Specifications

AN93
Rev. 0.9 107
3.5.1. PCM/Voice Mode (24-Pin TSSOP Only)
The Si3000 is used in conjunction with the Si2493/57/34/15/04 to transmit and receive 16-bit voice samples to and
from telephone lines as shown in Figure 21.
Figure 21. Voice Mode Block Diagram
Figure 22 shows the actual circuit connection between the Si2493/57/34/15/04 and the Si3000.
Si2457 Modem
Si3000 Voice Codec
NexGen
DAA
Handset
HOST
AT commands
Responses
2-wire
SDISDO
FSYNC MCLK
CLKOUT
SDI
SDO
FSYNC
TDMA Interface