參數(shù)資料
型號: TDA7461NDTR
廠商: STMICROELECTRONICS
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO28
封裝: SOP-28
文件頁數(shù): 2/48頁
文件大?。?/td> 437K
代理商: TDA7461NDTR
Electrical specification
TDA7461
2.6
Audio processor electrical characteristics
Table 6.
Audio processor electrical characteristics
(VS = 9 V; Tamb = 25 °C; RL = 10 kΩ; all gains = 0 dB; f = 1 kHz; unless otherwise specified).
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
Input selector
Rin
Input resistance
all inputs except phone
70
100
130
K
Ω
VCL
Clipping level
2.2
2.6
VRMS
SIN
Input separation
80
100
dB
GIN MIN
Min. input gain
-1
0
1
dB
GIN MAX
Max. input gain
13
14
15
dB
GSTEP
Step resolution
1
2
3
dB
VDC
DC Steps
Adjacent gain step
-5
0
+5
mV
GMIN to GMAX
-5
1
+5
mV
Differential CD stereo input
Rin
Input resistance
Differential
70
100
130
K
Ω
Common mode
20
30
40
K
Ω
CMRR
Common mode rejection ratio
VCM = 1 VRMS @ 1 kHz
45
70
dB
VCM = 1 VRMS @ 10 kHz
45
60
dB
eN
Output noise @ speaker
output
20 Hz to 20 kHz flat; all stages 0dB
9
15
μV
Differential phone input
Rin
Input resistance
Differential
10
15
20
K
Ω
Common mode
20
30
40
K
Ω
CMRR
Common mode rejection ratio
VCM = 1 VRMS @ 1 kHz
45
70
dB
VCM = 1 VRMS @ 10 kHz
45
60
dB
Beep control
VRMS
Beep level
250
350
500
mV
fBMIN
Lower beep frequency
570
600
630
Hz
fBMAX
Higher beep frequency
1.15
1.2
1.25
KHz
Mixing control
MLEVEL
Mixing level
Source
-1
0
1
dB
Source
-5
-6
-7
dB
Source
-10
-12
-14
dB
Beep/Phone
-1
0
1
dB
Volume control
GMAX
Max gain
19
20
21
dB
AMAX
Max attenuation
-83
-79
-75
dB
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