參數(shù)資料
型號(hào): MSM7502
廠商: OKI SEMICONDUCTOR CO., LTD.
元件分類: Codec
英文描述: Multi-Function PCM CODEC
中文描述: 多功能的PCM編解碼器
文件頁(yè)數(shù): 17/35頁(yè)
文件大?。?/td> 196K
代理商: MSM7502
Semiconductor
MSM7502
17/35
AC Characteristics 1 (CODEC) (Continued)
tgd T1
tgd T2
tgd T3
tgd T4
tgd T5
tgd R1
tgd R2
tgd R3
tgd R4
tgd R5
CR T
CR R
Transmit Group Delay
ms
500
600
1000
2600
2800
500
600
1000
2600
2800
0.19
0.12
0.02
0.05
0.08
0.0
0.0
0.0
0.09
0.12
78
86
70
75
0.75
0.35
0.125
0.125
0.75
0.75
0.35
0.125
0.125
0.75
0
*4
Receive Group Delay
ms
0
*4
Transmit
Receive
Receive
Transmit
1020
0
Crosstalk Attenuation
dB
4.6 kHz to
72 kHz
300 to
3400
fa = 470
fb = 320
0 to 50
kHz
Discrimination
DIS
0 to 4000 Hz
–25
32.0
30
dB
Out-of-band Signal
Spurious
S
4.6 kHz to 100 kHz
0
–37.5
–35
dBmO
Intermodulation Distortion
IMD
2fa–fb
–4
–52
–35
dBmO
PSR T
PSR R
*5
30
50
mV
pp
Power Supply Noise
Rejection Ratio
dB
Parameter
Symbol
Condition
Typ.
Unit
Min.
Max.
Freq.
(Hz)
Level
(dBm0)
(V
DD
= 5 V ±5%, Ta = –10°C to +70°C)
AIN = SG
*1
*1
*3
Nidle T
*2
–73.5
–71
–70
–69
Nidle R
–78.0
–75
Idle Channel Noise
dBmOp
AV T
AV R
0.5671
0.5671
0.6007
0.6007
0.6363
0.6363
1020
0
Vrms
Absolute Amplitude
A to A
BCLOCK = 64 kHz
Absolute Delay Time
Td
1020
0
0.58
0.60
ms
Notes:
*2 Upper is specified for the m-law, lower of the A-law
*3 PCMIN input : idle CODE
*4 Minimum value of the group delay distortion
*5 The measurement under idle channel noise
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