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ADSP-21364SBBCZENG Datasheet(PDF) 30 Page - Analog Devices |
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ADSP-21364SBBCZENG Datasheet(HTML) 30 Page - Analog Devices |
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30 / 52 page ![]() Rev. PrB | Page 30 of 52 | September 2004 ADSP-21364 Preliminary Technical Data Table 26. Serial Ports—Enable and Three-State Parameter Min Max Unit Switching Characteristics tDDTEN 1 Data Enable from External Transmit SCLK 2 ns tDDTTE 1 Data Disable from External Transmit SCLK 7 ns tDDTIN 1 Data Enable from Internal Transmit SCLK –1 ns 1 Referenced to drive edge. Table 27. Serial Ports—External Late Frame Sync Parameter Min Max Unit Switching Characteristics tDDTLFSE 1 Data Delay from Late External Transmit FS or External Receive FS with MCE = 1, MFD = 0 7 ns tDDTENFS 1 Data Enable for MCE = 1, MFD = 01 0.5 ns 1 The tDDTLFSE and tDDTENFS parameters apply to Left-justified Sample Pair as well as DSP serial mode, and MCE = 1, MFD = 0. Figure 21. External Late Frame Sync1 1 This figure reflects changes made to support Left-justified Sample Pair mode. DRIVE SAMPLE DRIVE DAI_P20-1 (SCLK) DAI_P20-1 (FS) DAI_P20-1 (DATA CHANNEL A/B) DRIVE SAMPLE DRIVE LATE EXTERNAL TRANSMIT FS EXTERNAL RECEIVE FS WITH MCE = 1, MFD = 0 1ST BIT 2ND BIT DAI_P20-1 (SCLK) DAI_P20-1 (FS) 1ST BIT 2ND BIT tHFSE/I tSFSE/I tDDTE/I tDDTENFS tDDTLFSE tHDTE/I tSFSE/I tDDTE/I tDDTENFS tDDTLFSE tHDTE/I DAI_P20-1 (DATA CHANNEL A/B) NOTE SERIAL PORT SIGNALS (SCLK, FS, DATA CHANNEL A/B) ARE ROUTED TO THE DAI_P20-1 PINS USING THE SRU. THE TIMING SPECIFICATIONS PROVIDED HERE ARE VALID AT THE DAI_P20-1 PINS. tHFSE/I |
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