The WM9714L is a highly integrated AC'97 audio codec designed for mobile computing and communications. It supports dual stereo codec operation, voice codec via a PCM‑type SSP, and includes an auxiliary DAC for tones. The device can directly drive headphones, speakers and microphones, reducing component count.
The datasheet provides a full pin configuration, ordering information, absolute maximum ratings, recommended operating conditions, and detailed electrical characteristics such as supply voltage ranges, SNR, THD, and output power for headphone and speaker drivers. Package dimensions and moisture‑sensitivity levels are also listed.
| Supply voltage range (digital & analogue) | 1.8 V to 3.6 V |
|---|---|
| DAC Signal‑to‑Noise Ratio | 94 dB |
| ADC Signal‑to‑Noise Ratio | 87 dB |
| On‑chip headphone driver power | 45 mW |
| On‑chip speaker driver power | 400 mW |
| Package type | 7 mm × 7 mm 48‑lead QFN |
| Operating temperature range | -25 °C to +85 °C |
| Audio output SNR (headphone) | 90 dB (A‑weighted) |
The codec operates from 1.8 V up to 3.6 V for both digital and analogue supplies.
The DAC provides a signal‑to‑noise ratio of 94 dB.
It is offered in a 7 mm × 7 mm 48‑lead QFN package.
The device is rated for temperatures from –25 °C to +85 °C.