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| TH71111 868/915MHz FSK/FM/ASK Receiver ! ! ! ! ! ! ! Single-conversion superhet architecture for low external component count FSK for digital data and FM reception for analog signal transmission FSK/FM demodulation with phase-coincidence demodulator Low current consumption in active mode and very low standby current Switchable LNA gain for improved dynamic range RSSI allows signal strength indication and ASK detection 32-pin Low profile Quad Flat Package (LQFP) Ordering Information Part No. Part Number TH71111 Temperature Code Temperature Code E (-40 C to 85 C) Package Code NE (LQFP32) Package Code Delivery Form 250 pc/tray 2000 pc/T&R Application Examples " " " " " " " " ! General digital data transmission Tire Pressure Monitoring Systems (TPMS) Remote Keyless Entry (RKE) Wireless access control Alarm and security systems Garage door openers Remote Controls Home and building automation Low-power telemetry systems Pin Description OUTP VEE_BIAS RSSI OAP OAN OUT_OA VCC_BIAS 24 VEE_RO RO VCC_PLL ENRX LF VEE_LNA IN_LNA VCC_LNA 25 17 16 OUT_IFA VCC_IF FBC2 FBC1 IN_IFA VEE_IF OUT_MIX2 9 1 VEE_LNAC GAIN_LNA OUT_LNA IN_MIX1 VEE_MIX IF_1P IF_1N VCC_MIX 8 TH71111 32 General Description The TH71111 FSK/FM/ASK single-conversion superheterodyne receiver IC is designed for applications in the European 868 MHz industrial-scientific-medical (ISM) band, according to the EN 300 220 telecommunications standard. It can also be used for any other system with carrier frequencies ranging from 800 MHz to 930 MHz (e.g. for applications according to FCC part 15). 39010 71111 Rev. 013 Page 1 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver Document Content 1 Theory of Operation ...................................................................................................3 1.1 1.2 1.3 1.4 1.5 1.6 1.6.1 1.6.2 General............................................................................................................................. 3 Technical Data Overview.................................................................................................. 3 Block Diagram .................................................................................................................. 4 Mode Configurations ........................................................................................................ 4 LNA GAIN Control ............................................................................................................ 4 Frequency Planning.......................................................................................................... 4 Selected Frequency Plans........................................................................................................... 5 Maximum Frequency Coverage................................................................................................... 5 2 3 Pin Definitions and Descriptions ..............................................................................6 Technical Data............................................................................................................9 3.1 3.2 3.3 3.4 3.5 Absolute Maximum Ratings .............................................................................................. 9 Normal Operating Conditions ........................................................................................... 9 Crystal Parameters ........................................................................................................... 9 DC Characteristics.......................................................................................................... 10 AC System Characteristics ............................................................................................. 11 4 Test Circuits .............................................................................................................12 4.1 4.1.1 4.1.2 Standard FSK Reception ................................................................................................ 12 Standard FSK Application Circuit .............................................................................................. 12 Standard FSK Component List .................................................................................................. 