WM8739L - Wolfson Microelectronics plc

WM8739L STEREO AUDIO ADC

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. Stereo line-level audio inputs are provided, along with a mute and volume function, and master or slave mode clocking schemes. The device also has a programmable high.

Features

including volume controls, mutes, de-emphasis and extensive power management facilities. The device is available in a small 20pin SSOP package. BLOCK DIAGRAM 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 Co.