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What is TDA7468?

This electronic component, produced by the manufacturer "STMicroelectronics", performs the same function as "TWO BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR".


TDA7468 Datasheet PDF - STMicroelectronics

Part Number TDA7468
Description TWO BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR
Manufacturers STMicroelectronics 
Logo STMicroelectronics Logo 


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TDA7468
TWO BANDS DIGITALLY CONTROLLED
AUDIO PROCESSOR WITH BASS ALC SURROUND
1 FEATURES
„ INPUT MULTIPLEXER
– 4 STEREO INPUTS
– SELECTABLE INPUT GAIN FOR OPTIMAL
ADAPTATION TO DIFFERENT SOURCES
„ ONE STEREO OUTPUT
„ BASS ALC
„ TREBLE AND BASS CONTROL IN 2.0dB
„ STEPS
„ VOLUME CONTROL IN 1.0dB STEPS
„ TWO SPEAKER ATTENUATORS:
– TWO INDEPENDENT SPEAKER CONTROL
IN 1.0dB STEPS FOR BALANCE FACILITY
– INDEPENDENT MUTE FUNCTION
„ ALL FUNCTION ARE PROGRAMMABLE VIA
„ SERIAL BUS
„ EXTERNALLY ADJUSTABLE SURROUND
2 DESCRIPTION
The TDA7468D is a volume tone (bass and treble)
balance (Left/Right) processor for quality audio
Figure 1. Package
SO28
Table 1. Order Codes
Part Number
TDA7468D
TDA7468D13TR
Package
SO28
Tape & Reel
applications in Hi-Fi systems.
Selectable input gain is provided. Control of all the
functions is accomplished by serial bus.
The AC signal setting is obtained by resistor net-
works and switches combined with operational
amplifiers.
Thanks to the used BIPOLAR/CMOS Technology,
Low Distortion, Low Noise and DC stepping are
obtained
Figure 2. PIN CONNECTION (Top view)
April 2010
VS
MIC
IN1_L
IN2_L
IN3_L
IN4_L
MUX_L
IS_L
TREBLE_L
BASSI_L
BASSO_L
OUT_L
DGND
SCL
1 28
2 27
3 26
4 25
5 24
6 23
7 22
8 21
9 20
10 19
11 18
12 17
13 16
14 15
D99AU1057
GND
CREF
IN1_R
IN2_R
IN3_R
IN4_R
MUX_R
IS_R
TREBLE_R
BASSI_R
BASSO_R
OUT_R
ALC
SDA
Rev. 4
1/23

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TDA7468 equivalent
TDA7468
ELECTRICAL CHARACTERISTICS (continua)
(refer to the test circuit Tamb = 25°C, VS = 9V, f = 1KHz all controls flat (G = 0dB), unless otherwise
specified)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
BASS CONTROL
Gb Control Range
Max. Boost/cut
±12.0 ±14.0 ±16.0 dB
BSTEP Step Resolution
RB Internal Feedback Resistance
BASS ALC CONTROL
1 2 3 dB
33 44 55 K
Rattack1
Rattack2
Rattack3
Rattack4
Thresh1
Attack Time Resistor 1
Attack Time Resistor 2
Attack Time Resistor 3
Attack Time Resistor 4
Threshold 1
12.5
25
50
100
700
K
K
K
K
mVrms
Thresh2 Threshold 2
485 mVrms
Thresh3 Threshold 3
320 mVrms
Thresh4 Threshold 4
170 mVrms
TREBLE CONTROL
Gt Control Range
Max. Boost/cut
+13.0 +14.0 +15.0 dB
TSTEP Step Resolution
Rt Internal Resistance
AUDIO OUTPUTS
1 2 3 dB
25 K
VOCL Clipping Level
RL Output Load Resistance
VOUT DC Voltage Level
GENERAL
THD = 0.3%
2 2.5
2
4.5
Vrms
K
V
ENO Output Noise
BW = 20Hz to 20KHz;
All gains 0dB;
output muted
5 µV
flat 10 15 µV
S/N Signal to Noise Ratio
SC Channel Separation Left/Right
d Distortion
SC Channel Separation left/right
Total Tracking Error
All gains 0dB; VO = 1Vrms ;
AV = 0; VI = 0.1Vrms ;
AV = 0; VI = 1Vrms ;
100
90
0.1
0.01
90
01
dB
dB
%
%
dB
dB
BUS INPUT
VIL Input Low Voltage
VIH Input High Voltage
IIN Input Current
VO Output Voltage (ACK)
VIN = 0.4V
IO = 1.6mA
1V
2.5 V
-5 5 µA
0.4 0.8
V
5/23


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On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for TDA7468 electronic component.


Information Total 23 Pages
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