13 4.2 4.2.1 4.2.2 Narrow Band FSK Reception.......................................................................................... 14 Narrow Band FSK Application Circuit ........................................................................................ 14 Narrow Band FSK Component List............................................................................................ 15 4.3 4.3.1 4.3.2 FM Reception (Varactor-tuned AFC) .............................................................................. 16 FM Application Circuit ................................................................................................................ 16 FM Component List.................................................................................................................... 17 4.4 4.4.1 4.4.2 ASK Reception ............................................................................................................... 18 ASK Application Circuit .............................................................................................................. 18 ASK Component List.................................................................................................................. 19 5 Package Description ................................................................................................20 5.1 Soldering Information ..................................................................................................... 20 6 7 8 Reliability Information .............................................................................................21 ESD Precautions ......................................................................................................21 Disclaimer .................................................................................................................22 39010 71111 Rev. 013 Page 2 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 1 1.1 Theory of Operation General With the TH71111 receiver chip, various circuit configurations can be arranged in order to meet a number of different customer requirements. For FM/FSK reception the IF tank used in the phase coincidence demodulator can also be constituted by a ceramic discriminator with a varactor diode to create an AFC circuit. In ASK configuration, the RSSI signal is fed to an ASK detector, which is constituted by the operational amplifier. A double-conversion variant, called TH71112, is also available. This receiver IC allows a higher degree of image rejection, achieved in conjunction with an RF front-end filter. Both RXICs have the same die. At the TH71112, the second mixer (MIX2) is used to down-convert the first IF (IF1) to the second IF (IF2). At the TH71111, MIX2 operates as an amplifier. Efficient RF front-end filtering is realized by using a SAW, ceramic or helix filter in front of the LNA and by adding an LC filter at the LNA output. The TH71111 receiver IC consists of the following building blocks: # # # # # # # # PLL synthesizer (PLL SYNTH) for generation of the local oscillator signal LO, parts of the PLL SYNTH are: the high-frequency VCO1, the feedback divider DIV_32, a phase-frequency detector (PFD) with charge pump (CP) and a crystal-based reference oscillator (RO) Low-noise amplifier (LNA) for high-sensitivity RF signal reception First mixer (MIX1) for down-conversion of the RF signal to the IF IF pre amplifier which is a mixer cell (MIX2) that operates as an amplifier IF amplifier (IFA) to amplify and limit the IF signal and for RSSI generation Phase coincidence demodulator (DEMOD) with third mixer (MIX3) to demodulate the IF signal Operational amplifier (OA) for data slicing, filtering and ASK detection Bias circuitry for bandgap biasing and circuit shutdown 1.2 ! ! ! ! ! Technical Data Overview ! Range of IF: 400 kHz to 22 MHz ! Maximum input level: -10 dBm @ ASK 0 dBm @ FSK ! Image rejection: > 45 dB (e.g. with 868.3 MHz SAW front-end filter and at 10.7 MHz IF) ! Spurious emission: < -70 dBm ! Input frequency acceptance range: up to 100 kHz ! RSSI range: 70 dB ! FM/FSK deviation range: 2.5 kHz to 80 kHz ! Maximum analog modulation frequency: 15 kHz Input frequency range: 800 MHz to 930 MHz Power supply range: 2.3 V to 5.5 V @ ASK Temperature range: -40 C to +85 C Standby current: 50 nA Operating