SI2457-D-FS Silicon Laboratories Inc, SI2457-D-FS Datasheet - Page 197

• Manufacturer Part Number: SI2457-D-FS
• Description: IC ISOMODEM SYSTEM-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2457-D-FS

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

AT:U199|A
AT+VLS=0
AT+VLS=13
AT:U0B1,0500
AT:U0B5,0200
AT:U72,0110
AT:U72,05B3
AT:U72,065C
AT:U72,075E
AT:U72,0900
AT+VSP=0
AT:U199&FFF5
Host to Modem Commands / Data
Table 120.
Handset Configuration
Modem to Host
Result Codes/
Rev. 1.3
Data
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Mute the microphone and speaker paths to
the codec.
Disable voice mode. Used as a transition
point between non-zero +VLS voice modes.
Setup off-hook voice mode. See
on page 190 for details.
Restore Si3000-to-DAA transmit gain path.
Restore DAA-to-Si3000 receive gain path.
Configure Si3000 Register 1:
Enable speaker driver
Disable line output driver
Disable telephone instrument driver
Enable MBIAS output
Configure Si3000 Register 5:
10 dB Line In gain
Mute Line In
20 dB MIC input gain
Enable MIC input
Mute telephone instrument input
Enable IIR filter
Configure Si3000 Register 6:
0 dB RX PGA gain
Disable Line Out
Disable telephone instrument output
Configure Si3000 Register 7:
0 dB RX PGA gain
Enable SPKRL
Mute SPKRR
Configure Si3000 Register 9:
0 dB Line Out attenuation
0 dB Speaker output attenuation
Select handset voice path. See Figure 29 on
page 188 for details.
Enable the microphone and speaker paths
to the codec.
Local Modem Actions
AN93
Table 117
197