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CS42406 Arkusz danych(PDF) 23 Page - Cirrus Logic |
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CS42406 Arkusz danych(HTML) 23 Page - Cirrus Logic |
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23 / 50 page ![]() CS42406 23 SWITCHING CHARACTERISTICS - ADC SERIAL AUDIO PORT Logic “0” = GND = 0 V; Logic “1” = VLS, CL = 20 pF. NOTE: Certain parameters depend on the 256x/384x (pin6) mode setting and are separated below. Parameter Symbol Min Typ Max Unit MCLK Duty Cycle 45 - 55 % Master Mode ADC_SCLK falling to ADC_LRCK tmslr -20 - 20 ns ADC_SCLK falling to SDOUT valid tsdo 0 - 32 ns Slave Mode Single-Speed* ADC_LRCK Frequency MCLK = 256, 384 Fs (÷1 or 1.5) (Note 18) MCLK = 512, 768 Fs (÷2 or 3) Fs Fs 4 43 -50 50 kHz kHz ADC_LRCK Duty Cycle 40 - 60 % SDOUT valid before ADC_SCLK rising tstp 10 - - ns SDOUT valid after ADC_SCLK rising thld 5- - ns ADC_SCLK falling to ADC_LRCK edge tslrd -20 - 20 ns Double-Speed* ADC_LRCK Frequency MCLK = 128, 192 Fs (÷1 or 1.5) (Note 18) MCLK = 256, 384 Fs (÷2 or 3) Fs Fs 50 86 -100 100 kHz kHz ADC_LRCK Duty Cycle 40 - 60 % SDOUT valid before ADC_SCLK rising tstp 10 - - ns SDOUT valid after ADC_SCLK rising thld 5- - ns ADC_SCLK falling to ADC_LRCK edge tslrd -20 - 20 ns Quad-Speed* ADC_LRCK Frequency (Note 18) MCLK = 128 Fs (÷2 or 3) Fs 172 - 200 kHz ADC_LRCK Duty Cycle 40 - 60 % SDOUT valid before ADC_SCLK rising tstp 10 - - ns SDOUT valid after ADC_SCLK rising thld 5- - ns ADC_SCLK falling to ADC_LRCK edge tslrd -8 - 8 ns |
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