MSM7508BRS Просмотр технического описания (PDF) - Oki Electric Industry
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MSM7508BRS Datasheet PDF : 17 Pages
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¡ Semiconductor
MSM7508B/7509B
AC Characteristics (Continued)
(VDD = +5 V ±5%, Ta = –10°C to +70°C)
Parameter
Idle Channel Noise
Symbol
Nidle T
Nidle R
Freq.
(Hz)
—
—
Level Condition
(dBm0)
AIN = SG
—
*1 *2
— *2 *3
Min.
—
—
Typ.
–72.5
–70.5
–76.5
Max. Unit
–70
–69 dBmOp
–74
AV T
Absolute Level (Initial Difference)
1020
0
AV R
0.5671
0.5671
0.6007
0.6007
0.6363
0.6363
Vrms
Absolute Delay
Transmit Group Delay
Receive Group Delay
Crosstalk Attenuation
Td 1020
tgd T1
tgd T2
tgd T3
tgd T4
tgd T5
tgd R1
tgd R2
tgd R3
tgd R4
tgd R5
CR T
CR R
500
600
1000
2600
2800
500
600
1000
2600
2800
1020
A to A
0 BCLOCK
—
= 64 kHz
*4 —
—
0
—
—
—
*4 —
—
0
—
—
—
TRANS Æ RECV 75
0
RECV Æ TRANS 70
—
0.60 ms
0.19 0.75
0.11 0.35
0.02 0.125 ms
0.05 0.125
0.07 0.75
0.00 0.75
0.00 0.35
0.00 0.125 ms
0.09 0.125
0.12 0.75
85
—
dB
77
—
*1 Psophometric filter is used
*2 Upper is specified for the MSM7508B, lower for the MSM7509B
*3 MSM7508B: All "0" code to PCMIN, MSM7509B: "11010101" to PCMIN
*4 Minimum value of the group delay distortion
10/17
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