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參數(shù)資料
| 型號： | MSM7557 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Single Chip MSK Modem with Compandor for Cordless Telephone |
| 中文描述： | 單芯片MSK調(diào)制解調(diào)器無繩電話與Compandor |
| 文件頁數(shù)： | 13/25頁 |
| 文件大?。?/td> | 153K |
| 代理商： | MSM7557 |
13/25
MSM7557
Semiconductor
Voice Signal Interfaces
RVO Maximum Output
Signal Level
—
—
–9
–1
–40
–40
–0.2
–0.2
–51
–85
–75
–80
–28
–10.5
+8.0
+10.5
–40
+3.0
+9.5
–8.0
–10.5
–40
–6
+2
–8
0
—
—
+1
+1
—
—
–60
–60
–23
–8.5
+9.5
+12.5
–30
+4.5
+11.0
–6.5
–8.5
–30
V
OUT
Min.
—
—
–10
–2
—
—
–1.5
–1.5
—
—
—
—
—
–12.5
+6.5
+8.5
—
+1.5
+8.0
–9.5
–12.5
—
DYN = "0"
DYN = "1"
DYN = "0"
DYN = "1"
100 Hz
300 Hz
2.5 kHz
3.4 kHz
6 kHz
100 Hz
300 Hz
2.5 kHz
3.4 kHz
6 kHz
f
IN
= 1 kHz
BYP = "0" *1
f
IN
= 1 kHz
LIM = open
f
IN
= 1 kHz, –12 dBV
BYP = "0", EMP = "1"
f
IN
= 1 kHz, BYP = EMP = "1"
f
IN
= 1 kHz, BYP = EMP = "1"
BYP = "0"
EMP = "1"
RAIO = –2 dBV
TVIO = –2 dBV
R
CV.
T
ran.
T
ran.
R
CV.
*1 S/D
≥ 20
dB
*2 f
IN
= 1 kHz, BYP = EMP = "1"
*2
Cross Talk
DYN = "0" : V
DD
= 2.7 V to 5.5 V, Ta = –30°C to 70°C
DYN = "1" : V
DD
= 4.5 V to 5.5 V, Ta = –30°C to 70°C
Typ.
Limiter Clamp Level
Transmit Output Distortion
Receive Output Distortion
Transmit Gain
Receive Gain
Transmit Idle Noise
Receive Idle Noise
Transmit Filter
Response
Receive Filter
Response
V
LIM
H
DT
H
DR
G
T
G
R
H
IT
H
IR
C
TT
C
TR
FT1
FT3
FT25
FT34
FT60
FR1
FR3
FR25
FR34
FR60
EMP = "1"
BYP = "1"
RCK2 = "0"
Ref. = 1 kHz
EMP = "1"
BYP = "1"
RCK2 = "0"
Ref. = 1 kHz
Max.
Unit
Condition
Symbol
Parameter
dBV
dB
dBV
dB
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|---|---|
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|---|---|
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