WM9711 datasheet(47/66 Pages) WOLFSON

Part #	WM9711

Description	LOW POWER AUDIO CODEC FOR PORTABLE APPLICATIONS

PDF	66 Pages

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Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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47 / 66 page

Production Data

WM9711L

PD Rev 4.1 April 2004

INTERFACE TIMING

Test Characteristics:

DBVDD = 3.3V, DCVDD = 3.3V, DGND1 = DGND2 = 0V, TA = -25

°C to +85°C, unless otherwise stated.

CLOCK SPECIFICATIONS

BITCLK

SYNC

CLK_HIGH

CLK_LOW

CLK_PERIOD

SYNC_HIGH

SYNC_LOW

SYNC_PERIOD

Figure 9 Clock Specifications (50pF External Load)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNIT

BITCLK frequency

12.288

MHz

BITCLK period

tCLK_PERIOD

81.4

BITCLK output jitter

750

BITCLK high pulse width (Note 1)

tCLK_HIGH

40.7

BITCLK low pulse width (Note 1)

tCLK_LOW

40.7

SYNC frequency

kHz

SYNC period

tSYNC_PERIOD

20.8

µs

SYNC high pulse width

tSYNC_HIGH

1.3

µs

SYNC low pulse width

tSYNC_LOW

19.5

µs

Note:

1. Worst case duty cycle restricted to 45/55

DATA SETUP AND HOLD

Figure 10 Data Setup and Hold (50pF External Load)

Note:

Setup and hold times for SDATAIN are with respect to the AC’97 controller, not the

WM9711L.

WM9711 Datasheet(PDF) 47 Page - Wolfson Microelectronics plc

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