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參數(shù)資料
| 型號： | LS656 |
| 廠商： | 意法半導體 |
| 英文描述： | Telephone Speech Circuit With Multifrequency Tone Generator Interface(帶多頻語音發(fā)生器接口的電話語音電路) |
| 中文描述： | 電話語音電路多頻音發(fā)生器接口（帶多頻語音發(fā)生器接口的電話語音電路） |
| 文件頁數(shù)： | 4/15頁 |
| 文件大?。?/td> | 192K |
| 代理商： | LS656 |
ELECTRICAL CHARACTERISTICS
(refer to the test circuits, V
G
= 1 to 2V, I
L
= 12 to 80mA, S1,
S2 and S3 in (a), T
amb
= – 25 to + 50
o
C, f = 200 to 3400Hz, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Fig.
SPEECH OPERATION
V
L
Line Voltage
T
amb
= 25
°
C
I
L
= 12mA
I
L
= 30mA
I
L
= 60mA
3.4
4.0
5.1
7.0
V
–
CMR
Common Mode Rejection
f = 1kHz
50
dB
1
G
S
Sending Gain
T
amb
= 25
°
C, f = 1kHz,
V
MI
= 2mV
I
L
= 25mA
I
L
= 50mA
48
44
51
47
dB
2
Sending Gain Flatness
(versus frequency)
V
MI
= 2mV, f
ref
= 1kHz
– 1
+ 1
dB
2
Sending Gain Flatness
(versus current)
V
MI
= 3 mV, I
ref
= 50mA,
S3 in (b)
– 1
+ 1
dB
2
Sending Distortion
f = 1kHz, I
= 16mA
V
so
= 775mV
V
so
= 900mV
3
10
%
%
2
Sending Noise
V
MI
=0V; V
G
= 1V; S1 in (b)
– 71
dBmp
2
Microphone Input Impedance (pin 1-16)
V
MI
= 2mV
40
k
–
Sending Gain in MF Operation
V
MI
= 2mV, S2 in (b)
– 30
dB
2
G
R
Receiving gain
V
RI
= 0.3V, f = 1kHz,
T
amb
= 25
°
C
I
L
= 25mA
I
L
= 50mA
– 6
– 11
– 3
– 8
dB
3
Receiving Gain Flatness (vs. freq.)
V
RI
= 0.3V, f
ref
= 1kHz
– 1
+ 1
dB
3
Receiving Gain Flatness (vs. current)
V
= 0.3V, I
ref
= 50mA,
S3 in (b)
– 1
+ 1
dB
3
Receiving Distortion
f = 1kHz, I
= 15mA
V
RO
= 400mV
V
RO
= 450mV
3
10
%
3
Receiving Noise
V
RI
= 0V; V
G
= 1V; S1 in(b)
150
μ
V
3
Receiving Ouptut Impedance
(pins 12-13)
V
RO
= 50mV
30
–
Sidetone
f = 1kHz, T
amb
= 25
°
C,
S1 in (b)
36
dB
2
Z
ML
Line Matching Impedance
V
RI
= 0.3V, f = 1kHz
500
600
700
3
I
8
Input Current for Gain Control (pin 8)
– 10
μ
A
–
LS656
4/15
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相關代理商/技術參數(shù) |
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| LS656AB | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE |
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| LS656B | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE |
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