Datasheet

Electrical specifications TDA7419
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3.4 Electrical characteristics
Table 6. Electrical characteristics
V
S
= 8.5V; T
amb
= 25°C; R
L
= 10k; all gains = 0 dB; f = 1 kHz; unless otherwise specified
Symbol Parameter Test condition Min. Typ. Max. Unit
Supply
V
S
Supply voltage 8 8.5 10 V
I
S
Supply current 27 37 47 mA
Input selector
R
in
Input resistance All single ended inputs 70 100 130 k
V
CL
Clipping level
All Input 1.8 2 V
RMS
QD input 1.7 2 V
RMS
S
IN
Input separation 80 100 dB
G
IN MIN
Min. input gain -1 0 1 dB
G
IN MAX
Max. input gain 13 15 17 dB
G
STEP
Step resolution 0.5 1 1.5 dB
V
DC
DC steps
Adjacent gain steps -5 1 5 mV
G
MIN
to G
MAX
-20 4 20 mV
V
offset
Remaining offset with AutoZero 0.5 mV
Differential stereo inputs
R
in
Input resistance Differential 70 100 130 K
CMRR Common mode rejection ratio
V
CM
=1 VRMS @ 1 kHz 46 70 dB
V
CM
=1 VRMS @ 10 kHz 46 60 dB
e
No
Output noise @ speaker outputs
20 Hz to 20 kHz, flat;
all stages 0 dB
12 V
MIxing control
M
LEVEL
Mixing ratio Main / mix source -6/-6 dB
G
MAX
Max gain 13 15 17 dB
A
MAX
Max attenuation -83 -79 -75 dB
A
STEP
Step resolution 0.5 1 1.5 dB
Loudness control
A
MAX
Max attenuation -17 -15 -13 dB
A
STEP
Step resolution 0.5 1 1.5 dB
f
Peak
Peak frequency
f
P1
360 400 440 Hz
f
P2
720 800 880 Hz
f
P3
2200 2400 2600 Hz