參數(shù)資料
型號(hào): MSM7540
廠商: OKI SEMICONDUCTOR CO., LTD.
元件分類: Codec
英文描述: Single Rail ADPCM CODEC
中文描述: 單軌差分PcM編解碼器
文件頁(yè)數(shù): 9/16頁(yè)
文件大小: 156K
代理商: MSM7540
9/16
MSM7540/7560
Semiconductor
FEDL7540-03
ELECTRICAL CHARACTERISTICS
DC and Digital Interface Characteristics
Parameter
Power Supply Current
Input High Voltage
Input Low Voltage
Output Low Voltage
Output Leakage Current
Input Capacitance
Symbol
I
DD1
I
DD2
V
IH
V
IL
I
IH
I
IL
V
OL
I
O
C
IN
Condition
Operating Mode,
(When no signal, and V
DD
= 5.0 V)
Power Down Mode
(When V
DD
= 5.0 V)
V
I
=
V
DD
V
I
=
0 V
1 LSTTL, Pull-up: 500
W
IS
Min.
2.2
0.0
0.0
Typ.
12
0.2
0.2
5
Max.
24
0.5
V
DD
0.6
2.0
0.5
0.4
10
Unit
mA
mA
V
V
V
m
A
pF
(V
DD
=
4.5 V to 5.5 V, Ta = –25°C to +70°C)
Input Leakage Current
m
A
m
A
Transmit Analog Interface Characteristics
Parameter
Input Resistance
Output Load Resistance
Output Load Capacitance
Output Amplitude
Input Offset Voltage
SG Output Voltage
SG Output Impedance
Symbol
R
INX
R
LGX
C
LGX
V
OGX
V
OFGX
V
SG
R
SG
Condition
AIN1, AIN2
GSX1, GSX2
GSX1, GSX2
GSX1, GSX2, R
L
= 50 k
W
Pre–OPAMPs
Min.
10
50
–20
Typ.
2.4
40
Max.
100
*
2.226
+20
80
Unit
M
W
k
W
pF
V
PP
mV
V
k
W
SG Rise Time
T
SG
700
ms
SG
GND 10
m
F + 0.1
m
F
(Rise time to 90% of max. level)
*
–3 dBm (600
W
) = 0 dBm0, + 3.14 dBm0 = 2.226 V
PP
(MSM7540)
–3 dBm (600
W
) = 0 dBm0, + 3.17 dBm0 = 2.226 V
PP
(MSM7560)
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