WM9714CLGEFL/RV

Overview

The WM9714CLGEFL/RV is a highly integrated AC'97 audio codec designed for mobile computing. It features dual CODEC operation with a stereo DAC SNR of 94 dB and ADC SNR of 87 dB. The device includes an auxiliary mono DAC, on-chip headphone and speaker drivers, and supports voice functions via a PCM interface. Operating voltages range from 1.8 V to 3.6 V. It utilizes a 24.576 MHz master clock or an internal PLL derived from inputs between 2.048 MHz and 78.6 MHz. The component is housed in a 48-lead QFN package.

Feature Summary

• Dual CODEC architecture supporting hi-fi stereo audio via AC-Link and voice functions via PCM SSP.
• Integrated power amplifiers including a 45mW headphone driver and 400mW mono/stereo speaker drivers.
• Capless output connections for headphones, speakers, and earpiece to reduce board area.
• On-chip PLL generating audio clocks from input frequencies ranging from 2.048MHz to 78.6MHz.

Applications

• Smartphones
• Personal Digital Assistants (PDA)
• Handheld and Tablet Computers

Procurement Notes

Verify the specific ordering suffix RV indicates tape and reel packaging with a quantity of 2,200 units. Confirm moisture sensitivity level MSL3 and peak soldering temperature of 260°C are compatible with assembly processes. Ensure the -25 to +85°C temperature range meets environmental requirements.

Selection Notes

Select this component for systems requiring AC'97 compatibility with integrated audio output stages. Verify that the digital supply voltage supports the required logic levels. Consider the auxiliary DAC for ringtone generation if separate sample rates are needed. Ensure the 48-lead QFN footprint fits the PCB layout constraints.

Part Context

The WM9714L belongs to Cirrus Logic's AC'97 audio codec family. It is functionally similar to the WM9712 but adds a dedicated PCM interface for voice applications. The CLGEFL/RV designation specifies the commercial temperature range, lead-free construction, and reel packaging format.

Replacement Considerations

WM9714CLGEFL/V is the tray-packaged equivalent of the same device. Other Cirrus Logic AC'97 codecs may require significant schematic and firmware modifications due to pinout or feature differences.