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ADSP-21060 Datasheet(PDF) 39 Page - Analog Devices |
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ADSP-21060 Datasheet(HTML) 39 Page - Analog Devices |
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39 / 64 page  ADSP-21060/ADSP-21060L/ADSP-21062/ADSP-21062L/ADSP-21060C/ADSP-21060LC Rev. H | Page 39 of 64 | March 2013 Link Ports —1 × CLK Speed Operation Table 23. Link Ports—Receive 5 V 3.3 V Unit Parameter Min Max Min Max Timing Requirements tSLDCL Data Setup Before LCLK Low1 3.5 3 ns tHLDCL Data Hold After LCLK Low 3 3 ns tLCLKIW LCLK Period (1 Operation) tCK tCK ns tLCLKRWL LCLK Width Low 6 6 ns tLCLKRWH LCLK Width High 55ns Switching Characteristics tDLAHC LACK High Delay After CLKIN High2, 3 18 + DT/2 28.5 + DT/2 18 + DT/2 28.5 + DT/2 ns tDLALC LACK Low Delay After LCLK High –3 +13 –3 +13 ns tENDLK LACK Enable From CLKIN 5 + DT/2 5 + DT/2 ns tTDLK LACK Disable From CLKIN 20 + DT/2 20 + DT/2 ns 1 For ADSP-21062, specification is 3 ns min. 2 LACK goes low with tDLALC relative to rise of LCLK after first nibble, but does not go low if the receiver’s link buffer is not about to fill. 3 For ADSP-21060C, specification is 18 + DT/2 ns min, 29 + DT/2 ns max. Table 24. Link Ports—Transmit 5 V 3.3 V Unit Parameter Min Max Min Max Timing Requirements tSLACH LACK Setup Before LCLK High1 18 18 ns tHLACH LACK Hold After LCLK High –7 –7 ns Switching Characteristics tDLCLK Data Delay After CLKIN (1 Operation)2 15.5 15.5 ns tDLDCH Data Delay After LCLK High3 32.5 ns tHLDCH Data Hold After LCLK High –3 –3 ns tLCLKTWL LCLK Width Low4 (tCK/2) – 2 (tCK/2) + 2 (tCK/2) – 1 (tCK/2) + 1.25 ns tLCLKTWH LCLK Width High5 (tCK/2) – 2 (tCK/2) + 2 (tCK/2) – 1.25 (tCK/2) + 1 ns tDLACLK LCLK Low Delay After LACK High6 (tCK/2) + 8.5 (3 tCK/2) + 17 (tCK/2) + 8 (3 tCK/2) + 17.5 ns tENDLK LACK Enable From CLKIN 5 + DT/2 5 + DT/2 ns tTDLK LACK Disable From CLKIN 20 + DT/2 20 + DT/2 ns 1 For ADSP-21060L/ADSP-21060LC, specification is 20 ns min. 2 For ADSP-21060L, specification is 16.5 ns max; for ADSP-21060LC, specification is 16.75 ns max. 3 For ADSP-21062, specification is 2.5 ns max. 4 For ADSP-21062, specification is (tCK/2) – 1 ns min, (tCK/2) + 1.25 ns max; for ADSP-21062L, specification is (tCK/2) – 1 ns min, (tCK/2) + 1.5 ns max; for ADSP-21060LC specification is (tCK/2) – 1 ns min, (tCK/2) + 2.25 ns max. 5 For ADSP-21062, specification is (tCK/2) – 1.25 ns min, (tCK/2) + 1 ns max; for ADSP-21062L, specification is (tCK/2) – 1.5 ns min, (tCK/2) + 1 ns max; for ADSP-21060C specification is (tCK/2) – 2.25 ns min, (tCK/2) + 1 ns max. 6 For ADSP-21062, specification is (tCK/2) + 8.75 ns min, (3 × tCK/2) + 17 ns max; for ADSP-21062L, specification is (tCK/2) + 8 ns min, (3 × tCK/2) + 17 ns max; for ADSP-21060LC specification is (tCK/2) + 8 ns min, (3 × tCK/2) + 18.5 ns max. |
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