TDA7401 Datasheet, PDF (3/10 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR WITH LOUDSPEAKERS EQUALIZER

TDA7401
ELECTRICAL CHARACTERISTICS (V_S = 9V; R_L = 10KΩ; R_g = 50Ω; T_amb = 25°C; all gains = 0dB;
f = 1KHz. Refer to the test circuit, unless otherwise specified.)
Symbol
Parameter
INPUT STAGE: AUX1
RI
Input Resistance
V_CL
Clipping Level
S_I
Input Separation
GAIN CONTROL
G _MAX
Maximum Input Gain
AMAX
Maximum Attenuation
A_STEP
Step Resolution
E_A
Attenuation Set Error
E_T
Tracking Error
V_DC
DC Steps
AUDIO OUTPUT (Pin 8 - 9, 10 - 14)
V_clip
Clipping Level
R_L
Output Load Resistance
R_O
Output Impedance
V_DC
DC Voltage Level
STAGE: HP FILTER
R1
Resistance at pin HP1
R2
Resistance at pin HP2
V_CL
Clipping Level
MUTE
A_MUTE
Mute Attenuation
VTHM
Mute Threshold
R_INT
Pullup Resistor (pin 3)
GENERAL
V_CC
Supply Voltage
I_CC
Supply Current
PSRR
e_NO
Power Supply Rejection Ratio
Output Noise
S/N
Signal to Noise Ratio
S_C
Channel Separation
d
Distortion
BUS INPUTS
V_IL
Input Low Voltage
V_lH
Input High Voltage
I_lN
Input Current
V_O
Output Voltage SDA
Acknowledge
Test Condition
d ≤ 0.3%
Min.
37.5
2.1
80
G = -20 to +20dB
G = -60 to -20dB
Adiacent Attenuation Steps
From 0dB to G_MIN
0.5
-1.25
-4
d = 0.3%
2.1
AC coupled
2
4.2
HIGHPASS BYTE = XXXX1000
d ≤ 0.3%
127.5
1
2.1
80
1.2
(note 1)
37.5
6
7
f = 1KHz
60
Non Inverting Output Muted (B =
20 to 20kHz flat)
All Gains 0dB (B = 20 to 20kHz
flat)
All Gains = 0dB; V_O = 1V_rms
80
V_IN =1V
2.5
VIN = 0.4V
-5
I_O = 1.6mA
0.1
Typ.
50
2.6
100
20
79
1
0
0.1
0.5
2.6
30
4.5
170
2.6
100
1.7
50
9
8
70
3.5
5
106
100
0.01
Max.
62.5
1.5
+1.25
3
2
3
5
100
4.8
212.5
2.2
62.5
10.2
9
15
15
0.08
0.8
5
0.4
Unit
KΩ
V_RMS
dB
dB
dB
dB
dB
dB
dB
mV
mV
Vrms
KΩ
Ω
V
KΩ
MΩ
Vrms
dB
V
KΩ
V
mA
dB
µV
µV
dB
dB
%
V
V
µA
V
Note 1: Internal pullup resistor to 3.3V; ”LOW” = mute active
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