Data Sheet

FSC-BT825
深圳市飞易通科技有限公司 www.feasycom.com
5.2.1 PCM Format
FrameSync is the synchronizing function used to control the transfer of DAC_Data and
ADC_Data. A Long FrameSync indicates the start of ADC_Data at the rising edge of
FrameSync, and a Short FrameSync indicates the start of ADC_Data at the falling edge of
FrameSnc.
Figure 7. Long FrameSync
Figure 8. Short FrameSync
5.2.2 Sign Extension and Zero Padding for 8-Bit and 13-Bit Samples
◆For 16-bit linear PCM output, 3 or 8 unused bits may be sign extended/zero padded.
Figure 9.
16-Bit Output Data with 8-Bit PCM Sample Data and Sign Extension
Figure 10
16-Bit Output Data with 8-Bit PCM Sample Data and Zero Padding
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