TDA7312 Datasheet, PDF (4/13 Pages) STMicroelectronics – DIGITAL CONTROLLED STEREO AUDIO PROCESSOR

TDA7312
ELECTRICAL CHARACTERISTICS (refer to the test circuit Tamb = 25°C, VS = 9V, RL = 10KΩ,
RG = 600Ω, all controls flat (G = 0), f = 1KHz unless otherwise specified)
Symbol
SUPPLY
Parameter
Test Condition
Min. Typ. Max.
V_S
IS
SVR
Supply Voltage
Supply Current
Ripple Rejection
INPUT SELECTORS
6
9
10
8
11
60
80
R_II
Input Resistance
V_CL
Clipping Level
SIN
Input Separation (2)
R_L
Output Load resistance
e_IN
Input Noise
VOLUME CONTROL
Input 1, 2, 3
35
50
70
2
2.5
80
100
2
2
R_IV
CRANGE
A_VMIN
A_VMAX
A_STEP
E_A
E_T
VDC
Input Resistance
Control Range
Min. Attenuation
Max. Attenuation
Step Resolution
Attenuation Set Error
Tracking Error
DC Steps
SPEAKER ATTENUATORS
Av = 0 to -20dB
Av = -20 to -60dB
adjacent attenuation steps
From 0dB to Av max
20
33
50
70
75
80
-1
0
1
70
75
80
0.5 1.25 1.75
-1.25
0
1.25
-3
2
2
0
3
0.5
7.5
C_range
S_STEP
EA
A_MUTE
V_DC
Control Range
Step Resolution
Attenuation set error
Output Mute Attenuation
DC Steps
BASS CONTROL (1)
adjacent att. steps
from 0 to mute
35 37.5 40
0.5 1.25 1.75
1.5
80
100
0
3
1
10
Gb
Control Range
B_STEP
Step Resolution
R_B
Internal Feedback Resistance
TREBLE CONTROL (1)
Max. Boost/cut
+12 +14 +16
1
2
3
34
44
58
Gt
Control Range
TSTEP
Step Resolution
DIGITAL OUTPUTS
Max. Boost/cut
+13 +14 +15
1
2
3
VCESAT
I_leak
I leakage
VOUT = Low IC =1mA
V_OUT = V_S
0.2
0.3
10
Unit
V
mA
dB
KΩ
Vrms
dB
KΩ
µV
kΩ
dB
dB
dB
dB
dB
dB
dB
mV
mV
dB
dB
dB
dB
mV
mV
dB
dB
KΩ
dB
dB
V
µA
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