TEA6846 Просмотр технического описания (PDF) - Philips Electronics
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TEA6846 Datasheet PDF : 44 Pages
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Philips Semiconductors
New In Car Entertainment (NICE) car radio
Product specification
TEA6846H
6 PINNING
SYMBOL
FMLIMDEC
FMLIMIN
AMIF2DEC
IFAMP2OUT
AMNBHOLD
AMIF2IN
IF1GND
IFAMP2IN
Coffset
n.c.
IFAMP2DEC
IFAMP1OUT
n.c.
IFAMP1IN
n.c.
VDDA6
IFAMP1DEC
MIX1OUT1
MIX1OUT2
VDDA5
n.c.
AMMIX1IN2
AMMIX1IN1
n.c.
n.c.
T1AMAGC
T2AMAGC
IAMAGC
Vref(FMMIX)
FMMIXIN1
RFGND
n.c.
FMMIXIN2
n.c.
IFMAGC
T2FMAGC
T1FMAGC
DAAOUT
DAATD
DAAIN
2001 Apr 12
PIN
DESCRIPTION
1 FM limiter decoupling
2 FM limiter input (10.7 MHz)
3 decoupling for AM IF2 input
4 IF amplifier 2 output (10.7 MHz)
5 AM noise blanker hold output
6 AM IF2 input (450 kHz) for demodulator AGC and AM level detector
7 AM IF1 ground
8 IF amplifier 2 input (10.7 MHz)
9 DC feedback for offset compensation RDS mute
10 not connected
11 IF amplifier 2 decoupling and AGC capacitor for AM noise blanker
12 IF amplifier 1 output (10.7 MHz)
13 not connected
14 IF amplifier 1 and AM mixer 2 input (10.7 MHz)
15 not connected
16 analog supply voltage 6 (8.5 V) for IF amplifier 1 and 2
17 AM mixer 2 and FM IF amplifier 1 decoupling
18 FM mixer and AM mixer 1 IF output high (10.7 MHz)
19 FM mixer and AM mixer 1 IF output low (10.7 MHz)
20 analog supply voltage 5 (8.5 V) for FM mixer and AM mixer 1
21 not connected
22 AM mixer 1 input 2
23 AM mixer 1 input 1
24 not connected
25 not connected
26 1st time constant output of AM front-end AGC
27 2nd time constant of AM front-end AGC
28 PIN diode drive current output of AM front-end AGC
29 reference voltage for FM mixer
30 input 1 of FM RF mixer
31 RF ground
32 not connected
33 input 2 of FM RF mixer
34 not connected
35 PIN diode drive current output of FM front-end AGC
36 2nd time constant of FM front-end AGC
37 1st time constant of FM front-end AGC
38 output of digital alignment circuit for antenna tank circuit
39 temperature compensation diode of digital auto alignment circuit for antenna tank circuit
40 input of digital auto alignment circuit for antenna tank circuit
6
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