WM8976 データシートの表示（PDF） - Wolfson Microelectronics plc

部品番号

コンポーネント説明

メーカー

WM8976

Stereo CODEC With Speaker Driver

Wolfson Microelectronics plc 

Pre-Production

WM8976

Test Conditions

DCVDD=1.8V, AVDD=DBVDD=SPKVDD= 3.3V, TA = +25oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise

stated.

PARAMETER

SYMBOL TEST CONDITIONS

MIN

TYP

MAX

UNIT

Power Supply Rejection Ratio

PSRR

RL = 10kΩ

52

dB

(50Hz-22kHz)

RL = 10kΩ

56

dB

SPKVDD=5V (boost)

Microphone Bias

Bias Voltage

VMICBIAS

MBVSEL=0

0.9*AVDD

V

MBVSEL=1

0.65*AVDD

V

Bias Current Source

IMICBIAS

3

mA

Output Noise Voltage

Vn

1K to 20kHz

15

nV/√Hz

Digital Input / Output

Input HIGH Level

VIH

0.7×DBVDD

V

Input LOW Level

VIL

0.3×DBVDD

V

Output HIGH Level

VOH

IOL=1mA

0.9×DBVDD

V

Output LOW Level

VOL

IOH-1mA

0.1xDBVDD

V

Input capacitance

TBD

pF

Input leakage

TBD

pA

w

PP Rev 3.0 April 2006

9

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