PDF TH71102 Data sheet ( Hoja de datos )

Número de pieza	TH71102
Descripción	FSK/FM/ASK Receiver
Fabricantes	ETC
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No Preview Available ! TH71102 315/433MHz FSK/FM/ASK Receiver Features ! Double superhet architecture for high degree of image rejection ! FSK for digital data and FM reception for analog signal transmission ! FM/FSK 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 ! Surface mount package LQFP32 Ordering Information Part No. TH71102 Temperature Range -40 °C to 85°C Package LQFP32 Application Examples ! General digital and analog 315 MHz or 433 MHz ISM band usage ! Low-power telemetry ! Alarm and security systems ! Keyless car and central locking ! Pagers Technical Data Overview ! Input frequency range: 300 MHz to 450 MHz ! Power supply range: 2.5 V to 5.5 V ! Temperature range: -40 °C to +85 °C ! Operating current: 6.5 mA at low gain and 8.2 mA at high gain mode ! Standby current: < 100 nA ! Sensitivity: -111 dBm 1) with 40 kHz second IF filter BW (incl. SAW front-end filter loss) ! Sensitivity: -104 dBm 2) with 150 kHz second IF filter BW (incl. SAW front-end filter loss) ! Range of first IF: 10 MHz to 80 MHz ! Range of second IF: 455 kHz to 21.4 MHz ! Maximum input level: –10 dBm at ASK and 0 dBm at FSK ! Image rejection: > 65 dB (e.g. with SAW front-end filter and at 10.7 MHz 2nd IF) ! Spurious emission: < -70 dBm ! Input frequency acceptance: ±50 kHz (with AFC option) ! RSSI range: 70 dB ! Frequency deviation range: ±5 kHz to ±120 kHz ! Maximum data rate: 80 kbit/s NRZ ! Maximum analog modulation frequency: 15 kHz 1) at ± 8 kHz FSK deviation, BER = 3⋅10-3 and phase-coincidence demodulation 2) at ± 50 kHz FSK deviation, BER = 3⋅10-3 and phase-coincidence demodulation TH71102 Data Sheet 3901071102 Page 1 of 20 Nov. 2001 Rev. 005 1 page TH71102 315/433MHz FSK/FM/ASK Receiver Pin Definition and Description Pin No. Name 3 OUT_LNA I/O Type analog output Functional Schematic OUT_LNA 3 31 IN_LNA analog input 1 VEE_LNAC ground IN_LNA 31 5k VEE_LNAC 1 2 GAIN_LNA analog input GAIN_LNA 2 400Ω Description LNA open-collector output, to be connected to external LC tank that resonates at RF LNA input, approx. 26Ω single-ended ground of LNA core (cascode) LNA gain control (CMOS input with hysteresis) 4 IN_MIX1 analog input 5 VEE_MIX ground IN_MIX1 4 MIX1 input, approx. 33Ω 13Ω single-ended 13Ω 500µA LNA biasing ground 6 IF1P analog I/O IF1P 6 VCC 20p 20p open-collector output, to be IF1N connected to external LC tank that resonates at first IF 7 7 IF1N analog I/O VEE 2x500µA VEE open-collector output, to be connected to external LC tank that resonates at first IF 8 VCC_MIX supply MIX1 and MIX2 positive supply 9 OUT_MIX2 analog output MIX2 output, approx. 330Ω 6.8k output impedance OUT_MIX2 130Ω 9 230µA 10 VEE_IF ground ground for MIX2, IFA and DEMOD TH71102 Data Sheet 3901071102 Page 5 of 20 Nov. 2001 Rev. 005 5 Page TH71102 315/433MHz FSK/FM/ASK Receiver FSK test circuit component list to Fig. 2 Part C1 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 CP C14 C15 C16 R1 L1 L2 L3 L4 L5 XTAL SAWFIL Size 0805 0805 0603 0603 0603 0603 0603 0805 0603 0603 0603 0603 0805 0805 0805 0603 0805 0603 0603 0603 0805 0805 HC49 SMD QCC8C Value / Type 15 pF 1 nF 3.3 pF 3.3 pF 4.7 pf 2.2 pf 27 pF 33 nF 1 nF 1 nF 1.5 pF 680 pF 10 – 12 pF 10 – 47 pF 10 – 47 pF 330 pF 10 kΩ 33 nH 33 nH 15 nH 100 nH 100 nH 23.49444 MHz @ RF = 433.6 MHz B3555 @ RF = 433.6 MHz Tolerance Description ±10% ±10% ±5% ±5% ±5% ±5% ±5% ±10% ±10% ±10% ±5% ±10% ±5% ±5% ±5% ±10% ±10% ±5% ±5% ±5% ±5% ±5% ±25ppm calibra- tion ±30ppm temp. crystal series capacitor loop filter capacitor capacitor to match to SAW filter input capacitor to match to SAW filter output LNA output tank capacitor MIX1 input matching capacitor IF1 tank capacitor IFA feedback capacitor IFA feedback capacitor IFA feedback capacitor DEMOD phase-shift capacitor DEMOD coupling capacitor CERRES parallel capacitor demodulator output low-pass capacitor, depending on data rate demodulator output low-pass capacitor, depending on data rate RSSI output low-pass capacitor loop filter resistor inductor to match SAW filter inductor to match SAW filter LNA output tank inductor IF1 tank inductor IF1 tank inductor fundamental-mode crystal, Cload = 10 pF to 15pF, C0, max = 7 pF, Rm, max = 50 Ω B3dB = 860 kHz low-loss SAW filter from EPCOS ±100 kHz (f0 = 433.92 MHz) CERFIL CERRES leaded type SMD type SMD type SFE10.7MFP @ BIF2 = 40 kHz SFECV10.7MJS-A @ BIF2 = 150 kHz CDACV10.7MG18-A TBD ±40 kHz NIP – not in place, may be used optionally ceramic filter from Murata ceramic demodulator tank from Murata TH71102 Data Sheet 3901071102 Page 11 of 20 Nov. 2001 Rev. 005 11 Page

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