2 -1 0 0 500 1000 1500 2000 2500 3000 3500 4000 insertion loss (db) frequency (mhz) insertion loss vdd = 5v +25c -40c +85c -35 -30 -25 -20 -15 -10 -5 0 0 500 1000 1500 2000 2500 3000 3500 4000 insertion loss (db) frequency (mhz) attenuation only major states, vdd = 5v, 25 o c 0.5db 1db 2db 4db 8db 16db 31.5db ? -35 -30 -25 -20 -15 -10 -5 0 0 500 1000 1500 2000 2500 3000 3500 4000 input return loss (db) frequency (mhz) input return loss only major states, vdd = 5v, 25c 0db 1db 2db 4db 8db 16db 31.5db -45 -40 -35 -30 -25 -20 -15 -10 -5 0 0 500 1000 1500 2000 2500 3000 3500 4000 output return loss (db) frequency (mhz) output return loss only major states, vdd = 5v, 25c 0db 1db 2db 4db 8db 16db 31.5db ? -30 -25 -20 -15 -10 -5 0 0 500 1000 1500 2000 2500 3000 3500 4000 input return loss (db) frequency (mhz) input return loss vs. temperature vdd = 5v, attenuation state = 0db 25c -40c 85c -30 -25 -20 -15 -10 -5 0 0 500 1000 1500 2000 2500 3000 3500 4000 output return loss (db) frequency (mhz) output return loss vs. temperature vdd = 5v, attenuation state = 0db 25c -40c 85c
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 6 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com typical performance plots ? 45 50 55 60 65 0 5 10 15 20 25 30 input ip3 (dbm) attenuation states (db) input ip3 vs. attenuation states +25c -40c +85c frequency = 2 ghz vdd = 5v 45 50 55 60 65 0 5 10 15 20 25 30 input ip3 (dbm) attenuation states (db) input ip3 vs. attenuation states +25c -40c +85c using mode 2 frequency = 150 mhz vdd = 5v ? -10 0 10 20 30 40 50 60 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 relative phase (degree) frequency (ghz) relative phase vs. frequency 0.5 db 1db 2db 4db 8db 16db 31.5db vdd = 5 v , temp. = 25 o c -1.0 -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 0 5 10 15 20 25 30 attenuation error (db) attenuation states (db) attenuation error vs. attenuation states 0.9 ghz 1.8 ghz 2.2 ghz 2.7 ghz vdd = 5 v , temp. = 25 o c
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 7 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com mode 1: 0.7 ? 4.0 ghz op eration (tqp4m9072-pcb_rf) no external bypass capacitors required. there are 0.2 pf shunt capacitors (c5 and c7) next to rf connectors, on the application board, to resonate out the rf connector parasit ic. these shunt capacitors are not required in the final application circuit. ? ? mode 2: 0.04 ? 4.0 ghz op eration (tqp4m9072-pcb_if) external bypass capacitors required on acgnd0 ? ? ? acgnd5 pins. for improved oper ation below 0.1 ghz, blocking and bypass capacitors values can be increa sed to 10 nf. this circuit configuration can also be used for operation up to 4 ghz. the dsa performance remains unchanged for frequency range 0.7 ? ? ? 4 ghz in either mode 1 or mode 2. there are 0.2 pf shunt capacitors (c5 and c7) next to rf conne ctors, on the application boa rd, to resonate out the rf connector parasitic. these shunt capacitors are not required in the final application circuit. ?
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 8 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com bill of material: tqp4m9071-pcb_if reference desg. value description manufacturer part number u1 n/a high linearity 6-bit, 31.5db, dsa triquint tqp4m9072 c2, c6, c16 47 pf cap, chip, 0402, 50v, npo, 5% various c1,c3 1000 pf cap, chip, 0402, 50v, x7r, 10% various c4 0.1 uf cap, chip, 0402, 50v, x7r, 10% various r1, r2, r3 33 res, chip, 0402, 1/16w, 1% various r4 15 res, chip, 0402, 1/16w, 5% various c10, c11, c12, c13 330 pf cap, chip, 0402, 50v, x7r, 10% various bill of material: tqp4m9071-pcb_rf reference desg. value description manufacturer part number u1 n/a high linearity 6-bit, 31.5db, dsa triquint tqp4m9072 c2, c6, c16 47 pf cap, chip, 0402, 50v, npo, 5% various c1,c3 1000 pf cap, chip, 0402, 50v, x7r, 10% various c4 0.1 uf cap, chip, 0402, 50v, x7r, 10% various r1, r2, r3 33 res, chip, 0402, 1/16w, 1% various r4 15 res, chip, 0402, 1/16w, 5% various c10, c11, c12, c13 dnp do not place various tqp4m9072-pcb_rf/if schematic ? thru calibration line
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 9 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com pin configuration and description pin no. label description 2 clk clock. this serial clock is used to clock in the serial data to the registers. the data is latched on the clk rising edge. this input is a high impedance cmos input. 3 serin serial input data. the 6-bit serial data is loaded msb first. this input is a high impedance cmos input. 4 le latch enable, when le goes high, 6-bit data in the serial input register is transferred to the attenuator. when le is high, clk is disabled 6 rf in rf input, dc voltage present, blocking capaci tor required. can be used for input or output. 7 acgnd1 ac ground for extended low frequency operation option 8 acgnd2 ac ground for extended low frequency operation option 9 acgnd3 ac ground for extended low frequency operation option 10 acgnd4 ac ground for extended low frequency operation option 11 acgnd5 ac ground for extended low frequency operation option 12 acgnd6 ac ground for extended low frequency operation option 13 rf out rf output, dc voltage present, blocking capac itor required. can be used for input or output. 15 serout serial output data 18 v dd supply voltage. bypass capacitor required close to the pin. dropping resistor highly recommended ensuring compatibility with different power supplies. 5, 14 gnd these pins must be connected to rf/dc ground 1, 16-17, 19-24 n/c no electrical connection. land pads should be provided for pcb mounting integrity. backside pad gnd rf/dc ground. use recommended via pattern to minimize inductance and thermal resistance. see pcb mounting pattern for suggested footprint.
