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CS42406 数据表(PDF) 21 Page - Cirrus Logic |
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CS42406 数据表(HTML) 21 Page - Cirrus Logic |
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21 / 50 page ![]() CS42406 21 SWITCHING CHARACTERISTICS - DAC SERIAL AUDIO PORT (Logic “0” = GND = 0 V, Logic “1” = VLS) * For a description of Speed Modes, please refer to Section 4.1.2 on page 30. Parameter Symbol Min Typ Max Unit MCLK Specifications MCLK Frequency 1.024 - 12.8 MHz 22 - 25.6 MHz MCLK Duty Cycle 45 - 55 % Single-Speed* DAC_LRCK Duty Cycle 45 - 55 % DAC_SCLK Frequency - - 128 ×Fs Hz DAC_SCLK Pulse Width Low tsclkl 20 - - ns DAC_SCLK Pulse Width High tsclkh 20 - - ns DAC_SCLK rising to DAC_LRCK edge delay tslrd 20 ns DAC_SCLK rising to DAC_LRCK edge setup time tslrs 20 ns SDINx valid to DAC_SCLK rising setup time tsdlrs 20 ns DAC_SCLK rising to SDINx hold time tsdh 20 ns Double-Speed* DAC_LRCK Duty Cycle 45 - 55 % DAC_SCLK Frequency - - 64 ×Fs Hz DAC_SCLK Pulse Width Low tsclkl 20 - - ns DAC_SCLK Pulse Width High tsclkh 20 - - ns DAC_SCLK rising to DAC_LRCK edge delay tslrd 20 ns DAC_SCLK rising to DAC_LRCK edge setup time tslrs 20 ns SDINx valid to DAC_SCLK rising setup time tsdlrs 20 ns DAC_SCLK rising to SDINx hold time tsdh 20 ns Quad-Speed* DAC_LRCK Duty Cycle 45 - 55 % DAC_SCLK Frequency - - MCLK/2 Hz DAC_SCLK Pulse Width Low tsclkl 20 - - ns DAC_SCLK Pulse Width High tsclkh 20 - - ns DAC_SCLK rising to DAC_LRCK edge delay tslrd 20 ns DAC_SCLK rising to DAC_LRCK edge setup time tslrs 20 ns SDINx valid to DAC_SCLK rising setup time tsdlrs 20 ns DAC_SCLK rising to SDINx hold time tsdh 20 ns |
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