WM8987LGECOSLASHV datasheet(7/58 Pages) WOLFSON

Part #	WM8987LGECO/V

Description	Stereo CODEC for Portable Audio Applications

PDF	58 Pages

Scroll/Zoom	100%

Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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7 / 58 page

Pre-Production

WM8987L

PP Rev 3.0 January 2007

Test Conditions

DCVDD = 1.5V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, TA = +25

oC, 1kHz signal, fs = 48kHz, PGA gain = 0dB,

ADCOSR = DACOSR = 1 (64 fs), 24-bit audio data unless otherwise stated.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Signal to Noise Ratio

(A-weighted)

SNR

AVDD=HPVDD =3.3V

Analogue Reference Levels

Midrail Reference Voltage

VMID

–3%

AVDD/2

+3%

Buffered Reference Voltage

VREF

–3%

AVDD/2

+3%

Microphone Bias

Bias Voltage

VMICBIAS

3mA load current

–5%

0.9

×AVDD

+ 5%

Bias Current Source

IMICBIAS

Output Noise Voltage

1K to 20kHz

nV/

√Hz

Digital Input / Output

Input HIGH Level

VIH

0.7

×DBVDD

Input LOW Level

VIL

0.3

×DBVDD

Output HIGH Level

VOH

IOH = +1mA

0.9

×DBVDD

Output LOW Level

VOL

IOL = -1mA

0.1

×DBVDD

WM8987LGECO/V Datasheet(PDF) 7 Page - Wolfson Microelectronics plc

WM8987LGECO/V Datasheet(HTML) 7 Page - Wolfson Microelectronics plc

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