WM9714L is a highly integrated input/output device designed for mobile computing and communications.
The WM9714L is a highly integrated AC'97 audio CODEC designed for mobile computing and communications. It supports dual stereo CODEC operation, an auxiliary DAC for tones, and a PCM voice interface, all accessed through a single AC‑Link interface.
The document provides a full description of the device, pin configuration, ordering information, absolute maximum ratings, recommended operating conditions, electrical characteristics, audio input/output performance, and mechanical package dimensions.
| Supply voltage range (digital/analogue) | 1.8 V to 3.6 V |
|---|---|
| Speaker supply voltage range | up to 4.2 V |
| DAC Signal‑to‑Noise Ratio | 94 dB |
| ADC Signal‑to‑Noise Ratio | 87 dB |
| Speaker output power (1 % THD) | 400 mW RMS |
| Package type | 48‑lead QFN |
| Package dimensions | 7 × 7 × 0.9 mm |
| PLL input clock range | 2.048 MHz to 78.6 MHz |
The device operates from 1.8 V to 3.6 V for its digital and analogue supplies, and the speaker supply can be as high as 4.2 V.
It is offered in a 48‑lead QFN package measuring 7 × 7 mm with a height of 0.9 mm.
The DAC provides a signal‑to‑noise ratio of 94 dB and total harmonic distortion of –85 dB.
The PLL can accept input clocks ranging from 2.048 MHz up to 78.6 MHz.