SI2493-D-FS Silicon Laboratories Inc, SI2493-D-FS Datasheet - Page 204

• Manufacturer Part Number: SI2493-D-FS
• Description: IC ISOMODEM SYSTEM-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2493-D-FS

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

AN93
204
Host to Modem Commands / Data
AT+VTS = [1000,0,100]
AT:U199&FFFD
AT+VSD = 129
AT:U0B1,0500
AT+VGR=128
AT:U72,065C
AT:U72,05B3
AT:U72,075E
AT:U72,0110
AT:U72,0900
AT+VSM = 4
AT:U199|A
AT:U199|8
Table 129. TAM Handset Record OGM
Rev. 1.3
Host Result
Codes/Data
Modem to
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Mute the microphone and speaker paths to
the codec.
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
Set the Si3000-to-RS232 receive gain
(UC0) for TAM Hands-Free.
Restore Si3000-to-DAA transmit gain path
to allow voice samples to reach FDV block
for silence detection. This allows the driver
to automatically end OGM recording.
Set sensitivity level for OGM recording
silence detection.
Select G.711U -law PCM, 8-bit, 64 kbps
format. The voice driver will need to track
the OGM format with the OGM PCM file.
Play user record tone prompt.
Mute speaker.
Enable microphone for OGM recording.
Local Modem Actions