Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
6
PINNING
SYMBOL
PIN
DESCRIPTION
FMLIMDCFDB1
FMLIMDCFDB2
AMIF2DEC
IREFFMIF2
AMNBHOLD
AMIF2IN
1
decoupling in-phase FM limiter
2
decoupling quadrature phase FM limiter
decoupling for AM IF2 input
3
4
reference current for FM IF2
5
AM noise blanker threshold
6
AM IF2 input (450 kHz) for demodulator AGC and AM level detector
AM IF1 ground
IF1GND
7
FMMIX2IN
COFFSET
FMMIX2DEC
IFCDAATEST
IFAMPOUT
VDDA1
8
FM mixer 2 input
9
DC feedback for offset compensation RDS mute
FM mixer 2 decoupling
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
test pin for IF centre DAA
IF amplifier output (10.7 MHz)
analog supply voltage 1 (8.5 V) for FM IF amplifier
FM IF amplifier and AM mixer 2 input (10.7 MHz)
FM IF amplifier and AM mixer 2 decoupling
test output quadrature phase FM IF2 filter
test output in-phase FM IF2 filter
FM mixer and AM mixer 1 IF output 1 (10.7 MHz)
FM mixer and AM mixer 1 IF output 2 (10.7 MHz)
analog supply voltage 2 (8.5 V) for FM and AM RF
output software programmable flag
AM mixer 1 decoupling
IFAMPIN
IFAMPDEC
IF2FILQ
IF2FILI
MIX1OUT1
MIX1OUT2
VDDA2
SWFLAG
AMMIX1DEC
AMMIX1IN
VAMCASFB
VAMCAS
TAFAMAGC
THFAMAGC
IAMAGC
AM mixer 1 input
feedback for cascode AM AGC
cascode AM AGC
AF time constant of AM front-end AGC
HF time constant of AM front-end AGC
PIN diode drive current output of AM front-end AGC
reference voltage for FM RF mixer
FM RF mixer input 1
Vref(MIX)
FMMIXIN1
RFGND
RF ground
i.c.
internal connection
FMMIXIN2
WBFLAG
IFMAGC
FM RF mixer input 2
buffered weather band flag output
PIN diode drive current output of FM front-end AGC
time constant of FM front-end AGC
time constant of keyed FM front-end AGC
output of digital auto alignment circuit for antenna tank circuit
TFMAGC
TKEYEDAGC
DAAOUT
DAATD
temperature compensation diode for digital auto alignment circuit for antenna tank circuit
input of digital auto alignment circuit for antenna tank circuit
DAAIN
2004 Nov 12
6
NXP [ NXP ]
