TDA7401 データシートの表示（PDF） - STMicroelectronics
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TDA7401 Datasheet PDF : 10 Pages
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TDA7401
ELECTRICAL CHARACTERISTICS (VS = 9V; RL = 10KΩ; Rg = 50Ω; Tamb = 25°C; all gains = 0dB;
f = 1KHz. Refer to the test circuit, unless otherwise specified.)
Symbol
Parameter
INPUT STAGE: AUX1
RI
Input Resistance
VCL
Clipping Level
SI
Input Separation
GAIN CONTROL
G MAX
Maximum Input Gain
AMAX
Maximum Attenuation
ASTEP
Step Resolution
EA
Attenuation Set Error
ET
Tracking Error
VDC
DC Steps
AUDIO OUTPUT (Pin 8 - 9, 10 - 14)
Vclip
Clipping Level
RL
Output Load Resistance
RO
Output Impedance
VDC
DC Voltage Level
STAGE: HP FILTER
R1
Resistance at pin HP1
R2
Resistance at pin HP2
VCL
Clipping Level
MUTE
AMUTE
Mute Attenuation
VTHM
Mute Threshold
RINT
Pullup Resistor (pin 3)
GENERAL
VCC
Supply Voltage
ICC
Supply Current
PSRR Power Supply Rejection Ratio
eNO
Output Noise
S/N
Signal to Noise Ratio
SC
Channel Separation
d
Distortion
BUS INPUTS
VIL
Input Low Voltage
VlH
Input High Voltage
IlN
Input Current
VO
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 GMIN
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; VO = 1Vrms
80
VIN =1V
2.5
VIN = 0.4V
-5
IO = 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
VRMS
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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