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TDA7442 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. TDA7442
Description  TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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TDA7442 Datasheet(HTML) 4 Page - STMicroelectronics

 
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TDA7442 - TDA7442D
4/17
TREBLE CONTROL
Gt
Control Range
Max. Boost/cut
+13.0
+14.0
+15.0
dB
TSTEP
Step Resolution
1
2
3
dB
EFFECT CONTROL
CRANGE
Control Range
- 21
- 6
dB
SSTEP
Step Resolution
0.5
1
1.5
dB
SURROUND SOUND MATRIX PHASE
RPS10
Phase Shifter 1: D1 = 0, D0 = 0
8.3
11.8
15.2
K
RPS11
Phase Shifter 1: D1 = 0, D0 = 1
10
14.1
18.3
K
RPS12
Phase Shifter 1: D1 = 1, D0 = 0
12.6
17.9
23.3
K
RPS13
Phase Shifter 1: D1 = 1, D0 = 1
26.4
37.3
48.85
K
SURROUND SOUND MATRIX
TEST CONDITION (Phase Resistor Selection D0=0, D1=1, D2=0. D3=1, D4=0, D5=1, D6=0, D7=1
GOFF
In-phase Gain (OFF)
Mode OFF, Input signal of
1kHz, 1.4 Vp-p, Rin → Rout Lin
Lout
-1
0
1
dB
DGOFF
LR In-phase Gain Difference
(OFF)
Mode OFF, Input signal of 1kHz,
1.4 Vp-p Rin → Rout, Lin → Lout
-1
0
1
dB
GMUS
In-phase Gain (Music)
Music mode, Effect Ctrl = -6dB
Input signal of 1kHz, 1.4 Vp-p (Rin
→ Rout), (Lin → Lout)
7dB
DGMUS
LR In-phase Gain Difference
(Music)
Music mode, Effect Ctrl = -6dB
Input signal of 1kHz, 1.4 Vp-p (Rin
→ Rout) - (Lin → Lout)
0dB
SPEAKER ATTENUATORS
Crange
Control Range
79
dB
SSTEP
Step Resolution
-0.5
1
1.5
dB
EA
Attenuation set error
Av = 0 to -20dB
-1.5
0
1.5
dB
Av = -20 to -79dB
-3
0
2
dB
VDC
DC Steps
adjacent att. steps
-3
0
3
mV
AMUTE
Output Mute Condition
+70
100
dB
RVEA
Input Impedance
21
30
39
K
AUDIO OUTPUTS
NO(OFF)
Output Noise (OFF)
Output Mute, Flat
BW = 20Hz to 20KHz
4
5
µVrms
µVrms
NO(MUS)
Output Noise (Music)
Mode = Music ,
BW = 20Hz to 20KHz,
30
mVrms
NO(PSEUDO) Output Noise (Pseudo Stereo) Mode = Pseudo Stereo
BW = 20Hz to 20KHz,
30
mVrms
d
Distorsion
Av = 0 ; Vin = 1Vrms
0.01
0.1
%
SC
Channel Separation
70
90
dB
VOCL
Clipping Level
d = 0.3%
2
2.5
Vrms
ROUT
Output Resistance
10
30
50
Table 5. Electrical Characteristics (continued)
Refer to the test circuit Tamb = 25°C, VS = 9V, RL = 10KΩ, Vin = 1Vrms; RG = 600Ω, all controls flat (G =
0dB), Effect Ctrl = -6dB, MODE = OFF; f = 1KHz unless otherwise specified.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit


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