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Part Name
Description
MSM7581 View Datasheet(PDF) - Oki Electric Industry
Part Name
Description
Manufacturer
MSM7581
ITU-T G.721 4ch ADPCM TRANSCODER
Oki Electric Industry
MSM7581 Datasheet PDF : 18 Pages
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¡ Semiconductor
ABSOLUTE MAXIMUM RATINGS
Parameter
Power Supply Voltage
Digital Input Voltage
Storage Temperature
Symbol
V
DD
V
DIN
T
STG
Condition
—
—
—
MSM7581
Rating
Unit
0 to 7
V
–0.3 to V
DD
+ 0.3
V
–55 to +150
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
Power Supply Voltage
Operating Temperature
Digital Input High Voltage
Digital Input Low Voltage
Bit Clock Frequency
Synchronous
signal Frequency
Clock Duty Ratio
Digital Input Rise Time
Digital Input Fall Time
Synchronous signal Timing
CODER
Synchronous signal Timing
DECODER
Synchronous
signal Width
Data Set-up Time
Data Hold Time
Symbol
V
DD
Ta
V
IH
V
IL
F
BCLKA
F
BCLKP
F
SYNC
D
C
t
Ir
t
If
t
XS
t
SX
t
RS
t
SR
t
WS
t
DS
t
DH
R
DL
Digital Output Load
C
DL
Condition
—
—
All digital input pins
BCKA1 - 4
BCKP1 - 4
SYXP1 - 4, SYRP1 - 4
SYXA1 - 4, SYRA1 - 4
BCKA1 - 4, BCKP1 - 4
All Digital Input Pins
BCKP1 - 4 to SYXP1 - 4
SYXA1 - 4 to BCKA1 - 4
BCKA1 - 4 to SYRA1 - 4
SYRP1 - 4 to BCKP1 - 4
SYXP1 - 4, SYRP1 - 4
SYXA1 - 4, SYRA1 - 4
—
—
SOP1 - 4, SOA1 - 4
(Pull-up Resistor)
SOP1 - 4, SOA1 - 4
DET1 - 4, PLCK1 - 4
Min. Typ. Max. Unit
2.7
—
5.5
V
–30
+25
+80
°C
0.45
¥
V
DD
—
V
DD
V
0
— 0.16
¥
V
DD
V
32
—
2048 kHz
64
—
2048 kHz
—
8.0
—
kHz
30
50
70
%
—
—
50
ns
—
—
50
ns
100
—
—
ns
100
—
—
ns
100
—
—
ns
100
—
—
ns
1 BCLK —
100
m
s
100
—
—
ns
100
—
—
ns
500
—
—
W
—
—
100
pF
8/18
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