參數(shù)資料
型號: TDA7404D
廠商: STMICROELECTRONICS
元件分類: 音頻控制
英文描述: 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
封裝: SOP-28
文件頁數(shù): 35/35頁
文件大小: 633K
代理商: TDA7404D
TDA7404
Electrical specifications
3.5
Electrical characteristics
Table 5.
Electrical characteristics
(VS =9 V; Tamb=25 °C; RL=10 kΩ; all gains = 0 dB; f = 1 kHz; unless otherwise specified)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Input selector
Rin
Input resistance
all single ended Inputs
70
100
130
k
Ω
VCL
Clipping level
2.20
2.60
VRMS
SIN
Input separation
80
100
dB
GIN MIN Min. input gain
-1
0
1
dB
GIN MAX Max. input gain
18
20
22
dB
GSTEP
Step Resolution
0.5
1
1.5
dB
VDC
DC Steps
Adjacent gain steps
-5
1
5
mV
GMIN to GMAX
-10
5
10
mV
Voffset
Remaining offset with AutoZero
0.5
mV
P differential stereo inputs
Rin
Input resistance
Differential
70
100
130
k
Ω
GCD
Gain
only at true differential
input
-0.75
0
0.75
dB
-5
-6
-7
dB
-11
-12
-13
dB
CMRR
Common mode rejection ratio
VCM = 1 VRMS @ 1 kHz
40
70
dB
VCM = 1 VRMS @ 10 kHz
40
60
dB
eNO
Output noise @ speaker-outputs
20 Hz - 20 kHz, flat;
all stages 0 dB
9V
Differential mono input
Rin
Input resistance
Differential
395673
k
Ω
CMRR
Common mode rejection ratio
VCM = 1 VRMS @ 1 kHz
40
70
dB
VCM = 1 VRMS @ 10 kHz
40
60
dB
Beep control
VRMS
Beep level
250
350
500
mV
fB
Beep frequency
fB1
740
781
820
Hz
fB2
1.48
1.56
1.64
kHz
fB3
1.7
1.8
1.9
kHz
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