WM9710SEFL 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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WM9710SEFL

AC’97 Audio CODEC and Mixer with Integrated Headphone Driver

Wolfson Microelectronics plc 

WM9710

DETAILED TIMING DIAGRAMS

Production Data

Test Characteristics:

AVDD = 3.3V, DVDD = 3.3V, AGND = 0V …………..TA = 0oC to +70oC, unless otherwise stated.

All measurements are taken at 10% to 90% DVDD, unless otherwise stated. All the following timing information is guaranteed,

not tested.

AC-LINK LOW POWER MODE

SLOT 1 SLOT 2

SYNC

BITCLK

SDATAOUT

WRITE

TO 0X20

DATA PR4

tS2_PDOWN

SDATAIN

DON'T

CARE

COLD RESET

Figure 4 AC-Link Powerdown Timing

PARAMETER

SYMBOL

MIN

End of slot 2 to BITCLK SDATAIN

low

tS2_PDOWN

TYP

MAX

1.0

UNIT

µs

RESETB

tRST_LOW

tRST2CLK

BITCLK

Figure 5 Cold Reset Timing

Note:

For correct operation SDATAOUT and SYNC must be held LOW for entire RESETB active low

period otherwise the device may enter test mode. See AC’97 specification or Wolfson

applications note WAN104 for more details.

PARAMETER

RESETB active low pulse width

RESETB inactive to BITCLK

startup delay

SYMBOL

tRST_LOW

tRST2CLK

MIN

1.0

162.8

TYP

MAX

UNIT

µs

ns

w

PD Rev 4.0 December 2003

11

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