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TEA6842H Scheda tecnica(PDF) 6 Page - NXP Semiconductors |
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TEA6842H Scheda tecnica(HTML) 6 Page - NXP Semiconductors |
6 / 66 page 2003 Dec 19 6 Philips Semiconductors Product specification New In Car Entertainment (NICE) extended car radio TEA6842H 6 PINNING SYMBOL PIN DESCRIPTION FMLIMDEC 1 FM limiter decoupling FMLIMIN 2 FM limiter input (10.7 MHz) AMIF2DEC 3 decoupling for AM IF2 input IFAMP2OUT 4 IF amplifier 2 output (10.7 MHz) AMNBHOLD 5 AM noise blanker threshold AMIF2IN 6 AM IF2 input (450 kHz) for demodulator AGC and AM level detector IF1GND 7 AM IF1 ground IFAMP2IN 8 IF amplifier 2 input (10.7 MHz) Coffset 9 DC feedback for offset compensation RDS mute IMUTEREF 10 mute reference current output for testing IFAMP2DEC 11 IF amplifier 2 decoupling and AGC capacitor for AM noise blanker IFAMP1OUT 12 IF amplifier 1 output (10.7 MHz) n.c. 13 not connected IFAMP1IN 14 IF amplifier 1 and AM mixer 2 input (10.7 MHz) n.c. 15 not connected VDDA1 16 analog supply voltage 1 (8.5 V) for IF amplifier 1 and 2 IFAMP1DEC 17 AM mixer 2 and FM IF amplifier 1 decoupling MIX1OUT1 18 FM mixer and AM mixer 1 IF output 1 (10.7 MHz) MIX1OUT2 19 FM mixer and AM mixer 1 IF output 2 (10.7 MHz) VDDA2 20 analog supply voltage 2 (8.5 V) for FM mixer and AM mixer 1 AMAGCBUF 21 buffer output of AM AGC voltage AMMIX1IN2 22 AM mixer 1 input 2 AMMIX1IN1 23 AM mixer 1 input 1 n.c. 24 not connected n.c. 25 not connected T1AMAGC 26 1st time constant of AM front-end AGC T2AMAGC 27 2nd time constant of AM front-end AGC IAMAGC 28 PIN diode drive current output of AM front-end AGC Vref(FMMIX) 29 reference voltage for FM I/Q mixer FMMIXIN1 30 FM RF mixer input 1 RFGND 31 RF ground n.c. 32 not connected FMMIXIN2 33 FM RF mixer input 2 WBSW 34 buffered weather band flag output IFMAGC 35 PIN diode drive current output of FM front-end AGC T2FMAGC 36 2nd time constant of FM front-end AGC T1FMAGC 37 1st time constant of FM front-end AGC DAAOUT 38 output of digital auto alignment circuit for antenna tank circuit DAATD 39 temperature compensation diode for digital auto alignment circuit for antenna tank circuit DAAIN 40 input of digital auto alignment circuit for antenna tank circuit |
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