current: 7.5 mA @ low gain mode 9.2 mA @ high gain mode ! Sensitivity: -112 dBm @ ASK 1) -106 dBm @ FSK 2) ! Maximum data rate: 260 kbps NRZ @ ASK 180 kbps NRZ @ FSK 1) at 4 kbps NRZ, BER = 310-3, 180 kHz IF filter BW, without SAW front-end-filter loss 2) at 4 kbps NRZ, BER = 310-3, 20 kHz FSK deviation, 180 kHz IF filter BW, without SAW front-end-filter loss 39010 71111 Rev. 013 Page 3 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 1.3 Block Diagram IN_MIX1 OUT_MIX2 FBC1 IF1N VCC_MIX VEE_LNAC GAIN_LNA OUT_LNA VEE_MIX OUT_IFA IN_DEM IF1P VEE_IF IN_IFA 2 3 4 5 6 7 8 9 RSSI 1 10 11 12 13 21 14 15 16 IN_LNA 31 MIX1 LNA LO IF MIX2 IF MIX3 OUTP OUTN 23 24 IFA OAP OA 20 OAN 19 DIV_32 PFD RO OUT_OA BIAS VCC_BIAS VEE_BIAS VCC_PLL VEE_RO 18 VCO1 VCC_LNA VEE_LNA CP ENRX 32 30 29 LF 26 RO 25 27 28 22 17 Fig. 1: TH71111 block diagram 1.4 Mode Configurations ENRX 0 1 Mode RX standby RX active Description RX disabled RX enable Note: ENRX are pulled down internally 1.5 LNA GAIN Control VGAIN_LNA < 0.8 V > 1.4 V Mode HIGH GAIN LOW GAIN Description LNA set to high gain LNA set to low gain Note: hysteresis between gain modes to ensure stability 1.6 Frequency Planning Frequency planning is straightforward for single-conversion applications because there is only one IF that can be chosen, and then the only possible choice is low-side or high-side injection of the LO signal (which is now the one and only LO signal in the receiver). The receiver's single-conversion architecture requires careful frequency planning. Besides the desired RF input signal, there are a number of spurious signals that may cause an undesired response at the output. Among them is the image of the RF signal that must be suppressed by the RF front-end filter. 39010 71111 Rev. 013 Page 4 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver By using the internal PLL synthesizer of the TH71111 with the fixed feedback divider ratio of N = 16 (DIV_32), two types of down-conversion are possible: low-side injection of LO and high-side injection of LO. The following table summarizes some equations that are useful to calculate the crystal reference frequency (REF) and the LO frequency, for a given RF and IF. Injection type REF LO IF RF image low (RF - IF)/32 32 * REF RF - LO RF - 2IF high (RF + IF)/32 32 * REF LO - RF RF + 2IF 1.6.1 Selected Frequency Plans The following table depicts crystal, LO and image signals considering the examples of 868.3 MHz and 915 MHz RF reception at IF = 10.7 MHz. Signal type Injection type REF / MHz LO / MHz RF image / MHz RF = 868.3 MHz low 26.80000 857.6 846.9 RF = 868.3 MHz high 27.46875 879.0 889.7 RF = 915 MHz low 28.25938 904.3 893.6 RF = 915 MHz high 28.92813 925.7 936.4 The selection of the reference crystal frequency is based on some assumptions. As for example: the image frequency should not be in a radio band where strong interfering signals might occur (because they could represent parasitic receiving signals), the LO signal should be in the range of 800 MHz to 930 MHz (because this is the optimum frequency range of the VCO1). Furthermore the IF should be as high as possible to achieve highest RF image rejection. The columns in bold depict the selected frequency plans to receive at 868.3 MHz and 915 MHz, respectively. 1.6.2 Maximum Frequency Coverage Parameter Injection type RF / MHz REF / MHz LO / MHz IF/ MHz fmin high 789.3 25.0 800 10.7 fmax low 940.7 29.0625 930 10.7 39010 71111 Rev. 013 Page 5 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 2 3 Pin Definitions and Descriptions Name OUT_LNA I/O Type analog output 5k Pin No. Functional Schematic OUT_LNA 3 Description LNA open-collector output, to be connected to external LC tank that resonates at RF LNA input, approx. 26 single-ended ground of LNA core (cascode) LNA gain control (input with hysteresis) 31 1 2 IN_LNA VEE_LNAC GAIN_LNA analog input ground analog input IN_LNA 31 VEE_LNAC 1 GAIN_LNA 2 400 RX standby: no pull-up RX active: pull-up MIX1 input, approx. 33 single-ended 4 IN_MIX1 analog input IN_MIX1 4 13 13 500A 5 6 VEE_MIX IF1P ground analog I/O IF1P 6 20p VCC 20p ground of MIX1 and MIX2 open-collector output, to be connected to external LC tank that resonates at first IF open-collector output, to be connected to external LC tank that resonates at first IF VEE IF1N 7 7 IF1N analog I/O 2x500A VEE 8 9 VCC_MIX OUT_MIX2 supply analog output OUT_MIX2 9 230A 130 positive supply of MIX1 and MIX2 6.8k MIX2 output, approx. 