Cirrus Logic, Inc. Codec with Headphone Driver WM8731

Description
The WM8731 is a low power stereo codec with an integrated headphone driver. 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 electric type microphone. Digital audio input word lengths from 16-32 bits and sampling rates from 8 kHz to 96 kHz are supported. Stereo audio outputs are buffered for driving headphones from a programmable volume control, line level outputs are also provided along with anti-thump mute and power up/down circuitry. The device is controlled via a 2 or 3 wire serial interface. The interface provides access to all features including volume controls, mutes, de-emphasis and extensive power management facilities. Features Stereo audio codec with integrated headphone driver (50mW on 16W @ 3.3V) 1.42 – 3.6 V digital supply 2.7 – 3.6 V analog supply (standard) 1.8 – 3.6 V analog supply (’L’ version) Playback mode power consumption < 18mW 100 dB SNR (‘A’ weighted @ 48kHz) DAC 90 dB SNR (‘A’ weighted @ 48kHz) ADC Sampling frequency: 8 – 96 kHz Master or slave clocking mode USB clocking mode can generate all common MP3 sample rates (incl. 441.kHz) directly from USB clock Output volume and mute controls Microphone input and electret bias with side tone mixer Selectable ADC high pass filter 2 or three-wire MPU serial control interface Programmable audio data interface modes 28-Pin SSOP package
Datasheet
Description
The WM8731 is a low power stereo codec with an integrated headphone driver. 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 electric type microphone. Digital audio input word lengths from 16-32 bits and sampling rates from 8 kHz to 96 kHz are supported. Stereo audio outputs are buffered for driving headphones from a programmable volume control, line level outputs are also provided along with anti-thump mute and power up/down circuitry. The device is controlled via a 2 or 3 wire serial interface. The interface provides access to all features including volume controls, mutes, de-emphasis and extensive power management facilities. Features Stereo audio codec with integrated headphone driver (50mW on 16W @ 3.3V) 1.42 – 3.6 V digital supply 2.7 – 3.6 V analog supply (standard) 1.8 – 3.6 V analog supply (’L’ version) Playback mode power consumption < 18mW 100 dB SNR (‘A’ weighted @ 48kHz) DAC 90 dB SNR (‘A’ weighted @ 48kHz) ADC Sampling frequency: 8 – 96 kHz Master or slave clocking mode USB clocking mode can generate all common MP3 sample rates (incl. 441.kHz) directly from USB clock Output volume and mute controls Microphone input and electret bias with side tone mixer Selectable ADC high pass filter 2 or three-wire MPU serial control interface Programmable audio data interface modes 28-Pin SSOP package
Datasheet

Suppliers

Company
Product
Description
Supplier Links
Codec with Headphone Driver - WM8731 - Cirrus Logic, Inc.
Austin, TX, USA
Codec with Headphone Driver
WM8731
Codec with Headphone Driver WM8731
The WM8731 is a low power stereo codec with an integrated headphone driver. 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 electric type microphone. Digital audio input word lengths from 16-32 bits and sampling rates from 8 kHz to 96 kHz are supported. Stereo audio outputs are buffered for driving headphones from a programmable volume control, line level outputs are also provided along with anti-thump mute and power up/down circuitry. The device is controlled via a 2 or 3 wire serial interface. The interface provides access to all features including volume controls, mutes, de-emphasis and extensive power management facilities. Features Stereo audio codec with integrated headphone driver (50mW on 16W @ 3.3V) 1.42 – 3.6 V digital supply 2.7 – 3.6 V analog supply (standard) 1.8 – 3.6 V analog supply (’L’ version) Playback mode power consumption < 18mW 100 dB SNR (‘A’ weighted @ 48kHz) DAC 90 dB SNR (‘A’ weighted @ 48kHz) ADC Sampling frequency: 8 – 96 kHz Master or slave clocking mode USB clocking mode can generate all common MP3 sample rates (incl. 441.kHz) directly from USB clock Output volume and mute controls Microphone input and electret bias with side tone mixer Selectable ADC high pass filter 2 or three-wire MPU serial control interface Programmable audio data interface modes 28-Pin SSOP package

The WM8731 is a low power stereo codec with an integrated headphone driver. 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 electric type microphone. Digital audio input word lengths from 16-32 bits and sampling rates from 8 kHz to 96 kHz are supported. Stereo audio outputs are buffered for driving headphones from a programmable volume control, line level outputs are also provided along with anti-thump mute and power up/down circuitry. The device is controlled via a 2 or 3 wire serial interface. The interface provides access to all features including volume controls, mutes, de-emphasis and extensive power management facilities.

Features

  • Stereo audio codec with integrated headphone driver (50mW on 16W @ 3.3V)
  • 1.42 – 3.6 V digital supply
  • 2.7 – 3.6 V analog supply (standard)
  • 1.8 – 3.6 V analog supply (’L’ version)
  • Playback mode power consumption < 18mW
  • 100 dB SNR (‘A’ weighted @ 48kHz) DAC
  • 90 dB SNR (‘A’ weighted @ 48kHz) ADC
  • Sampling frequency: 8 – 96 kHz
  • Master or slave clocking mode
  • USB clocking mode can generate all common MP3 sample rates (incl. 441.kHz) directly from USB clock
  • Output volume and mute controls
  • Microphone input and electret bias with side tone mixer
  • Selectable ADC high pass filter
  • 2 or three-wire MPU serial control interface
  • Programmable audio data interface modes
  • 28-Pin SSOP package
Supplier's Site Datasheet

Technical Specifications

  Cirrus Logic, Inc.
Product Category IC Interfaces
Product Number WM8731
Product Name Codec with Headphone Driver
Device Type Codec
Unlock Full Specs
to access all available technical data

Similar Products

Interface Transceiver IC - 879-RF2948B - ERSAELECTRONICS PTE. LTD.
Specs
Device Type Transceiver
Operating Temperature -40 to 85 C (-40 to 185 F)
Package Type Bulk
View Details
Specs
Device Type Transceiver
Supply Voltage Other; 4.5V ~ 5.5V
Data Rate 360000 kbps
View Details
Interface - CODECs - TP3064BDW - Lingto Electronic Limited
Rochester Electronics
Specs
Technology Serial
Device Type Sensor Interface; Codec
Operating Temperature 0 to 70 C (32 to 158 F)
View Details
Human Machine Interface (HMI) - 762-3001 - Quarktwin Technology Ltd.
Specs
Device Type Storage Interface
Features RoHS
Supply Voltage Other; 24VDC
View Details