98/95 dB Stereo Codec with Class D Speaker Driver

The WM8960 is a low power stereo codec featuring Class D speaker drivers to provide 1 W per channel into 8 W loads. Guaranteed low leakage, excellent PSRR and pop/click suppression mechanisms enable direct battery connection for the speaker supply. This IC integrates a complete microphone interface and a stereo headphone driver. External component requirements are drastically reduced as no separate microphone, speaker or headphone amplifiers are required. Advanced on-chip digital signal processing performs automatic level control for the microphone or line input. Stereo 24-bit Delta Sigma converters are used with low power over-sampling digital interpolation and decimation filters and a flexible digital audio interface. The master clock can be input directly or generated internally by an onboard PLL, supporting most commonly used clocking schemes.

Technology

Mono/Stereo Codecs

Features

  • DAC SNR 98 dB (’A’ weighted), THD -84 dB at 48 kHz, 3.3V
  • ADC SNR 95 dB (’A’ weighted),THD -82 dB at 48 kHz, 3.3V
  • Pop and click suppression
  • Microphone interface
  • Programmable ALC / limiter and noise gate
  • 3D stereo enhancement
  • Stereo class D speaker driver
  • 1W per channel into 8Ω BTL speakers
  • Flexible switching clock
  • Filterless connection supported
  • On-chip headphone driver 40mW output power into 16Ω at 3.3V
  • Capless mode
  • Low power consumption
  • 10mW headphone playback (2.7V / 1.8V supplies)
  • 20mW record and playback (2.7V / 1.8V supplies)
  • Low supply voltages
  • Analog 2.7V to 3.6V (AVDD)
  • Speaker 2.7V to 5.5V (SPKVDD)
  • Digital core: 1.71V to 3.6V (DCVDD)
  • Digital I/O: 1.71V to 3.6V (DBVDD)
  • On-chip PLL provides flexible clocking scheme
  • Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48
  • 5x5x0.9mm 32-pin QFN package

Parametric Specifications

Channels In 2
Channels Out 2
DAC THD+N (dB) -84
ADC THD+N (dB) -82
Analog Power Supply (V) 2.5-3.6
Supply Current (µA) 1.71-3.6
Package 32 QFN

Technical Documents

WM8960 Product Datasheet

Aug 1, 2013, v4.2 : 1239 Kb

6160 EV1 REV2 Schematic and Layout

Aug 1, 2008, v1.0 : 2600 Kb

6158 EV1 REV1 Schematic and Layout

Feb 1, 2008, v1.1 : 1100 Kb

WM8960 Product Flyer

Jan 1, 2006, n/a : 131 Kb

Design Resources

WAN_0240 I²S USB Audio Streaming

Sep 1, 2010, WAN0240 rev 1.0 : 1187 Kb

WAN_0200 Speaker Selection for Class D Output Drivers

Feb 1, 2010, WAN0200 rev 1.0 : 172 Kb

WAN_0140 ALC for Portable Applications

Mar 1, 2007, WAN0140 rev 1.2 : 436 Kb

WAN_0178 Suggested ALC Settings for Portable Devices

Feb 1, 2007, WAN0178 rev 1.0 : 81 Kb

Class D Basics

Sep 1, 2006, Rev 1.0 : 67 Kb

Class D Amplifiers Empower Mobile Multimedia

Sep 1, 2006, Rev 1.0 : 144 Kb

Class D Audio Design Tips

Jan 1, 2006, n/a : 325 Kb

Software and Tools

WISCE Setup

v3.8.1.2 : 40.3 Mb

More

Comprehensive Solutions