參數(shù)資料
型號: MSM7708-02
廠商: OKI SEMICONDUCTOR CO., LTD.
元件分類: Codec
英文描述: Serial Register Interface ADPCM CODEC for Telephone Recording(用于電話記錄的串行寄存器接口ADPCM編碼譯碼器)
中文描述: 串行接口差分PcM注冊解碼器的電話錄音(用于電話記錄的串行寄存器接口差分PcM編碼譯碼器)
文件頁數(shù): 16/38頁
文件大小: 232K
代理商: MSM7708-02
Semiconductor
MSM7708-02
16/38
Analog Interface Characteristics
Parameter
Input Resistance
Output Resistance Load
Output Capacitance Load
Output Voltage Level (
*
1)
Offset Voltage
Symbol
R
IN
R
L1
R
L2
C
L1
C
L2
V
O1
V
OF1
V
OF2
V
SG
Condition
AIN+, AIN–, AIN2, PWI
Min.
10
20
1.2
–100
–20
Typ.
1.4
Max.
100
100
1.3
+100
+20
Unit
M
W
k
W
k
W
pF
pF
V
PP
mV
mV
V
GSX1, GSX2, VFRO, SAO
AOUT+, AOUT–
GSX1, GSX2, VFRO, SAO
AOUT+, AOUT–
GSX1, GSX2, VFRO,
SAO(R
L
= 20 k
W
)
AOUT+, AOUT–
(R
L
= 1.2 k
W
)
VFRO, SAO
GSX1, GSX2, AOUT+, AOUT–
SGT, SGR
(V
DD
= 2.7 V to 3.6 V, Ta = –25°C to +70°C)
V
O2
1.3
V
PP
SGR Output Impedance
R
SGR
8
12
k
W
SGR
SGT Output Impedance
R
SGT
40
80
k
W
SGT
SGT, SGR Output Voltage
*1 –7.7 dBm (600
W
) = 0 dBm0, +3.14 dBm0 = 1.30 V
PP
.
Digital Interface Characteristics
1 LSTTL + 100 pF
pull-up resistor : 500
W
Items in parenthesis
mean C load = 10 pF, and
the pull-up resistor
2 k
W
Parameter
Digital Output Delay Time
PCM, ADPCM Interface
Symbol
t
SDX,
t
SDR
t
XD1,
t
RD1
t
XD2,
t
RD2
t
XD3,
t
RD3
Condition
Min.
0
0
0
0
Typ.
Max.
200 (100)
200 (100)
200 (100)
200 (100)
Unit
ns
ns
ns
ns
(V
DD
= 2.7 V to 3.6 V, Ta = –25°C to +70°C)
Reference
Fig. 4
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
9
t
10
t
11
t
12
50
50
50
50
100
50
50
0
50
50
0
200
100
50
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Serial Port Digital I/O
Timing Characteristics
C load = 50 pF
Fig. 5
EXCK Clock Frequency
F
EXCK
EXCK
10
MHz
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