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 10 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com applications information pc board layout top rf layer is .020? rogers-4003, ? r = 3.45, 4 total layers (0.062? thick) for mech anical rigidity. metal layers are 1-oz copper. microstrip line details: width = .040?, spacing = .020?. external dc blocking capacitors are required on rfin and rfout pins of the device. the supply voltage for the ds a is supplied externally through pin vdd. frequenc y bypassing for this pin is supplied by surface moun t capacitor 0.1 uf (c4). this capacitor is placed close to the device pin in the board la yout. to ensure application circuit is compatible with different standard powe r supplies, 15 (r4) dropping resistor is highly recommended on vdd supply line. r1, r2 and r3 are used as termination for digital noise o r any noise reflection on serial input, clk and le pins. rf layout is critical for getting the best performance. rf trace impedance needs to be 50 ohm. for measuring the actual device performance on connectorized pc board, input losses due to rf traces need to be subtracted from the data measured through sma connectors. the calibration microstrip li ne j6-j7 estimates the pcb insertion loss for removal from the evaluation board measured data. all data s hown on the datasheet are de- embedded up to the device input/output pins. the pc board is designed to test using usb control interface board, evaluation board host (evh). each tqp4m9072 evaluation board is supplied with the evh board, usb cable and evh graphical user interface (evh gui) to change attenuation states. manual for using evh and application note describing the evh are also available. refer to triquint?s website for more information the pad pattern shown has been developed and tested for optimized assembly at triquint semiconductor. the pcb land pattern has been developed to accommodate lead and package tolerances. since surface moun t processes vary from company to company, careful process development is recommended.
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 11 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com package marking and dimensions gnd/thermal pad .10 c .08 c seating plane 24x 4.000 4.000 2.700.05 exp. dap 24x 0.400.05 2.700.05 exp. dap .8500.050 c 24x 0.250.05 24x 0.50 pitch pin #1 identifier chamfer 0.300 x 45 terminal #1 identifier 5 6 6 4 5 r.075 2.50 ref. .203 ref. 0.000 0.050 notes: 1. all dimensions are in millim eters. angles are in degrees. 2. dimension and tolerance formats conform to asme y14.4m-1994. 3. the terminal #1 identifier and terminal numbering conform to jesd 95-1 spp-012. 4. co-planarity applies to the exposed ground/thermal pad as well as the contact pins. 5. package body length/width does not include pl astic flash protrusion across mold parting line. pcb mounting pattern notes: 1. all dimensions are in millimeters. angles are in degrees. 2. use 1 oz. copper minimum for top and bottom layer metal. 3. vias are required under the backside paddle of this device for pr oper rf/dc groundi ng and thermal diss ipation. we recommend a 0.35mm (#80/.0135") diameter bit for drilling via hole s and a final plated thru diameter of 0.25 mm (0.10?). 4. ensure good package backside paddle solder attach for reliable operation and best electrical performance. 4m9072 yyww aaxxxx package marking product identifier: 4m9072 date code: yyww assembly code: aaxxxx
tqp4m9072 high linearity 6-bit, 31.5 db digital step attenuator datasheet: rev o 11-20-14 - 12 of 12 - disclaimer: subject to change without notice ? 2014 triquint www.tri q uint.com product compliance information esd sensitivity ratings caution! esd-sensitive device esd rating: class 1c value: ? ? 1000 ? v to < ? 2000 ? v test: human body model (hbm) standard: esda/jedec standard js-001-2012 esd rating: class c3 value: ? ? 1000 ? v test: charged device model (cdm) standard: jedec standard jesd22-c101f solderability compatible with both lead-free (260 ? c maximum reflow temperature) and tin/lead (245 ? c maximum reflow temperature) soldering processes. package lead plating: annealed matte tin over copper rohs compliance this part is compliant with eu 2002/95/ec rohs directive (restrictions on t he use of certain hazardous substances in electrical and electronic equipment). this product also has the following attributes: ? lead free ? halogen free (chlorine, bromine) ? antimony free ? tbbp-a (c 15 h 12 br 4 0 2 ) free ? pfos free ? svhc free msl rating msl rating: level 1 test: +260 ? c convection reflow standard: jedec standard ipc/jedec j-std-020 contact information for the latest specifications, additional product information, worldwide sales and distribution locations, and information about triquint: web: www.triquint.com tel: +1.503.615.9000 email: info-sales@triquint.com fax: +1.503.615.8902 for technical questions and application information: email: sjcapplications.engineering@triquint.com important notice the information contained herein is believed to be reliable. triquint makes no warranties regarding the information contained herein. triquint assumes no responsibility or li ability whatsoever for any of the information contained herein. triquint assume s no responsibility or liability whatsoever for the use of the information contained herein. the information contained herein is provided "as is, where is " and with all faults, and the entire risk associated with such information is entirely with the user. a ll information contained herein is subject to change without notice. customers should obtain and verify the latest relevant info rmation before placing orders fo r triquint products. the information contained herein or any use of such information does not grant, exp licitly or implicitly, to any party any patent rights, licenses, or any other inte llectual property rights, whether with r egard to such information itself o r anything described by such information. triquint products are not warranted or authorized for use as critical components in medical, life-saving, or life- sustaining applications, or other applications where a fa ilure would reasonably be expected to cause severe personal injury or death.

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