msm7557 Oki Semiconductor, msm7557 Datasheet - Page 13

• Manufacturer Part Number: msm7557
• Description: Single Chip Msk Modem With Compandor For Cordless Telephone
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Voice Signal Interfaces
*1 S/D ≥ 20 dB
*2 f
RVO Maximum Output
Signal Level
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
Cross Talk
IN
Parameter
= 1 kHz, BYP = EMP = "1"
R
T
ran. Æ
CV. Æ
T
R
ran.
CV.
Symbol
FR25
FR34
FR60
V
FT25
FT34
FT60
V
H
H
FR1
FR3
C
FT1
FT3
H
C
H
G
G
OUT
LIM
DR
DT
TT
TR
IT
IR
R
T
f
BYP = "0" *1
f
LIM = open
f
BYP = "0", EMP = "1"
f
f
BYP = "0"
EMP = "1"
RAIO = –2 dBV
TVIO = –2 dBV
EMP = "1"
BYP = "1"
RCK2 = "0"
Ref. = 1 kHz
EMP = "1"
BYP = "1"
RCK2 = "0"
Ref. = 1 kHz
IN
IN
IN
IN
IN
= 1 kHz
= 1 kHz
= 1 kHz, –12 dBV
= 1 kHz, BYP = EMP = "1"
= 1 kHz, BYP = EMP = "1"
Condition
DYN = "0"
DYN = "1"
DYN = "0"
DYN = "1"
2.5 kHz
3.4 kHz
2.5 kHz
3.4 kHz
100 Hz
300 Hz
100 Hz
300 Hz
DYN = "0" : V
DYN = "1" : V
6 kHz
6 kHz
*2
–12.5
–12.5
Min.
–1.5
–1.5
+6.5
+8.5
+1.5
+8.0
–9.5
–10
DD
DD
—
—
–2
—
—
—
—
—
—
—
—
—
= 2.7 V to 5.5 V, Ta = –30°C to 70°C
= 4.5 V to 5.5 V, Ta = –30°C to 70°C
–10.5
+10.5
–10.5
Typ.
–0.2
–0.2
+8.0
+3.0
+9.5
–8.0
–40
–40
–51
–85
–75
–80
–28
–40
–40
—
—
–9
–1
Max.
+12.5
+11.0
–8.5
+9.5
+4.5
–6.5
–8.5
–60
–60
–23
–30
–30
–6
+2
–8
—
—
+1
+1
—
—
0
MSM7557
Unit
13/25
dBV
dBV
dB
dB