330 output impedance 10 VEE_IF ground ground of IFA and DEMOD 39010 71111 Rev. 013 Page 6 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver Pin No. 11 Name IN_IFA I/O Type analog input IN_IFA 11 VEE VCC Functional Schematic VCC VCC Description IFA input, approx. 2.2k input impedance FBC1 12 12 FBC1 analog I/O 2.2k 2.2k 200A VEE to be connected to external IFA feedback capacitor 13 FBC2 analog I/O FBC2 13 VEE VEE to be connected to external IFA feedback capacitor 14 15 VCC_IF OUT_IFA supply analog I/O OUT_IFA 15 40A positive supply of IFA and DEMOD IFA output and MIX3 input (of DEMOD) 16 IN_DEM analog input IN_DEM 16 DEMOD input, to MIX3 core 47k 17 18 VCC_BIAS OUT_OA supply analog output OUT_OA 18 50 positive supply of general bias system and OA OA output, 40uA current drive capability 19 OAN analog input OAN 50 negative OA input 20A 50 OAP 20 OAP analog input positive OA input 19 20 39010 71111 Rev. 013 Page 7 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver Pin No. 21 Name RSSI I/O Type analog output Functional Schematic Description RSSI output, for RSSI and ASK detection, approx. 36k output impedance RSSI 21 I (Pi) 50 36k 22 23 VEE_BIAS OUTP ground analog output analog output ground analog input RO 26 30p ground of general bias system and OA OUTP OUTN 23 24 50 FSK/FM positive output, output impedance of 100k to 300k 20A 20A 24 OUTN FSK/FM negative output, output impedance of 100k to 300k ground of DIV, PFD, RO and charge pump RO input, Colpitts type oscillator with internal feedback capacitors 25 26 VEE_RO RO 50k 30p 27 28 VCC_PLL ENRX supply digital input ENRX 28 1.5k positive supply of DIV, PFD, RO and charge pump mode control input, CMOS-compatible with internal pull-down circuit 29 LF analog I/O LF 29 400 200 charge pump output and VCO1 control input 4p 30 32 VEE_LNA VCC_LNA ground supply ground of LNA biasing positive supply of LNA biasing 39010 71111 Rev. 013 Page 8 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 3 3.1 Technical Data Absolute Maximum Ratings Parameter Symbol VCC VIN PiRF TSTG TJ RthJA Pdiss VESD1 VESD2 Condition / Note Min 0 - 0.3 @ LNA input -40 Max 7.0 Vcc+0.3 10 +125 +150 60 0.1 +1.0 +0.75 Unit V V dBm C C K/W W kV Supply voltage Input voltage Input RF level Storage temperature Junction temperature Thermal Resistance Power dissipation Electrostatic discharge human body model, 3) human body model, 4) -1.0 -0.75 3) all pins except OUT_LNA, IF1P and IF1N 4) pin OUT_LNA, IF1P and IF1N 3.2 Normal Operating Conditions Parameter Symbol VCC, FSK Condition 0 C to 85 C -20 C to 85 C -40 C to 85 C -40 C to 85 C ENRX pin ENRX pin Min 2.5 2.6 2.7 2.3 -40 0.7*VCC 789.3 0.4 25 800 2.5 Max 5.5 5.5 5.5 5.5 +85 0.3*VCC 940.7 22 29.063 930 80 180 260 15 Unit Supply voltage VCC, ASK TA VIL VIH fi fIF fref fLO f RFSK RASK fm V Operating temperature Input low voltage (CMOS) Input high voltage (CMOS) Input frequency range IF range XOSC frequency VCO frequency Frequency deviation FSK data rate ASK data rate FM bandwidth 5) BIF = 400 kHz, PIN = -90 dBm set by the crystal fLO = 16 * fref at FSK or FM NRZ, C15 = NIP, 5) NRZ, C16 = NIP, 5) C V V MHz MHz MHz MHz kHz kbps kbps kHz 3.3 Crystal Parameters Parameter Symbol f0 CL C0 R1 Condition fundamental mode, AT Min 25 10 Max 29.063 15 7 50 Unit MHz pF pF Crystal frequency Load capacitance Static capacitance Series resistance 39010 71111 Rev. 013 Page 9 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 3.4 DC Characteristics all parameters under normal operating conditions, unless otherwise stated; typical values at TA= 23 C and VCC = 3 V Parameter Operating Currents Standby current Supply current at low gain Supply current at high gain Digital Pin Characteristics Input low voltage CMOS Input high voltage CMOS Pull down current ENRX pin Low level input current ENRX pin Analog Pin Characteristics High level input current GAIN_LNA pin Pull up current GAIN_LNA pin active Pull up current GAIN_LNA pin standby High gain input voltage Low gain input voltage Opamp Characteristics Opamp input offset voltage Opamp input offset current Opamp input bias current RSSI Characteristics RSSI voltage at low input level RSSI voltage at