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CS5101A-BL8 Datasheet(PDF) 8 Page - Cirrus Logic |
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CS5101A-BL8 Datasheet(HTML) 8 Page - Cirrus Logic |
8 / 39 page CS5101A CS5102A 8 DS45F6 ANALOG CHARACTERISTICS, CS5102A (Continued) Notes: 17. Conversion time scales directly to the master clock speed. The times shown are for synchronous, internal loopback (FRN) mode. In PDT, RBT, and SSC modes, asynchronous delay between the falling edge of HOLD and the start of conversion may add to the apparent conversion time. This delay will not exceed 1 master clock cycle + 140 ns. 18. The CS5102A requires 6 clock cycles of coarse charge, followed by a minimum of 5.625 µs of fine charge. FRN mode allows 9 cycles for fine charge which provides for the minimum 5.625 µs with a 1.6 MHz clock, however; in PDT, RBT, or SSC modes and at clock frequencies of less than 1.6 MHz, fine charge may be less than 9 clock cycles. 19. Throughput is the sum of the acquisition and conversion times. It will vary in accordance with conditions affecting acquisition and conversion times, as described above. 20. All outputs unloaded. All inputs at VD+ or DGND. See table below for power dissipation versus clock frequency. 21. With 300 mV p-p, 1-kHz ripple applied to each supply separately in the bipolar mode. Rejection improves by 6 dB in the unipolar mode to 90 dB. Figure 25 shows a plot of typical power supply rejection versus frequency. Parameter* Symbol CS5102A-J CS5102-B Unit Min Typ Max Min Typ Max Specified Temperature Range - 0 to +70 -40 to +85 ºC Analog Input Aperture Time - - 30 - - 30 - ns Aperture Jitter - - 100 - - 100 - ps Input Capacitance (Note 5) Unipolar Mode Bipolar Mode - - - - 320 200 425 265 - - 320 200 425 265 pF pF Conversion and Throughput Conversion Time (Note 17) tc - - 40.625 - - 40.625 µs Acquisition Time (Note 18) ta - - 9.375 - - 9.375 µs Throughput (Note 19) ftp 20 - - 20 - - kSps Power Supplies Power Supply Current (Note 20) Positive Analog Negative Analog (SLEEP High) Positive Digital Negative Digital IA+ IA- ID+ ID- - - - - 2.4 -2.4 2.5 -1.5 3.5 -3.5 3.5 -2.5 - - - - 2.4 -2.4 2.5 -1.5 3.5 -3.5 3.5 -2.5 mA mA mA mA Power Consumption (Note 10, Note 20) (SLEEP High) (SLEEP Low) Pdo Pds - - 44 1 65 - - - 44 1 65 - mW mW Power Supply Rejection (Note 21) Positive Supplies Negative Supplies PSR PSR - - 84 84 - - - - 84 84 - - dB dB Typical Power (mW) CLKIN (MHz) 34 0.8 37 1.0 39 1.2 41 1.4 44 1.6 |
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