WM8728SEDS-V 查看數據表（PDF） - Wolfson Microelectronics plc

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WM8728SEDS-V

24-bit, 192kHz Stereo DAC with Volume Control

Wolfson Microelectronics plc 

WM8728

POWER SUPPLY TIMING

Production Data

Figure 3 Power Supply Timing Requirements

Test Conditions

AVDD, DVDD = 5V, AGND = 0V, DGND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs unless otherwise stated.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

Power Supply Input Timing Information

DVDD set up time to AVDD

rising edge

TPSU

Measured from DVDD=+2.4V to

100

AVDD=+0.7V

UNIT

µs

POWER ON RESET (POR)

The WM8728 has an internal power-on-reset (POR) circuit which is used to reset the digital logic

into a default state after power up. A block diagram of the reset circuit is shown in Figure 4

Figure 4 Block Diagram of Power-On-Reset Circuit

w

PD, Rev 4.6 August 2008

9

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