SI2434-D-FT Silicon Laboratories Inc, SI2434-D-FT Datasheet - Page 30
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SI2434-D-FT
Manufacturer Part Number
SI2434-D-FT
Description
IC ISOMODEM SYSTEM-SIDE 24TSSOP
Manufacturer
Silicon Laboratories Inc
Specifications of SI2434-D-FT
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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AN93
2.5. SSI/Voice Mode (24-Pin TSSOP and 38-Pin QFN Only)
Voice mode is supported in the Si2439 and the Si2494. Table 25 lists the pin connections for the ISOmodem SSI
interface. This interface enables Voice Mode operation. See "7. Handset, TAM, and Speakerphone Operation" on
page 173 for additional information.
The Si3000 is used in conjunction with the ISOmodem to transmit and receive 16-bit voice samples to and from
telephone lines as shown in Figure 10.
30
HOST
TDMA Interface
AT commands
Responses
CLKOUT
FSYNC
RESET
Signal
SDO
SDI
FSYNC
Si3000 Voice Codec
Table 25. SSI Interface Pin Connection
Figure 10. Voice Mode Block Diagram
SDO
FSYNC
SDI
Si24xx Modem
SDI
Pin Number
(TSSOP-24)
SDO
Rev. 1.3
18
24
12
3
4
MCLK
CLKOUT
Pin Number
(QFN-38)
16
3
2
8
9
Si30xx
DAA
Handset
2- wire
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