TDA7439_08 Datasheet, PDF (6/23 Pages) STMicroelectronics – Three-band digitally-controlled audio processor

Electrical specifications
TDA7439
Table 5.
Symbol
Electrical characteristics (continued)
Parameter
Test condition
Min Typ Max Unit
Speaker attenuators
C_range Control range
S_step Step resolution
E_{A Attenuation set error}
V_DC DC step
A_mute Mute attenuation
Audio outputs
V_CLIP Clipping level
R_L Output load resistance
R_O Output impedance
V_OUTDC DC voltage level
General
E_NO Output noise
E_t Total tracking error
S/N Signal to noise ratio
S_C Channel separation, left/right
d Distortion
Bus input
V_IL Input low voltage
V_IH Input high voltage
I_IN Input current
V_O
Output voltage SDA
acknowledge
A_V = 0 to -20 dB
A_V = -20 to -56 dB
Adjacent attenuation steps
d = 0.3%
All gains = 0 dB;
BW = 20 Hz to 20 kHz flat
A_V = 0 to -24 dB
A_V = -24 to -47 dB
All gains 0 dB,
V_O = 1 V RMS
A_V = 0, V_I = 1 V RMS
V_IN = 0.4 V
I_O = 1.6 mA
70 76 82 dB
0.5 1 1.5 dB
-1.5 0 1.5 dB
-2
0
2 dB
0
3 mV
80 100
dB
2.1 2.6
Vrms
2
kΩ
10 40 70 Ω
3.5 3.8 4.1 V
5 15 µV
0
1 dB
0
2 dB
95 106
dB
80 100
dB
0.01 0.08 %
1
V
3
V
-5
0
5 µA
0.4 0.8 V
1. For bass, mid-range and treble response: the center frequency and the response quality can be set by the
external circuitry.
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