Codec with Speaker Driver

The WM8750 is a low power, high quality stereo codec with integrated stereo or mono microphone interfaces and a stereo headphone. Advanced on-chip digital signal processing performs graphic equaliser, 3-D sound enhancement and automatic level control for the microphone or line input. The WM8750 can operate as a master or a slave, with various master clock frequencies including 12 or 24 MHz for USB devices, or standard 256 fs rates like 12.288 MHz and 24.576 MHz. Different audio sample rates such as 96 kHz, 48 kHz, 44.1 kHz are generated directly from the master clock without the need for an external PLL.

Features

  • DAC SNR 98 dB (‘A’ weighted), THD -95B at 48kHz, 3.3V
  • ADC SNR 95 dB (‘A’ weighted), THD -90 dB at 48kHz, 3.3V
  • Complete stereo / mono microphone interface
  • Programmable ALC / noise gate
  • On-chip 400mW BTL speaker driver (mono)
  • On-chip headphone driver
  • >40mW output power on 16W / 3.3V
  • THD –80 dB at 20mW, SNR 90 dB with 16W load
  • No DC blocking capacitors required (capless mode)
  • Separately mixed mono output
  • Digital graphic equalizer
  • Low power
    • 7mW stereo playback (1.8V / 1.5V supplies)
    • 14mW record & playback (1.8V / 1.5V supplies)
  • Low supply voltages
    • Analog 1.8V to 3.6V
    • Digital core: 1.42V to 3.6V
    • Digital I/O: 1.8V to 3.6V
  • 256fs / 384fs or USB master clock rates: 12MHz, 24MHz
  • Audio sample rates: 8, 11.025, 16, 22.05, 24, 32, 44.1, 48, 88.2, 96 kHz generated internally from master clock
  • 5x5x0.9 mm QFN package

Parametric Specifications

DACs 2
ADCs 2
DAC THD+N (dB) -86
ADC THD+N (dB) -84
Sample Rate (kHz) 96
Analog Power Supply (V) 1.8-3.6
Supply Current (µA) 1.42-3.6
Package 32 QFN

Technical Documents

WM8750BL Product Datasheet

Aug 1, 2012, v4.1 : 765 Kb

WM8750L Product Datasheet

Aug 1, 2012, v4.4 : 672 Kb

WM8750JL Product Datasheet

Apr 1, 2012, v4.1 : 554 Kb

6097 EV1 REV2 Schematic and Layout

Jan 1, 2008, v1.1 : 2400 Kb

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Comprehensive Solutions