high input level VRSSI, low VRSSI, high Pi = -65 dBm, GAIN_LNA=1 Pi = -35 dBm, GAIN_LNA=1 0.5 1.2 1.0 1.9 1.5 2.5 V V Voffs Ioffs Ibias IOAP - IOAN 0.5 * (IOAP + IOAN) -35 -50 -150 35 50 150 mV nA nA IINHGAIN IPUGAINa IPUGAINs VIHGAIN VILGAIN GAIN_LNA=1 GAIN_LNA=0 ENRX=1 GAIN_LNA=0 ENRX=0 ENRX=1 ENRX=1 0.08 0.15 0.05 0.3 0.05 0.7 1.5 A A A V V VIL VIH IPDEN IINLEN ENRX pin ENRX pin ENRX=1 ENRX=0 -0.3 0.7*VCC 0.1 0.3*Vcc VCC+0.3 10 0.05 V V A A ISBY ICC, low ICC, high ENRX=0 ENRX=1 GAIN_LNA=1 ENRX=1 GAIN_LNA=0 4.5 5.0 50 7.5 9.2 100 12.0 14.0 nA mA mA Symbol Condition Min Typ Max Unit 2 39010 71111 Rev. 013 Page 10 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 3.5 AC System Characteristics all parameters under normal operating conditions, unless otherwise stated; typical values at TA = 23 C and VCC = 3 V, RF at 868.3 MHz; SAW frond-end filter loss and IF at 10.7 MHz; all parameters based on test circuits as shown in Fig. 2, Fig.3 and Fig. 5 Parameter Receive Characteristics Input sensitivity - FSK (standard) Pmin, ST BIF = 180kHz, f = 20kHz, 4kbps NRZ, BER 310-3, 6) BIF = 30kHz, f = 5kHz, 4kbps NRZ, BER 310-3, 6) BIF = 180kHz, 4kbps NRZ, BER 310-3, 6) BER 310-3 GAIN_LNA = 1 -103 dBm Symbol Condition Min Typ Max Unit Input sensitivity - FSK (narrow band) Pmin, NB -105 dBm Input sensitivity - ASK Pmin, ASK -109 dBm Maximum input signal - FSK/FM Maximum input signal - ASK Spurious emission Image rejection Start-up Parameters Crystal start-up time Receiver start-up time Pmax, FSK 0 -10 -70 45 dBm dBm dBm dB ms Pmax, ASK BER 310-3 GAIN_LNA = 1 Pspur Pimag TXTL TRX ENRX from 0 to 1 ENRX from 0 to 1, depends on data slicer time constant, valid data at output 0.9 TXTL + R4 * C17 PLL Parameters VCO gain Charge pump current KVCO ICP 350 60 MHz/V A 6) incl. 3 dB loss of front-end SAW filter 39010 71111 Rev. 013 Page 11 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 4 4.1 4.1.1 Test Circuits Standard FSK Reception Standard FSK Application Circuit OUTP C15 R5 C16 R4 RSSI C17 FSK output VCC RSSI 21 OUTP 23 OAN 19 24 OAP 20 OUT_OA 18 VCC 17 VEE 22 CERDIS 16 XTAL C1 VCC 25 VEE 26 RO 27 VCC 28 ENRX OUT_IFA 15 VCC 14 C12 VCC ENRX C3 R1 29 LF 30 VEE TH71111 GAIN_LNA OUT_LNA IN_MIX1 FBC2 13 C11 C9 R2 C10 FBC1 12 IN_IFA 11 VEE 10 OUT_MIX2 9 IF1N VCC 31 IN_LNA IF1P VEE VEE L2 C5 VCC 32 VCC CERFIL 1 2 3 4 5 6 7 8 6 1 4 3 C7 SAWFIL RL1 RL2 CB* VCC 50 L1 C4 L3 RF input * each Vcc pin with blocking cap of 330pF * one global Vcc blocking cap of 33nF Fig. 2: Test circuit for FSK reception Circuit Features * Tolerates input frequency variations * Well-suited for NRZ, Manchester and similar codes 39010 71111 Rev. 013 Page 12 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 4.1.2 Part C1 C3 C4 C5 C7 C9 C10 C11 C12 C15 C16 C17 R1 R2 R4 R5 RL1 RL2 L1 L2 L3 XTAL SAWFIL CERFIL CERDIS Standard FSK Component List Size 0805 0805 0603 0603 0603 0805 0603 0603 0805 0805 0603 0805 0805 0603 0603 0805 0805 0805 0603 0603 0603 SMD 6x3.5 SMD 3x3 SMD 3.45x3.1 SMD 4.5x2 Value @ 868.3 MHz 22 pF 1 nF 4.7 pF 2.7 pF 1.0 pF 33 nF 1 nF 1 nF 10 pF 100 pF 1.5 nF 10 nF 10 k 330 330 k 220 k 470 470 22 nH 22 nH 10 nH 26.80000 MHz @ RF = 868.3 MHz SAFCC868MSL0X00 (f0 =868.3 MHz) SFECF10M7HA00 CDSCB10M7GA135 Tolerance 5% 10% 5% 5% 5% 10% 10% 10% 5% 5% 10% 10% 5% 5% 5% 5% 5% 5% 5% 5% 5% 25ppm cal. 30ppm temp. B3dB = 2 MHz B3dB = 180 kHz crystal series capacitor loop filter capacitor Description capacitor to match SAW filter input capacitor to match SAW filter output MIX1 input matching capacitor IFA feedback capacitor IFA feedback capacitor IFA feedback capacitor DEMOD phase-shift capacitor demodulator output low-pass capacitor, this value for data rates < 20 kbps NRZ RSSI output low-pass capacitor data slicer capacitor, this value for data rates > 0.8 kbps NRZ loop filter resistor optional CERFIL output matching resistor data slicer resistor loading resistor MIX1 bias resistor MIX1 bias resistor SAW filter matching inductor from Wurth-Elektronik (WE-KI series), or equivalent part LNA output tank inductor from Wurth-Elektronik (WE-KI series), or equivalent part fundamental-mode crystal from Telcona/Horizon or equivalent par low-loss SAW filter from Murata, or equivalent part ceramic filter from Murata, or equivalent part ceramic discriminator from Murata, or equivalent part * For component values for other frequencies, please refer to the EVB descriptions 39010 71111 Rev. 013 Page 13 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 4.2 4.2.1 Narrow Band FSK Reception Narrow Band FSK Application Circuit OUTP C15 C16 R4 RSSI C17 FSK output VCC CP OUTP 23 RSSI 21 24 OAN 19 OAP 20 OUT_OA 18 VCC 17 VEE 22 XTAL C1 VCC 25 VEE 26 RO 27 VCC 28 ENRX 16 OUT_IFA 15 VCC 14 C12 CERDIS VCC ENRX C3 R1 29 LF 30 VEE TH71111 GAIN_LNA OUT_LNA IN_MIX1 FBC2 13 C11 C9 R2 C10 FBC1 12 IN_IFA 11 VEE 10 OUT_MIX2 9 IF1N VCC 31 IN_LNA IF1P VEE VEE L2 C5 VCC 32 VCC CERFIL 1 2 3 4 5 6 7 8 6 1 4 3 C7 SAWFIL RL1 RL2 CB* VCC 50 L1 C4 L3 RF input * each Vcc pin with blocking cap of 330pF * one global Vcc blocking cap of 33nF Fig. 3: Test circuit for FM reception Circuit Features * Applicable for narrow band FSK 39010 71111 Rev. 013 Page 14 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 4.2.2 Part C1 C3 C4 C5 C7 C9 C10 C11 C12 C15 C16 C17 CP R1 R2 R4 RL1 RL2 L1 L2 L3 XTAL SAWFIL CERFIL CERDIS Narrow Band FSK Component List Size 0805 0805 0603 0603 0603 0805 0603 0603 0805 0805 0603 0805 0603 0805 0603 0603 0805 0805 0603 0603 0603 SMD 6x3.5 SMD 3x3 Leaded type SMD 4.5x2 Value @ 868.3 MHz 22 pF 1 nF 4.7 pF 2.7 pF 1.0 pF 33 nF 1 nF 1 nF 1.5 pF 220 pF 1.5 nF 10 nF 6.8 - 8.2 pF 10 k 330 330 k 470 470 22 nH 22 nH 10 nH 26.80000 MHz @ RF = 868.3 MHz SAFCC868MSL0X00 (f0 =868.3 MHz) SFKLA10M7NL00 SFVLA10M7LF00 CDSCB10M7GA135 Tolerance 5% 10% 5% 5% 5% 10% 10% 10% 5% 5% 10% 10% 5% 5% 5% 5% 5% 5% 5% 5% 5% 25ppm cal. 30ppm temp. B3dB = 2 MHz B3dB = 30 kHz B3dB = 80 kHz crystal series capacitor loop filter capacitor Description capacitor to match SAW filter input capacitor to match SAW filter output MIX1 input matching capacitor IFA feedback capacitor IFA feedback capacitor IFA feedback capacitor DEMOD phase-shift capacitor demodulator output low-pass capacitor, this value for data rates < 10 kbps NRZ RSSI output low-pass capacitor data slicer capacitor, this value for data rates > 0.8 kbps NRZ ceramic resonator loading capacitor loop filter resistor optional CERFIL output matching resistor data slicer resistor, this value for 0.4 to 10 kbps NRZ MIX1 bias resistor MIX1 bias resistor SAW filter matching inductor from Wurth-Elektronik (WE-KI series), or equivalent part LNA output tank inductor from Wurth-Elektronik (WE-KI series), or equivalent part fundamental-mode crystal from Telcona/Horizon or equivalent par low-loss SAW filter from Murata, or equivalent part ceramic filter from Murata, or equivalent part optional, ceramic filter from Murata, or equivalent part ceramic discriminator from Murata, or equivalent part * For component values for other frequencies, please refer to the EVB descriptions 39010 71111 Rev. 013 Page 15 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 4.3 4.3.1 FM Reception (Varactor-tuned AFC) FM Application Circuit OUTP FM OUTN RSSI C15 C16 R4 R5 RSSI 21 OUTP 23 OAN 19 OAP 20 C14 C17 C18 R3 VCC CP 24 OUT_OA 18 VCC 17 VEE 22 VD XTAL C1 VCC 25 VEE 26 RO 27 VCC 28 ENRX 16 OUT_IFA 15 VCC 14 C12 CERDIS VCC ENRX C3 R1 29 LF 30 VEE TH71111 GAIN_LNA OUT_LNA IN_MIX1 FBC2 13 C11 C9 R2 C10 FBC1 12 IN_IFA 11 VEE 10 OUT_MIX2 9 IF1N VCC 31 IN_LNA IF1P VEE VEE L2 C5 VCC 32 VCC CERFIL 1 2 3 4 5 6 7 8 6 1 4 3 C7 SAWFIL RL1 RL2 CB* VCC 50 L1 C4 L3 RF input * each Vcc pin with blocking cap of 330pF * one global Vcc blocking cap of 33nF Fig. 4: Test circuit for FM reception Circuit Features * Tolerates input frequency variations * Applicable for FM 39010 71111 Rev. 013 Page 16 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 4.3.2 Part C1 C3 C4 C5 C7 C9 C10 C11 C12 C14 C15 C16 C17 C18 CP R1 R2 R3 R4 R5 RL1 RL2 L1 L2 L3 VD XTAL SAWFIL CERFIL CERDIS FM Component List Size 0805 0805 0603 0603 0603 0805 0603 0603 0805 0805 0805 0603 0805 0805 0805 0805 0603 0805 0603 0805 0805 0805 0603 0603 0603 SOD-323 SMD 6x3.5 SMD 3x3 SMD 3.45x3.1 SMD 4.5x2 Value @ 868.3 MHz 22 pF 1 nF 4.7 pF 2.7 pF 1.0 pF 33 nF 1 nF 1 nF 1.5 pF 1 nF 1 nF 1.5 nF 10 nF 33 nF 10 pF 10 k 330 100 k 680 k 680 k 470 470 22 nH 22 nH 10 nH BB535 26.80000 MHz @ RF = 868.3 MHz SAFCC868MSL0X00 (f0 =868.3 MHz) SFECF10M7HA00 CDSCB10M7GA135 Tolerance 5% 10% 5% 5% 5% 10% 10% 10% 5% 5% 5% 10% 10% 10% 5% 5% 5% 10% 5% 5% 5% 5% 5% 5% 5% crystal series capacitor loop filter capacitor