TDA7448 Datasheet, PDF (3/13 Pages) STMicroelectronics – 6 CHANNEL VOLUME CONTROLLER

TDA7448
ELECTRICAL CHARACTERISTCS
(refer to the test circuit T_amb = 25°C, V_S = 9V, R_L = 10KΩ, R_G = 600Ω, unless otherwise specified)
Symbol
Parameter
Test Condition
Min. Typ. Max.
SUPPLY
V_S Supply Voltage
4.75
9
10
I_S
Supply Current
7
SVR Ripple Rejection
80
INPUT STAGE
R_IN Input Resistance
35
50
65
V_CL Clipping Level
THD = 0.3%
2
2.5
S_IN Input Separation
The selected input is grounded
90
through a 2.2µ capacitor
VOLUME CONTROL
C_RANGE Control Range
79
A_VMAX Max. Attenuation
79
A_STEP Step Resolution
0.5
1
1.5
E_A Attenuation Set Error
A_V = 0 to -24dB
-1
0
1
A_V = -24 to -79dB
-2.0
0
2.0
E_T Tracking Error
A_V = 0 to -24dB
-1
0
1
A_V = -24 to -79dB
-2
0
2
V_DC DC Step
adyacent attenuation steps
-3
0
3
A_mute Mute Attenuation
90
AUDIO OUTPUTS
V_CLIP Clipping Level
THD = 0.3%
2
2.5
R_L Output Load Resistance
2
V_DC DC Voltage Level
4.5
GENERAL
E_NO Output Noise
BW = 20Hz to 20KHz
All gains = 0dB, Flat
10
15
S/N Signal to Noise Ratio
All gains = 0dB; V_O = 1Vrms
100
S_C Channel Separation left/Right
80
90
THD Distortion
A_V = 0; V_I = 1Vrms
0.01 0.1
BUS INPUT
V_Il Input Low Voltage
1
V_IH Input High Voltage
2.5
I_IN Input Current
V_IN = 0.4V
-5
5
V_O Output Voltage SDA
Achnowledge
I_O = 1.6mA
0.4
0.8
Unit
V
mA
dB
KΩ
Vrms
dB
dB
dB
dB
dB
dB
dB
dB
mV
db
Vrms
KΩ
V
µV
dB
dB
%
V
V
µA
V
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