WM8912 查看數據表（PDF） - Wolfson Microelectronics plc

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WM8912

Ultra Low Power DAC with Headphone Driver for Portable Audio Applications

Wolfson Microelectronics plc 

WM8912

Production Data

SIGNAL TIMING REQUIREMENTS

COMMON TEST CONDITIONS

Unless otherwise stated, the following test conditions apply throughout the following sections:

• Ambient temperature = +25°C

• DCVDD = 1.0V

• DBVDD = AVDD = CPVDD = 1.8V

• DGND = AGND = CPGND = 0V

Additional, specific test conditions are given within the relevant sections below.

MASTER CLOCK

MCLK

Figure 1 Master Clock Timing

tMCLKY

tMCLKL tMCLKH

Master Clock Timing

PARAMETER

MCLK cycle time

MCLK duty cycle

SYMBOL

TMCLKY

TMCLKDS

TEST CONDITIONS

MCLK_DIV=1

MCLK_DIV=0

MIN

40

80

60:40

TYP

MAX

40:60

UNIT

ns

ns

w

PD, Rev 4.0, September 2010

14

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