WM9701 データシートの表示（PDF） - Wolfson Microelectronics plc

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WM9701

Low Power AC’97 Multimedia Audio Codec

Wolfson Microelectronics plc 

Production Data

WM9701A

SERIAL INTERFACE

Test Conditions:

AVDD = 5V, GND = 0V, DVDD = 3.3V, GND = 0V, TA = 0oC to +70oC, unless otherwise stated. All

measurements are taken at 10% to 90% VDD, unless otherwise stated.

All the following timing information is guaranteed, not tested.

AC-LINK LOW POWER MODE

SLOT 1 SLOT 2

SYNC

BIT_CLK

SDATA_OUT

WRITE

TO 0X20

DATA PR4

tS2_PDOWN

SDATA_IN

DON’T

CARE

COLD RESET

Figure 1 AC-Link Power down Timing

PARAMETER

End of slot 2 to BIT_CLK

SDATA_IN low

SYMBOL

tS2_PDOWN

MIN

TYP

MAX

1.0

UNIT

µs

RESETB

tRST_LOW

tRST2CLK

BIT_CLK

Figure 2 Cold Reset Timing

PARAMETER

RESETB active low pulse width

RESETB inactive to BIT_CLK

startup delay

SYMBOL

tRST_LOW

tRST2CLK

MIN

1.0

162.8

TYP

MAX

UNIT

µs

ns

WOLFSON MICROELECTRONICS LTD.

PD Rev 3.2 January 2001

5

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