WM8951L Wolfson Microelectronics plc, WM8951L Datasheet

WM8951L

Manufacturer Part Number

WM8951L

Description

Stereo ADC with Microphone Input and Clock Generator

Manufacturer

Wolfson Microelectronics plc

Datasheet

1.WM8951L.pdf (42 pages)

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

WM8951LGEFL

Manufacturer:

Panasonic

Quantity:

350

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DESCRIPTION

The WM8951L is a low power stereo ADC with an

integrated microphone interface and crystal oscillator for

clock generation. The WM8951L is ideal for voice recorders,

wireless microphones and games console accessories.

Stereo line and mono microphone level audio inputs are

provided, along with a mute function, programmable line

level volume control and a bias voltage output suitable for

an electret type microphone.

Stereo 24-bit multi-bit sigma delta ADCs are used with

oversampling decimation filters. Digital audio input word

lengths from 16-32 bits and sampling rates from 8kHz to

96kHz are supported.

The device is controlled via a 2 or 3 wire serial interface.

The interface provides access to all features including

volume controls, mutes and extensive power management

facilities. The device is available in a small 28 lead 5x5mm

quad flat leadless package (QFN).

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS plc

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FEATURES

•

APPLICATIONS

•

Audio Performance

Sampling Frequency: 8kHz – 96kHz

Selectable ADC High Pass Filter

2 or 3-Wire MPU Serial Control Interface

Programmable Audio Data Interface Modes

Microphone Input and Electret Bias with Side Tone Mixer

Available in 5x5mm 28-lead QFN package

Wireless microphones

Voice recorders

Games console accessories

ADC SNR 90dB (‘A’ weighted) at 3.3V, 85dB at 1.8V

Low Power

1.42 – 3.6V Digital Supply Operation

1.8 – 3.6V Analogue Supply Operation

16/20/24/32 bit Word Lengths

Master or Slave Clocking Mode

S, Left, Right Justified or DSP

Production Data, December 2007 Rev 4.1

WM8951L

www.DataSheet4U.com

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