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TDA7460N
CAR RADIO SIGNAL PROCESSOR
DEVICE INCLUDES AUDIO PROCESSOR,
STEREO DECODER, NOISEBLANKER AND
MULTIPATH DETECTOR
HIGH PERFORMANCE SIGNAL PROCES-
SOR
NO EXTERNAL COMPONENTS REQUIRED
FULLY PROGRAMMABLE VIA I
2
C BUS
LOW DISTORTION
LOW NOISE
DESCRIPTION
The TDA7460N is a high performance signal
processor specifically designed for car radio ap-
plications.
The device includes a complete audioprocessor
and a stereo decoder with noiseblanker,
stereoblend and all signal processing functions
necessary for state-of-the-art as well as future car
radio systems.
Switched-capacitors design technique allows to
obtain all these features without external compo-
BLOCK DIAGRAM
SO20
ORDERING NUMBER:
TDA7460ND
nents or adjustments. This means that higher
quality and reliability walks alongside an overall
cost saving.
The CSP is fully programmable by I
2
C bus inter-
face allowing to customize key device parameters
and especially filter characteristics.
The BICMOS process combined with the opti-
mized signal processing assure low noise and
low distortion performances.
CDL
5
8
CDG
4
CDR
3
MIXING
STAGE
SMUTE
11
SOFT
MUTE
OUT LR
TREBLE
BASS
OUT LF
OUT RR
OUT RF
17
19
16
18
OUT LR
OUT LF
OUT RR
OUT RF
AM
LOUDNESS
VOLUME
CASS R
CASS L
PHONE
(MPIN)
PHONE GND
(MPOUT)
1
2
INPUT
MULTIPLEXER
+
AUTO ZERO
PHONE
BEEP
DIGITAL CONTROL
12
I
2
C BUS
13
7
SCL
SDA
6
FM R
FM L
MPX
9
80KHz
LP
PILOT
CANCELLATION
DEMODULATOR
+ STEREO ADJUST
+ STEREO BLEND
25KHz
LP
S&H
HIGH
CUT
CONTROL
V
S
15
SUPPLY
PLL
PIL
DET
D
MULTIPATH-
DETECTOR
NOISE
BLANKER
PULSE
FORMER
A
10
LEVEL
D97AU629A
14
GND
20
CREF
June 2000
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