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AD1895YRS Datenblatt(PDF) 3 Page - Analog Devices |
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AD1895YRS Datenblatt(HTML) 3 Page - Analog Devices |
3 / 24 page REV. B –3– AD1895 DIGITAL TIMING (–40 C < TA < +105 C, VDD_CORE = 3.3 V 5%, VDD_IO = 5.0 V 10%) Parameter 1 Min Max Unit tMCLKI MCLK_IN Period 33.3 ns fMCLK MCLK_IN Frequency 30.0 2, 3 MHz tMPWH MCLK_IN Pulsewidth High 9 ns tMPWL MCLK_IN Pulsewidth Low 12 ns INPUT SERIAL PORT TIMING tLRIS LRCLK_I Setup to SCLK_I 8 ns tSIH SCLK_I Pulsewidth High 8 ns tSIL SCLK_I Pulsewidth Low 8 ns tDIS SDATA_I Setup to SCLK_I Rising Edge 8 ns tDIH SDATA_I Hold from SCLK_I Rising Edge 3 ns OUTPUT SERIAL PORT TIMING tTDMS TDM_IN Setup to SCLK_O Falling Edge 3 ns tTDMH TDM_IN Hold from SCLK_O Falling Edge 3 ns tDOPD SDATA_O Propagation Delay from SCLK_O, LRCLK_O 20 ns tDOH SDATA_O Hold from SCLK_O 3 ns tLROS LRCLK_O Setup to SCLK_O (TDM Mode Only) 5 ns tLROH LRCLK_O Hold from SCLK_O (TDM Mode Only) 3 ns tSOH SCLK_O Pulsewidth High 10 ns tSOL SCLK_O Pulsewidth Low 5 ns tRSTL RESET Pulsewidth Low 200 ns NOTES 1Refer to Timing Diagrams section. 2The maximum possible sample rate is: FS MAX = fMCLK /138. 3f MCLK of up to 34 MHz is possible under the following conditions: 0 °C < T A < 70 °C, 45/55 or better MCLK_IN duty cycle. Specifications subject to change without notice. TIMING DIAGRAMS tLRIS tSIH tDIS tSIL tDIH tLROS tSOH tDOPD tSOL tDOH tLROH tTDMS tTDMH LRCLK_I SCLK I SDATA I LRCLK O SCLK O SDATA O LRCLK O SCLK O TDM IN Figure 1. Input and Output Serial Port Timing (SCLK_I/O, LRCLK_I/O, SDATA_I/O, TDM_IN) tRSTL MCLK IN RESET Figure 2. RESET Timing tMPWH tMPWL Figure 3. MCLK_IN Timing |
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