WM9711 datasheet(49/66 Pages) WOLFSON

部件名	WM9711

功能描述	LOW POWER AUDIO CODEC FOR PORTABLE APPLICATIONS

PDF	66 Pages

Scroll/Zoom	100%

制造商	WOLFSON [Wolfson Microelectronics plc]

网页	http://www.wolfsonmicro.com

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49 / 66 page

Production Data

WM9711L

PD Rev 4.1 April 2004

AC-Link powerdown occurs when PR4 (register 26h, bit 12) is set (see “Power Management”

section).

PARAMETER

SYMBOL

MIN

TYP

MAX

UNIT

End of Slot 2 to BITCLK and SDATAIN

low

tS2_PDOWN

1.0

µs

COLD RESET (ASYNCHRONOUS, RESETS REGISTER SETTINGS)

RESETB

BITCLK

RST_LOW

RST2CLK

Figure 13 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

SYMBOL

MIN

TYP

MAX

UNIT

RESETB active low pulse width

tRST_LOW

1.0

µs

RESETB inactive to BITCLK startup

delay

tRST2CLK

162.8

WARM RESET (ASYNCHRONOUS, PRESERVES REGISTER SETTINGS)

Figure 14 Warm Reset Timing

PARAMETER

SYMBOL

MIN

TYP

MAX

UNIT

SYNC active high pulse width

tSYNC_HIGH

1.3

µs

SYNC inactive to BITCLK startup

delay

tRST2CLK

162.4

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