Description capacitor to match SAW filter input capacitor to match SAW filter output MIX1 input matching capacitor IFA feedback capacitor IFA feedback capacitor IFA feedback capacitor DEMOD phase-shift capacitor demodulator output low-pass capacitor, this value for 0.5 to 2 kHz demodulator output low-pass capacitor this value for 0.5 to 2 kHz RSSI output low-pass capacitor integrator capacitor integrator capacitor, this value for 0.5 to 2 kHz ceramic resonator loading capacitor loop filter resistor optional CERFIL output matching resistor varactor diode biasing resistor integrator resistor integrator resistor MIX1 bias resistor MIX1 bias resistor SAW filter matching inductor from Wurth-Elektronik (WE-KI series), or equivalent part LNA output tank inductor from Wurth-Elektronik (WE-KI series), or equivalent part varactor diode from Infineon fundamental-mode crystal from Telcona/Horizon or equivalent par low-loss SAW filter from Murata, or equivalent part ceramic filter from Murata, or equivalent part ceramic discriminator from Murata, or equivalent part 25ppm cal. 30ppm temp. B3dB = 2 MHz B3dB = 180 kHz * For component values for other frequencies, please refer to the EVB descriptions 39010 71111 Rev. 013 Page 17 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 4.4 4.4.1 ASK Reception ASK Application Circuit RSSI C16 C17 ASK output R4 OUTP 23 RSSI 21 24 OAN 19 OAP 20 OUT_OA 18 VCC 17 VEE 22 VCC XTAL C1 VCC 25 VEE 26 RO 27 VCC 28 ENRX 16 OUT_IFA 15 VCC 14 VCC ENRX C3 R1 29 LF 30 VEE TH71111 GAIN_LNA OUT_LNA IN_MIX1 FBC2 13 C11 C9 R2 C10 FBC1 12 IN_IFA 11 VEE 10 OUT_MIX2 9 IF1N VCC 31 IN_LNA IF1P VEE VEE L2 C5 VCC 32 VCC CERFIL 1 2 3 4 5 6 7 8 6 1 4 3 C7 SAWFIL RL1 RL2 CB* VCC 50 L1 C4 L3 RF input * each Vcc pin with blocking cap of 330pF * one global Vcc blocking cap of 33nF Fig. 5: Test circuit for ASK reception 39010 71111 Rev. 013 Page 18 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 4.4.2 Part C1 C3 C4 C5 C7 C9 C10 C11 C16 ASK Component List Size 0805 0805 0603 0603 0603 0805 0603 0603 0603 Value @ 868.3 MHz 22 pF 1 nF 4.7 pF 2.7 pF 1.0 pF 33 nF 1 nF 1 nF 1.5 nF Tolerance 5% 10% 5% 5% 5% 10% 10% 10% 10% crystal series capacitor loop filter capacitor Description capacitor to match SAW filter input capacitor to match SAW filter output MIX1 input matching capacitor IFA feedback capacitor IFA feedback capacitor IFA feedback capacitor RSSI output low-pass capacitor, this value for data rates < 10 kbps NRZ, for higher data rates decrease the value data slicer capacitor, this value for data rates > 0.8 kbps NRZ, for lower data rates increase the value loop filter resistor optional CERFIL output matching resistor data slicer resistor MIX1 bias resistor MIX1 bias resistor SAW filter matching inductor from Wurth-Elektronik (WE-KI series), or equivalent part LNA output tank inductor from Wurth-Elektronik (WE-KI series), or equivalent part fundamental-mode crystal from Telcona/Horizon or equivalent par low-loss SAW filter from Murata, or equivalent part ceramic filter from Murata, or equivalent part optional, ceramic filter from Murata, or equivalent part C17 0805 10 nF 10% R1 R2 R4 RL1 RL2 L1 L2 L3 XTAL SAWFIL 0805 0603 0603 0805 0805 0603 0603 0603 SMD 6x3.5 SMD 3x3 SMD 3.45x3.1 Leaded type 10 k 330 330 k 470 470 22 nH 22 nH 10 nH 26.80000 MHz @ RF = 868.3 MHz SAFCC868MSL0X00 (f0 =868.3 MHz) SFECF10M7HA00 SFVLA10M7LF00 5% 5% 5% 5% 5% 5% 5% 5% 25ppm cal. 30ppm temp. B3dB = 2 MHz B3dB = 180 kHz B3dB = 80 kHz CERFIL * For component values for other frequencies, please refer to the EVB descriptions 39010 71111 Rev. 013 Page 19 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 5 Package Description The device TH71111 is RoHS compliant. D D1 24 25 A 17 16 b E E1 e 32 9 1 8 A2 A1 12 +1 c 0.25 (0.0098) 12 +1 L .10 (.004) Fig. 6: LQFP32 (Low profile Quad Flat Package) All Dimension in mm, coplanarity < 0.1mm E1, D1 min max min max 7.00 E, D 9.00 A 1.40 1.60 0.055 0.063 A1 0.05 0.15 0.002 0.006 A2 1.35 1.45 0.053 0.057 e 0.8 b 0.30 0.45 0.012 0.018 c 0.09 0.20 0.0035 0.0079 L 0.45 0.75 0.018 0.030 0 7 0 7 All Dimension in inch, coplanarity < 0.004" 0.276 0.354 0.031 5.1 Soldering Information * The device TH71111 is qualified for MSL3 with soldering peak temperature 260 deg C according to JEDEC J-STD-20 39010 71111 Rev. 013 Page 20 