參數(shù)資料
型號(hào): MSM7540L
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): 9/15頁(yè)
文件大?。?/td> 131K
代理商: MSM7540L
9/15
MSM7540L/7560L
Semiconductor
Parameter
Input Resistance
Output Load Resistance
Output Capacitance
Symbol
R
INPW
R
LVF
R
LAO
C
LVF
C
LAO
V
OVF
Condition
PWI
VFRO
AOUT+, AOUT–
VFRO
AOUT+, AOUT–
Min.
10
50
1.2
Typ.
Max.
100
100
*1.300
*1.300
Unit
M
W
k
W
k
W
pF
pF
V
PP
V
PP
Output Voltage Level
Offset Voltage
V
OAO
V
OFVF
V
OFAO
–100
–20
+100
+20
mV
mV
VFRO,
AOUT+,
AOUT–
VFRO
AOUT+, AOUT– (GAIN = 0 dB),
Power amp only
Power amp (0.3 to 3.4 kHz,
Z
L
= 350
W
+ 120 nF)(See Fig.1)
G
DB
40
dB
R
L
= 50 k
W
R
L
= 1.2 k
W
Z
L
= 350
W
+ 120 nF(See Fig.1)
V
PP
*1.300
Open Loop Gain
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,
No Signal (V
DD
= 3.0 V)
Power Down Mode (V
DD
= 3.0 V)
V
I
=
V
DD
V
I
=
0 V
1 LSTTL, Pull-up: 500
W
IS
Min.
0.45
V
DD
0.0
0.0
Typ.
6
0.1
0.2
5
Max.
12
0.2
V
DD
0.16
V
DD
2.0
0.5
0.4
10
Unit
mA
mA
V
V
m
A
m
A
V
m
A
pF
(V
DD
=
2.7 V to 3.6 V, Ta = –25°C to +70°C)
Input Leakage Current
Transmit Analog Interface Characteristics
Parameter
Input Resistance
Output Load Resistance
Output Load Capacitance
Output Amplitude
Input Offset Voltage
SG Output Voltage
SG Output Inpedance
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
= 20 k
W
Pre–OPAMPs
Min.
10
20
–20
Typ.
1.4
40
Max.
100
*1.300
+20
80
Unit
M
W
k
W
pF
V
PP
mV
V
k
W
SG Rise Time
T
SG
700
ms
GND
SG 10
m
F + 0.1
m
F
(Rise Time to 90% of max.
level)
Receive Analog Interface Characteristics
*
–7.7 dBm (600
W
) = 0 dBm0, + 3.14 dBm0 = 1.300 V
PP
(MSM7540L)
–7.7 dBm (600
W
) = 0 dBm0, + 3.17 dBm0 = 1.300 V
PP
(MSM7560L)
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