TDA7439DS_07 Datasheet, PDF (5/23 Pages) STMicroelectronics – Three-band digitally-controlled audio processor

TDA7439DS
Electrical specifications
Table 5.
Symbol
Electrical characteristics (continued)
Parameter
Test condition
Min. Typ Max Unit
Input stage
R_IN Input resistance
V_CL Clipping level
THD = 0.3%
70 100 130 kΩ
2 2.5
V
RMS
S_IN Input separation
The selected input is
grounded through a 2.2 µF 80 100
dB
capacitor
G_{in_min} Minimum input gain
G_{in_max} Maximum input gain
G_step Step resolution
Volume control
-1
0
1 dB
29 30 31 dB
1.5 2 2.5 dB
R_i Volume control input resistance
20 33 50 kΩ
C_range Volume control range
45 47 49 dB
A_{v_max} Max. attenuation
45 47 49 dB
A_step Step resolution
0.5 1 1.5 dB
E_A Attenuation set error
A_V = 0 to -24 dB
A_V = -24 to -47 dB
-1.0 0 1.0 dB
-1.5 0 1.5 dB
EΤ Tracking error
A_V = 0 to -24 dB
A_V = -24 to -47 dB
0
1 dB
0
2 dB
V_DC DC step
adjacent attenuation steps
from 0 dB to A_{v_max}
0
3 mV
0.5
mV
A_mute Mute attenuation
Bass control ⁽¹⁾
80 100
dB
Gb Control range
Max. boost/cut
±12.0 ±14.0 ±16.0 dB
B_step Step resolution
R_B Internal feedback resistance
Treble control ⁽¹⁾
1
2
3 dB
33 44 55 kΩ
Gt Control range
Max. boost/cut
±13.0 ±14.0 ±15.0 dB
T_step Step resolution
Mid-range control ⁽¹⁾
1
2
3 dB
Gm Control range
Max. boost/cut
±12.0 ±14.0 ±16.0 dB
M_step
R_M
Step resolution
Internal feedback resistance
1
2
3 dB
18.75 25 31.25 kΩ
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