msm7557 Oki Semiconductor, msm7557 Datasheet - Page 7

• Manufacturer Part Number: msm7557
• Description: Single Chip Msk Modem With Compandor For Cordless Telephone
• Manufacturer: Oki Semiconductor

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