參數(shù)資料
型號(hào): MSM7542
廠商: OKI SEMICONDUCTOR CO., LTD.
元件分類(lèi): Codec
英文描述: Single Rail CODEC
中文描述: 單鐵編解碼器
文件頁(yè)數(shù): 13/20頁(yè)
文件大?。?/td> 154K
代理商: MSM7542
Semiconductor
MSM7541/7542
13/20
AC Characteristics (Continued)
Absolute Level (Initial Difference)
Nidle T
–70
–68
dBmOp
Nidle R
–76
AV T
0.338
0.35
0.362
AV R
0.483
0.50
0.518
Vrms
1020
Absolute Delay
AV Tt
–0.2
+0.2
0
AV Rt
–0.2
+0.2
Td
1020
0.60
ms
0
A to A
BCLOCK
= 64 kHz
Transmit Group Delay
tgd T1
tgd T2
tgd T3
tgd T4
tgd T5
tgd R1
tgd R2
tgd R3
tgd R4
tgd R5
0.19
0.11
0.02
0.05
0.07
0.00
0.00
0.00
0.09
0.12
85
70
0.75
0.35
0.125
0.125
0.75
0.75
0.35
0
ms
*4
Receive Group Delay
75
65
0.125
0.125
0.75
ms
0
–74
Idle Channel Noise
AIN = SG
*1 *2
*1
dB
dB
V
DD
= 3.3 V
Ta = 25°C
V
DD
= +3 to
3.8 V
Ta = –30
to +85°C
Absolute Level
(Deviation of Temperature and Power)
*3
500
600
1000
2600
2800
500
600
1000
2600
2800
Crosstalk Attenuation
CR T
CR R
1020
dB
0
TRANS
RECV
RECV
TRANS
*4
Condition
(V
DD
= 3.0 V to 3.8 V, Ta = –30°C to +85°C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Level
(dBm0)
Freq.
(Hz)
*3
*1 Psophometric filter is used
*2 Input "0" code to PCMIN
*3 AVR is defined at VFRO output
*4 Minimum value of the group delay distortion
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