Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
SYMBOL
PIN
DESCRIPTION
i.c.
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internal connection
tuning voltage
Vtune
CPOUT
VDDA3
charge pump output
analog supply voltage 3 (8.5 V) for tuning PLL
reference frequency output for signal processor IC
digital supply voltage (5 V)
FREF
VDDD
DGND
digital ground
VCOGND
OSCFDB
OSCTNK
VDDA4
VCO ground
VCO feedback
VCO tank circuit
analog supply voltage 4 (8.5 V) for VCO
DC feedback for FM MPX signal path
AF sample flag output for car audio signal processor IC
AF hold flag output for car audio signal processor IC
time constant for RDS update mute
AM demodulator AF output or IF2 output for AM stereo (multiplexed by I2C-bus)
MPX output for RDS decoder and signal processor (not muted)
FM demodulator MPX output
MPXDCFDB
AFSAMPLE
AFHOLD
TRDSMUTE
AMAFIF2
RDSMPX
FMMPX
VDDA5
analog supply voltage 5 (5 V) for on-chip power supply
modulation detector input
MODDET
VDDA6
analog supply voltage 6 (8.5 V) for on-chip power supply
IFBWFLAG
SDA
FM IF2 bandwidth flag output
I2C-bus data line input and output
I2C-bus clock line input
SCL
VIFBW
monitor voltage for FM IF2 bandwidth
AM IF2 ground
IF2GND
CINT
demodulator loop filter
MODETOUT
TACD
modulation detector output
adjacent channel detector time constant
level voltage output for AM and FM
crystal oscillator 1
Vlevel(AMFM)
XTAL1
XTALGND
XTAL2
crystal oscillator ground
crystal oscillator 2
Vlevel(ACD)
ACDTHRES
IREF
level voltage output for adjacent channel detector
adjacent channel detector threshold
reference current for power supply
AM mixer 2 output 1 (450 kHz)
AMMIX2OUT1
AMMIX2OUT2
CAGC
AM mixer 2 output 2 (450 kHz)
AM IF AGC capacitor/offset detector alignment (FM)
limiter reference voltage
Vref(lim)
2004 Nov 12
7
NXP [ NXP ]
