Philips CEM5000/00 Service Manual page 32

1 FEATURES
4 STEREO INPUTS
■
SOFT STEP VOLUME
■
BASS, MIDDLE, TREBLE AND LOUDNESS
■
DIRECT MUTE AND SOFTMUTE
■
FOUR INDEPENDENT SPEAKER OUTPUTS
■
SUB WOOFER OUTPUT
■
SOFT STEP SPEAKER/SUBWOOFER
■
CONTROL
7 BANDS SPECTRUM ANALYZER
■
DIGITAL CONTROL:
■
2
– I C-BUS INTERFACE
2 DESCRIPTION
The TDA7419 is a high performance signal proces-
sor specifically designed for car radio applications.
The device includes a high performance audiopro-
Figure 2. Block Diagram
SAOUT SAOUT
Spectrum Spectrum
Analyzer Analyzer
DIFFL DIFFL
DIFFG DIFFG
InGain InGain
DIFFR DIFFR
AutoZero AutoZero
SE1L SE1L
INPUT INPUT
SE1R SE1R
MULTIPLEXER MULTIPLEXER
SE2L SE2L
SE2R SE2R
SUPPLY SUPPLY
VDD VDD GND GND CREF CREF
VREFOUTF VREFOUTF
November 2004
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
SACLK SACLK MUTE MUTE
Softstep Softstep
Loudness Loudness SoftMute SoftMute
Volume Volume
DIGITAL CONTROL DIGITAL CONTROL DIGITAL CONTROL
SCL SCL
3 BAND CAR AUDIO PROCESSOR
Figure 1. Package
Table 1. Order Codes
Part Number
TDA7419
TDA7419TR
cessor with fully integrated audio filters. The digital
control allows programming in a wide range of filter
characteristics. By the use of BICMOS-process and
linear signal processing low distortion and low noise
are obtained.
ACOUTL/ ACOUTL/ ACOUTR/ ACOUTR/
AC2OUTL AC2OUTL AC2OUTR AC2OUTR
Treble Treble Middle Middle Bass Bass
Subwoofer Subwoofer
LPF LPF
2 2 2
I I I C BUS C BUS C BUS
AC2INL/ AC2INL/
SDA SDA
SE3L SE3L
TDA7419
PRELIMINARY DATA
SO-28
SO-28 in Tape & Reel
ACINL/ ACINL/ ACINR/ ACINR/
FILOL FILOL FILOR FILOR
Softstep Softstep
HPF HPF
MonoFader MonoFader
Softstep Softstep HPF HPF
MonoFader MonoFader
Softstep Softstep
MonoFader MonoFader
Softstep Softstep
MonoFader MonoFader
Softstep Softstep
MonoFader MonoFader
Softstep Softstep
MonoFader MonoFader
AC2INR/ AC2INR/
SE3R SE3R
Package
SO-28
OUTLF OUTLF
Mix Mix
Mix Mix OUTRF OUTRF
OUTLR OUTLR
OUTRR OUTRR
OUTSW/ OUTSW/
OUTLR2 OUTLR2
MIX/ MIX/
OUTSW/ OUTSW/
OUTRR2 OUTRR2
Rev. 1
1/30