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TDA7345 Datasheet(PDF) 6 Page - STMicroelectronics

Part No. TDA7345
Description  DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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TDA7345 Datasheet(HTML) 6 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
SPEAKER ATTENUATORS (REC_OUT_L, REC_OUT_R)
Crange
Control Range
35
37.5
40
dB
SSTEP
Step Resolution
0.5
1.25
1.75
dB
EA
Attenuation set error
-1.5
1.5
dB
AMUTE
Output Mute Attenuation
80
90
dB
VDC
DC Steps
adjacent att. steps
-3
0
3
mV
SPEAKER ATTENUATORS (LOUT, ROUT)
Crange
Control Range
70
75
dB
SSTEP
Step Resolution
Av = 0 to -40dB
0.5
1.25
1.75
dB
EA
Attenuation set error
Av = 0 to 20dB
-1.5
0
1.5
dB
Av = -20 to -60dB
-3
0
2
dB
VDC
DC Steps
adjacent att. steps
-3
0
3
mV
AMUTE
Output Mute Attenuation
80
90
dB
AUDIO OUTPUTS (LOUT, ROUT, REC_OUT_L, REC_OUT_R)
VOCL
Clipping Level
d = 0.3%
2
2.5
Vrms
ROUT
Output resistance
100
200
300
VOUT
DC Voltage Level
4.2
4.5
4.8
V
GENERAL
NO(OFF)
Output Noise (OFF)
BW = 20Hz to 20KHz
Output LOUT, ROUT,
Output: REC-OUT-L,
REC-OUT-R
8
8
15
15
µVrms
µVrms
NO(MOV)
Output Noise (Movie)
Mode =Movie ,
BW = 20Hz to 20KHz
Rout and Lout measurement
30
µVrms
NO(MUS)
Output Noise (Music)
Mode = Music ,
BW = 20Hz to 20KHz,
Rout and Lout measurement
30
µVrms
NO(MON)
Output Noise (Simulated)
Mode = Simulated,
BW = 20Hz to 20KHz
Rout and Lout measurement
30
µVrms
d
Distorsion
Av = 0 ; Vin = 1Vrms
0.02
0.1
%
SC
Channel Separation
60
70
dB
BUS INPUTS
VIL
Input Low Voltage
1V
VIH
Input High Voltage
3
V
IIN
Input Current
-5
+5
µA
VO
Output Voltage SDA
Acknowledge
IO = 1.6mA
0.4
0.8
V
Note:
(1) Bass and Treble response: The center frequency and the resonance quality can be choosen by
the external circuitry. A standard first order bass response can be realized by a standard feedback network.
(2) The peack voltage of the two input signals must be less then
VS
2
:
(Lin + Rin) peak
• AVin <
VS
2
TDA7345
6/18


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