SI2493-D-FS Silicon Laboratories Inc, SI2493-D-FS Datasheet - Page 280

• 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
Figure 59. Adobe Audition Spectral View of a Good V.22 Transaction
An important parameter that is not obvious at first glance is the resolution in “bands” of the spectral display. There
is a tradeoff that must always be considered. This is set up in the Options->Settings Display tab in the Adobe
Audition product. This parameter allows for finer and coarser vertical (frequency) resolution at the cost of time-
domain uncertainty. Figures 60 and 61 depict the same wave files but with 256 bands versus 2048 bands. One can
see better timing details in one graph compared with the other. The 256-band spectral display shown in Figure 60
shows the fine timing details of the protocol, but with poor frequency resolution. The 2048-band spectral display
shown in Figure 61 allows more precise frequency measurements and signal separation, but at the cost of
obtaining a coarser time resolution.
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