AD1985 データシートの表示（PDF） - Analog Devices

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AD1985

AC ’97 SoundMAX® Codec

Analog Devices 

AD1985

RESET

BIT_CLK

SDATA_IN

tRST_LOW

tRST2CLK

tTRI2ACTV

tTRI2ACTV

Figure 3. Cold Reset Timing (Codec is Supplying the Bit_CLK Signal)

tSYNC_HIGH

tSYNC2CLK

SYNC

BIT_CLK

BIT_CLK

tCLK_LOW

Figure 4. Warm Reset Timing

SLOT 1

SYNC

SLOT 2

SYNC

tCLK_HIGH

tCLK_PERIOD

tSYNC_LOW

tSYNC_HIGH

tSYNC_PERIOD

Figure 5. Clock Timing

BIT_CLK

tRISECLK

tFALLCLK

SYNC

tRISESYNC

tFALLSYNC

SDATA_IN

tRISEDIN

tFALLDIN

SDATA_OUT

tRISEDOUT

tFALLDOUT

Figure 6. Signal Rise and Fall Times

BIT_CLK

WRITE TO

SDATA_OUT 03 26

DATA

PR4

SDATA_IN

tS2_PDOWN

BIT_CLK NOT TO SCALE

Figure 7. AC Link Low Power Mode Timing

tCO

BIT_CLK VIH

tSETUP

VIL

SDATA_OUT

SDATA_IN

SYNC

VOH

VOL

tHOLD

Figure 8. AC Link Low Power Mode Timing

RESET

SDATA_OUT

SDATA_IN, BIT_CLK,

EAPD, SPDIF_OUT

AND DIGITAL I/O

tSETUP2RST

tOFF

Hi-Z

Figure 9. ATE Test Mode

Rev. A | Page 9 of 48

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