TEA6840 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Lista de partido
TEA6840 Datasheet PDF : 44 Pages
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Philips Semiconductors
New In Car Entertainment (NICE) car radio
Preliminary specification
TEA6840H
SYMBOL
PIN
DESCRIPTION
IFAMP2DEC
41 2nd IF amplifier decoupling and AGC capacitor for AM noise blanker
Coffset
IFAMP2IN
42 DC feedback for offset compensation RDS mute
43 2nd IF amplifier (10.7 MHz) input
IF1GND
44 AM IF1 ground
AMIF2IN
45 AM IF2 (450 kHz) input for demodulator AGC and AM level detector
AMNBHOLD
46 AM noise blanker hold output
IFAMP2OUT
47 2nd IF amplifier (10.7 MHz) output
AMIF2DEC
48 decoupling for AM IF2 input
FMLIMIN
49 FM limiter (10.7 MHz) input
FMLIMDEC
50 FM limiter decoupling
CAGC
51 AMIFAGC capacitor
AMMIX2OUT1 52 2nd AM mixer (450 kHz) output 1
AMMIX2OUT2 53 2nd AM mixer (450 kHz) output 2
Iref
XTAL1
54 reference current for power supply
55 crystal oscillator 1
XTALGND
56 crystal oscillator ground
XTAL2
57 crystal oscillator 2
Vlevel
CAFC
QDET1
58 level voltage output for AM and FM
59 FM demodulator AFC capacitor
60 quadrature demodulator tank 1
QDET2
61 quadrature demodulator tank 2
IF2GND
SCL
SDA
62 AM IF2 ground
63 I2C-bus clock line input
64 I2C-bus data line input/output
1999 Jul 12
7
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