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 6 Reliability Information This Melexis device is classified and qualified regarding soldering technology, solderability and moisture sensitivity level, as defined in this specification, according to following test methods: Reflow Soldering SMD's (Surface Mount Devices) * * IPC/JEDEC J-STD-020 "Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices (classification reflow profiles according to table 5-2)" EIA/JEDEC JESD22-A113 "Preconditioning of Nonhermetic Surface Mount Devices Prior to Reliability Testing (reflow profiles according to table 2)" Wave Soldering SMD's (Surface Mount Devices) and THD's (Through Hole Devices) * * EN60749-20 "Resistance of plastic- encapsulated SMD's to combined effect of moisture and soldering heat" EIA/JEDEC JESD22-B106 and EN60749-15 "Resistance to soldering temperature for through-hole mounted devices" Iron Soldering THD's (Through Hole Devices) * EN60749-15 "Resistance to soldering temperature for through-hole mounted devices" Solderability SMD's (Surface Mount Devices) and THD's (Through Hole Devices) * EIA/JEDEC JESD22-B102 and EN60749-21 "Solderability" For all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperature gradient, temperature profile etc) additional classification and qualification tests have to be agreed upon with Melexis. The application of Wave Soldering for SMD's is allowed only after consulting Melexis regarding assurance of adhesive strength between device and board. Melexis is contributing to global environmental conservation by promoting lead free solutions. For more information on qualification of RoHS compliant products (RoHS = European directive on the Restriction Of the Use of Certain Hazardous Substances) please visit the quality page on our website: http://www.melexis.com/quality_leadfree.aspx 7 ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. 39010 71111 Rev. 013 Page 21 of 22 Data Sheet June/07 TH71111 868/915MHz FSK/FM/ASK Receiver 8 Disclaimer 1) The information included in this documentation is subject to Melexis intellectual and other property rights. Reproduction of information is permissible only if the information will not be altered and is accompanied by all associated conditions, limitations and notices. 2) Any use of the documentation without the prior written consent of Melexis other than the one set forth in clause 1 is an unfair and deceptive business practice. Melexis is not responsible or liable for such altered documentation. 3) The information furnished by Melexis in this documentation is provided 'as is'. Except as expressly warranted in any other applicable license agreement, Melexis disclaims all warranties either express, implied, statutory or otherwise including but not limited to the merchantability, fitness for a particular purpose, title and non-infringement with regard to the content of this documentation. 4) Notwithstanding the fact that Melexis endeavors to take care of the concept and content of this documentation, it may include technical or factual inaccuracies or typographical errors. Melexis disclaims any responsibility in connection herewith. 5) Melexis reserves the right to change the documentation, the specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with Melexis for current information. 6) Melexis shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the information in this documentation. 7) The product described in this documentation is intended for use in normal commercial applications. Applications requiring operation beyond ranges specified in this documentation, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by Melexis for each application. 8) Any supply of products by Melexis will be governed by the Melexis Terms of Sale, published on www.melexis.com. (c) Melexis NV. All rights reserved. For the latest version of this document, go to our website at: www.melexis.com Or for additional information contact Melexis Direct: Europe, Africa: Phone: +32 1367 0495 E-mail: sales_europe@melexis.com Americas: Phone: +1 603 223 2362 E-mail: sales_usa@melexis.com Asia: Phone: +32 1367 0495 E-mail: sales_asia@melexis.com ISO/TS 16949 and ISO14001 Certified 39010 71111 Rev. 013 Page 22 of 22 Data Sheet June/07 |
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