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PCM3168APAPR Datasheet(PDF) 28 Page - Texas Instruments |
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PCM3168APAPR Datasheet(HTML) 28 Page - Texas Instruments |
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28 / 66 page  BCKAD/DA (Output) LRCKAD/DA (Output) DOUT1/2/3 DIN1/2/3/4 t DOD t LRD 1.4V 0.5 VDD ´ 0.5 VDD ´ 0.5 VDD ´ t BCH t BCL t BCY t DIS t DIH t LRW PCM3168A PCM3168A-Q1 SBAS452 – SEPTEMBER 2008 ......................................................................................................................................................................................... www.ti.com Timing Requirements for Figure 44(1) SYMBOL DESCRIPTION MIN TYP MAX UNIT BCKAD cycle time 75 ns tBCY BCKDA cycle time 40 ns BCKAD pulse width high 35 ns tBCH BCKDA pulse width high 15 ns BCKAD pulse width low 35 ns tBCL BCKDA pulse width low 15 ns LRCKAD/DA pulse width high (DSP format) tBCY tLRW LRCKAD/DA pulse width high (TDM format) tBCY 1/fS – tBCY tLRS LRCKAD/DA setup time to BCKAD/DA rising edge 10 ns tLRH LRCKAD/DA hold time to BCKAD/DA rising edge 10 ns tDIS DIN1/2/3/4 setup time to BCKDA rising edge 10 ns tDIH DIN1/2/3/4 hold time to BCKDA rising edge 10 ns tDOD DOUT1/2/3 delay time from BCKAD falling edge 0 30 ns (1) Load capacitance of output is 20 pF. Figure 45. Audio Interface Timing Requirements for DSP and TDM Data Formats (Master Mode) Timing Requirements for Figure 45(1) SYMBOL DESCRIPTION MIN TYP MAX UNIT BCKAD/DA cycle time (DSP format) 1/(64 fS) tBCY BCKAD/DA cycle time (TDM format, single rate) 1/(256 fS) BCKAD/DA cycle time (TDM format, dual rate) 1/(128 fS) tBCH BCKAD/DA pulse width high 0.4 tBCY 0.5 tBCY 0.6 tBCY tBCL BCKAD/DA pulse width low 0.4 tBCY 0.5 tBCY 0.6 tBCY LRCKAD/DA pulse width high (DSP format) tBCY tLRW LRCKAD/DA pulse width high (TDM format) 1/(2 fS) tLRD LRCKAD/DA delay time from BCKAD/DA falling edge –10 20 ns tDIS DIN1/2/3/4 setup time to BCKDA rising edge 10 ns tDIH DIN1/2/3/4 hold time to BCKDA rising edge 10 ns tDOD DOUT1/2/3 delay time from BCKAD falling edge –10 20 ns (1) Load capacitance of output is 20 pF. 28 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): PCM3168A PCM3168A-Q1 |
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