MSM7557 Ver la hoja de datos (PDF) - Oki Electric Industry
Número de pieza
componentes Descripción
Fabricante
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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