DESCRIPTION

The WM8739 is a stereo audio ADC. The WM8739 is designed specifically for portable MP3 audio and speech players and recorders. The WM8739 is also ideal for MD, CD-RW machines and DAT recorders.

FEATURES

• 90dB SNR (‘A’ weighted @ 48kHz) ADC

• Low Power

- 12mW all-on, 1.4mW standby (‘L’ version)

- 41mW all-on, 5.3mW standby (standard version)

• Low Supply Voltages

- 1.8 – 3.6V Analogue Supply (‘L’ version)

- 2.7 – 3.6V Analogue Supply (standard version)

- 1.42 – 3.6V Digital Supply (both versions)

• Input Volume and Mute Controls

• ADC Sampling Frequency: 8KHz – 96KHz

• Selectable ADC High Pass Filter

• 2 or 3-Wire MPU Serial Control Interface

• Programmable Audio Data Interface Modes

- I2S, Left, Right Justified or DSP

- 16/20/24/32 bit Word Lengths

- Master or Slave Clocking Mode

• 20-Pin SSOP or 5x5mm QFN Package Options

APPLICATIONS

• CD, Minidisc and DAT Recorders

• General Purpose Audio Digitisation