MSM7557 데이터 시트보기 (PDF) - Oki Electric Industry
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MSM7557 Datasheet PDF : 25 Pages
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¡ Semiconductor
MSM7557
(Continued)
Name
SEC
RCK1
RCK2
BYP
Device test input.
SEC shall be connected to GND.
Voice band select.
RCK1
0
X
1
RCK2
1
0
1
Function
Upper Limit of Voice Band
3306 Hz
3400 Hz
3500 Hz
Compandor path selection.
BYP
0
1
Transmit side
Compressor is connected to the path.
Compressor is bypassed to the path.
Receive side
Expander is connected to the path.
Expander is bypassed to the path.
Modem data signaling rate select pin.
BR
BR
Date signaling rate
0
1200 bps
1
2400 bps
7/25
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