TDA7460N Datasheet, PDF (1/31 Pages) STMicroelectronics – CAR RADIO SIGNAL PROCESSOR

®
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 I²C 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 I²C 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 CDG CDR
5
4
3
8
AM
1
CASS R
2
CASS L
PHONE ⁷
(MPIN)
PHONE GND ⁶
(MPOUT)
MIXING
STAGE
INPUT
MULTIPLEXER
+
AUTO ZERO
PHONE
BEEP
FM R
FM L
LOUDNESS
VOLUME
9
MPX
80KHz
LP
PILOT
CANCELLATION
DEMODULATOR
+ STEREO ADJUST
+ STEREO BLEND
SMUTE
11
SOFT
MUTE
TREBLE
DIGITAL CONTROL
25KHz
LP
S&H
BASS
17
OUT LR
19
OUT LF
16
OUT RR
18
OUT RF
OUT LR
OUT LF
OUT RR
OUT RF
I²C BUS
12
SCL
13
SDA
HIGH
CUT
CONTROL
15
V_S
SUPPLY
14 20
GND CREF
PLL
PIL
DET
MULTIPATH-
DETECTOR
NOISE
BLANKER
PULSE
FORMER
D
A
10
LEVEL
D97AU629A
June 2000
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