TDA7405 Datasheet, PDF (5/56 Pages) STMicroelectronics – EQUALIZER CARRADIO SIGNAL PROCESSOR

TDA7405
Table 1. ELECTRICAL CHARACTERISTICS
(V_S=9V; T_amb=25°C; R_L=10kΩ; all gains=0dB; f=1kHz; unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
INPUT SELECTOR
R_in Input Resistance
all single ended Inputs
70
V_CL Clipping Level
2.2
S_IN Input Separation
80
G_{IN MIN} Min. Input Gain
-1
G_{IN MAX} Max. Input Gain
13
G_STEP Step Resolution
0.5
V_DC DC Steps
Adjacent Gain Steps
-5
G_MIN to G_MAX
-10
V_offset Remaining offset with AutoZero
DIFFERENTIAL STEREO INPUTS
R_in Input Resistance
Differential
70
(see Fig. 1)
G_CD Gain
only at true differential input
-1
-5
-11
CMRR Common Mode Rejection Ratio V_CM = 1V_RMS @ 1kHz
46
V_CM = 1V_RMS @ 10kHz
46
e_NO Output-Noise @ Speaker-Outputs 20Hz - 20kHz, flat; all stages 0dB
DIFFERENTIAL MONO INPUTS
R_in Input Impedance
Differential
40
CMRR Common Mode Rejection Ratio V_CM = 1V_RMS @ 1kHz
46
V_CM = 1V_RMS @ 10kHz
46
BEEP CONTROL
V_RMS Beep Level
Mix-Gain = 6dB
250
f_Beep Beep Frequency
f_Beep1
470
f_Beep2
740
f_Beep3
1.7
f_Beep4
18
1. The Level for the 19kHz-Testtone is 2.1V_RMS
MIXING CONTROL
M_LEVEL Mixing Ratio
G_MAX Max. Gain
Main / Mix-Source
13
A_MAX Max. Attenuation
-83
A_STEP Attennuation Step
0.5
Typ.
100
2.6
100
0
15
1
1
1
0.5
100
0
-6
-12
70
60
9
56
70
60
350¹⁾
500
780
1.8
19
-6/-6
15
-79
1
Max.
130
+1
17
1.5
5
10
130
1
-7
-13
15
72
500
530
820
1.9
20
17
-75
1.5
Unit
kΩ
V_RMS
dB
dB
dB
dB
mV
mV
mV
kΩ
dB
dB
dB
dB
dB
µV
kΩ
dB
dB
mV
Hz
Hz
kHz
kHz
dB
dB
dB
dB
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