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CS5102A-JLZ Datasheet(PDF) 5 Page - Cirrus Logic |
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CS5102A-JLZ Datasheet(HTML) 5 Page - Cirrus Logic |
5 / 39 page CS5101A CS5102A DS45F6 5 ANALOG CHARACTERISTICS, CS5101A (Continued) Notes: 5. Applies only in the track mode. When converting or calibrating, input capacitance will not exceed 30 pF. 6. Conversion time scales directly to the master clock speed. The times shown are for synchronous, internal loopback (FRN) mode) with 8.0 MHz CLKIN. 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 1.5 master clock cycles + 10 ns. In PDT, RBT, and SSC modes, CLKIN can be increased as long as the HOLD sample rate is 100 kHz max. 7. The CS5101A requires 6 clock cycles of coarse charge, followed by a minimum of 1.125 µs of fine charge. FRN mode allows 9 cycles for fine charge which provides for the minimum 1.125 µs with an 8MHz clock, however; in PDT, RBT, or SSC modes and at clock frequencies of 8 MHz or less, fine charge may be less than 9 clock cycles. This reflects the typical specification (6 clock cycles + 1.125 µs). 8. 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. 9. All outputs unloaded. All inputs at VD+ or DGND. 10. Power consumption in the sleep mode applies with no master clock applied (CLKIN held high or low). 11. 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 CS5101A-J CS5101A-B Unit Min Typ Max Min Typ Max Specified Temperature Range - 0 to +70 -40 to +85 ºC Analog Input Aperture Time - - 25 - - 25 - 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 6) tc - - 8.12 - - 8.12 µs Acquisition Time (Note 7) ta - - 1.88 - - 1.88 µs Throughput (Note 8) ftp 100 - - 100 - - kSps Power Supplies Power Supply Current (Note 9) Positive Analog Negative Analog (SLEEP High) Positive Digital Negative Digital IA+ IA- ID+ ID- - - - - 21 -21 11 -11 28 -28 15 -15 - - - - 21 -21 11 -11 28 -28 15 -15 mA mA mA mA Power Consumption (Note 9, Note 10) (SLEEP High) (SLEEP Low) Pdo Pds - - 320 1 430 - - - 320 1 430 - mW mW Power Supply Rejection (Note 11) Positive Supplies Negative Supplies PSR PSR - - 84 84 - - - - 84 84 - - dB dB |
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