TDA7344 Datasheet, PDF (4/20 Pages) STMicroelectronics – DIGITAL CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX

TDA7344
ELECTRICAL CHARACTERISTICS (refer to the test circuit T_amb = 25°C, V_S = 9V, R_L = 10KΩ,
RG = 600Ω, all controls flat (G = 0),Effect Ctrl = -6dB, MODE = OFF; f = 1KHz
unless otherwise specified)
Symbol
SUPPLY
Parameter
Test Condition
Min. Typ. Max. Unit
VS
I_S
SVR
Supply Voltage
Supply Current
Ripple Rejection
INPUT STAGE
LCH / RCH out, Mode = OFF
7
9
10.5
V
20
25
35
mA
60
80
dB
R_II
Input Resistance
VCL
Clipping Level
C_RANGE Control Range
A_VMIN
Min. Attenuation
A_VMAX
A_STEP
V_DC
Max. Attenuation
Step Resolution
DC Steps
VOLUME CONTROL
THD = 0.3%; Lin or Rin
THD = 0.3%; Rin + Lin (2)
adjacent att. step
35
2
-1
18.68
0.11
-3
50
2.5
3.0
19.68
0
19.68
0.31
0
65
1
20.68
0.51
3
KΩ
Vrms
Vrms
dB
dB
dB
dB
mV
C_RANGE
A_VMIN
A_VMAX
A_STEP
EA
Control Range
Min. Attenuation
Max. Attenuation
Step Resolution
Attenuation Set Error
E_T
Tracking Error
V_DC
DC Steps
BASS CONTROL (1)
Av = 0 to -40dB
Av = 0 to -20dB
Av = -20 to -60dB
adjacent attenuation steps
From 0dB to Av max
70
75
dB
-1
0
1
dB
70
75
dB
0.5 1.25 1.75 dB
-1.5
0
-3
1.5
dB
2
dB
2
dB
-3
0
3
mV
-5
0.5
5
mV
Gb
Control Range
B_STEP
Step Resolution
R_B
Internal Feedback Resistance
TREBLE CONTROL (1)
Max. Boost/cut
+11.5 +14 +16
dB
1
2
3
dB
32
44
56
KΩ
Gt
Control Range
T_STEP
Step Resolution
EFFECT CONTROL
Max. Boost/cut
+13 +14 +15
dB
0.5
2
1.5
dB
C_RANGE
S_STEP
Control Range
Step Resolution
- 21
1
-6
dB
dB
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