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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC2159 датащи(PDF) 7 Page - Linear Technology |
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LTC2159 датащи(HTML) 7 Page - Linear Technology |
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7 / 32 page  LTC2159 7 2159f SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS All Output Modes PSLEEP Sleep Mode Power 1 mW PNAP Nap Mode Power 10 mW PDIFFCLK Power Increase with Differential Encode Mode Enabled (No Increase for Nap or Sleep Modes) 20 mW power requireMenTs The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 9) TiMing characTerisTics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS fS Sampling Frequency (Note 10) l 1 20 MHz tL ENC Low Time (Note 8) Duty Cycle Stabilizer Off Duty Cycle Stabilizer On l l 20 2 25 25 500 500 ns ns tH ENC High Time (Note 8) Duty Cycle Stabilizer Off Duty Cycle Stabilizer On l l 20 2 25 25 500 500 ns ns tAP Sample-and-Hold Acquisition Delay Time 0 ns DIGITAL DATA OUTPUTS (CMOS MODES: FULL DATA RATE AND DOUBLE DATA RATE) tD ENC to Data Delay CL = 5pF (Note 8) l 1.1 1.7 3.1 ns tC ENC to CLKOUT Delay CL = 5pF (Note 8) l 1 1.4 2.6 ns tSKEW DATA to CLKOUT Skew tD – tC (Note 8) l 0 0.3 0.6 ns Pipeline Latency Full Data Rate Mode Double Data Rate Mode 6 6.5 Cycles Cycles DIGITAL DATA OUTPUTS (LVDS MODE) tD ENC to Data Delay CL = 5pF (Note 8) l 1.1 1.8 3.2 ns tC ENC to CLKOUT Delay CL = 5pF (Note 8) l 1 1.5 2.7 ns tSKEW DATA to CLKOUT Skew tD – tC (Note 8) l 0 0.3 0.6 ns Pipeline Latency 6.5 Cycles SPI PORT TIMING (Note 8) tSCK SCK Period Write Mode Readback Mode, CSDO = 20pF, RPULLUP = 2k l l 40 250 ns ns tS CS to SCK Setup Time l 5 ns tH SCK to CS Setup Time l 5 ns tDS SDI Setup Time l 5 ns tDH SDI Hold Time l 5 ns tDO SCK Falling to SDO Valid Readback Mode, CSDO = 20pF, RPULLUP = 2k l 125 ns |
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