WM8750LSEFLSLASHR datasheet(8/62 Pages) WOLFSON

Nome de Peças	WM8750LSEFL/R

Descrição Electrónicos	Stereo CODEC for Portable Audio Applications

PDF	62 Pages

Scroll/Zoom	100%

Fabricante Electrônico	WOLFSON [Wolfson Microelectronics plc]

Página de início	http://www.wolfsonmicro.com

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WM8750L

Production Data

PD Rev 4.2 August 2005

Test Conditions

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

oC, 1kHz signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio

data unless otherwise stated.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Speaker Output (LOUT2/ROUT2 with 8

Ω

Ω bridge tied load, ROUT2INV=1)

Output Power at 1% THD

THD = 1%

330

mW (rms)

Abs. Max Power Ouptut

POmax

500

mW (rms)

Total Harmonic Distortion

THD

Po=200mW, RL=8

Ω,

HPVDD=3.3V

-63

0.07

Signal to Noise Ratio

(A-weighted)

SNR

HPVDD=3.3V, RL=8

Ω

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

HPDETECT (pin 23)

Input HIGH Level

VIH

0.7

×AVDD

Input LOW Level

VIL

0.3

×AVDD

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