Silicon Laboratories SI2493/57/34/15/04 - Manual (Page 9)

AN93
Rev. 1.3 9
1.1. Selection Guide
Tables 1 through 3 list the modulations, protocols, carriers, tones and interface modes supported by the Si2494/39
and Si2493/57/34/15/04 ISOmodem family. The Si2493 supports all modulations and protocols from Bell 103
through V.92. The Si2457 supports all modulations and protocols from Bell 103 through V.90. The Si2434 supports
all modulations and protocols from Bell 103 through V.34. The Si2415 supports all modulations and protocols from
Bell 103 through V.32bis. The Si2404 supports all modulations and protocols from Bell 103 through V.22bis.
Table 1. Modulations
Modulation Data Rates (bps) Modulation Si2494/93 Si2457 Si2439/34 Si2415 Si2404
V.92* 48k, 40k, 32k, 24k PCM 
V.90* 56k, 54.6k, 53.3k, 52k, 50.6k,
49.3k, 48k, 46.6k, 45.3k, 44k,
42.6k, 41.3k, 40k, 38.6k,
37.3k, 36k, 34.6k, 33.3k, 32k,
30.6k, 29.3k, 28k
PCM  
V.34* 33.6k, 31.2k, 28.8k, 26.4k, 24k,
21.6k, 19.2k, 16.8k, 14.4k, 12k,
9600, 7200, 4800, 2400
TCM   
V.32bis* 14.4k, 12k, 9600, 7200, 4800 TCM    
V.32* 9600
9600, 4800
TCM
QAM
   
V.29FC* 9600 QAM     *
V.23 1200 FSK     
V.22bis 2400, 1200 QAM     
V.22 1200 DPSK     
Bell 212A 1200 DPSK     
V.21 300 FSK     
Bell 103 300 FSK     
*Note: With the Si3018 DAA only.
Table 2. Protocols
Protocol * Function Si2494/93 Si2457 Si2439/34 Si2415 Si2404
V.44 Compression

V.42bis Compression
    
V.42 Error Correction
    
MNP5 Compression    
MNP2-4 Error Correction     
*Note: The Si2494/93/57/39/34/15/04 family allows any supported protocol combined with any modulation.