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PDF TDA7343 Data sheet ( Hoja de datos )

Número de pieza TDA7343
Descripción DIGITALLY CONTROLLED AUDIO PROCESSOR
Fabricantes ST Microelectronics 
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No Preview Available ! TDA7343 Hoja de datos, Descripción, Manual

® TDA7343
DIGITALLY CONTROLLED AUDIO PROCESSOR
INPUT MULTIPLEXER
- TWO STEREO AND ONE MONO INPUTS
- SELECTABLE INPUT GAIN FOR OPTIMAL
ADAPTATION TO DIFFERENT SOURCES
FULLY PROGRAMMABLE LOUDNESS
FUNCTION
VOLUME CONTROL IN 0.3dB STEPS IN-
CLUDING GAIN UP TO 20dB
ZERO CROSSING MUTE AND DIRECT
MUTE
SOFT MUTE CONTROLLED BY SOFTWARE
OR HARDWARE PIN
BASS AND TREBLE CONTROL
FOUR SPEAKER ATTENUATORS
- FOUR INDEPENDENT SPEAKERS
CONTROL IN 1.25dB STEPS FOR
BALANCE AND FADER FACILITIES
- INDEPENDENT MUTE FUNCTION
ALL FUNCTIONS PROGRAMMABLE VIA SE-
RIAL I2 CBUS
DESCRIPTION
The TDA7343 is an upgrade of the TDA7313
audioprocessor.
Thanks to the used BIPOLAR/CMOS technology,
very low distortion, low noise and DC-stepping
are obtained.
Due to a highly linear signal processing, using
DIP28
SO28
ORDERING NUMBER: TDA7343 (DIP28)
TDA7343D (SO28)
CMOS-switching techniques instead of standard
bipolar multipliers, very low distortion and very
low noise are obtained Several new features like
softmute, zero-crossing mute and pause detector
are implemented.
The Soft Mute function can be activated in two
ways:
1 Via serial bus (bit D0, Mute Byte)
2 Directly on pin 22 through an I/O line of the
microcontroller
Very low DC stepping is obtained by use of a
BICMOS technology.
November 1999
1/14

1 page




TDA7343 pdf
TDA7343
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
BASS CONTROL
BBOOST
BCUT
Max Bass Boost
Max Bass Cut
Astep
Step Resolution
Rg Internal Feedback Resistance
TREBLE CONTROL
CRANGE Control Range
Astep
Step Resolution
SPEAKER ATTENUATORS
CRANGE Control Range
Astep
Step Resolution
AMUTE
Output Mute Attenuation
EA Attenuation Set Error
VDC DC Steps
AUDIO OUTPUT
Vclip Clipping Level
RL Output Load Resistance
RO Output Impedance
VDC DC Voltage Level
GENERAL
VCC Supply Voltage
ICC Supply Current
PSRR Power Supply Rejection Ratio
eNO Output Noise
Et Total Tracking Error
S/N Signal to Noise Ratio
SC Channel Separation
d Distortion
BUS INPUTS
VIL Input Low Voltage
VlN Input High Voltage
IlN Input Current
VO Output Voltage SDA
Acknowledge
Test Condition
Min.
15
-8.5
1
45
±13
1
Data Word = XXX11111
Adjacent Attenuation Steps
35
0.5
80
d = 0.3%
2.1
2
3.5
f = 1KHz
B = 20 to 20kHz ”A” weighted
Output Muted (B = 20 to 20kHz flat)
All Gains 0dB (B = 20 to 20kHz flat)
AV = 0 to -20dB
AV = -20 to -60dB
All Gains = 0dB; VO = 1Vrms
Vin = 1V
6
5
60
80
VIN = 0.4V
IO = 1.6mA
3
-5
Note 1: WIN represents the MUTE programming bit pair D6, D5 for the zero crossing window threshold
Note 2: Internal pullup resistor to Vs/2; ”LOW” = softmute active
Typ.
18
-10
2
65
±14
2
37.5
1.25
100
0
2.6
30
3.8
9
10
80
65
2.5
5
0
0
106
100
0.01
0.4
Max. Unit
20
-11.5
3
85
dB
dB
dB
K
±15 dB
3 dB
40
2.0
1.25
3
dB
dB
dB
dB
mV
Vrms
K
100
4.1 V
10.2 V
15 mA
dB
dB
µV
15 µV
1 dB
2 dB
dB
dB
0.08 %
1V
V
5 µA
0.8 V
5/14

5 Page





TDA7343 arduino
TDA7343
Volume
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
FUNCTION
0.31dB Fine Attenuation Steps
00
0dB
01
-0.31dB
10
-0.62dB
11
-0.94dB
1.25dB Coarse Attenuation Steps
000
0dB
001
-1.25dB
010
-2.5dB
011
-3.75dB
100
-5dB
101
-6.25dB
110
-7.5dB
111
-8.75dB
10dB Gain / Attenuation Steps
000
20dB
001
10dB
010
0dB
011
-10dB
100
-20dB
101
-30dB
110
-40dB
111
-50dB
For example to select -47.81dB Volume the Data Byte is: 1 1 0 1 1 0 0 1
Power on RESET: All Bytes Set to 1 1 1 1 1 1 1 0
Purchase of I2C Components of STMicrolectronics, conveys a license under the Philips I2C Patent
Rights to use these components in an I2C system, provided that the system conforms to the I2C
Standard Specifications as defined by Philips.
11/14

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