WM9715CLGEFL/RV

Overview

The WM9715CLGEFL/RV is a stereo AC’97 audio and touchpanel CODEC manufactured by Cirrus Logic (formerly Wolfson Microelectronics). It integrates high-performance audio codecs, a resistive touchpanel interface, auxiliary ADCs, and battery monitoring comparators. The device operates on supply voltages from 1.8V to 3.6V and supports variable rate audio with sample rates compatible with WinCE. Key electrical parameters include a DAC SNR of 90dB, an ADC SNR of 88dB, and a touchpanel resolution of 12 bits. It features an on-chip 45mW headphone driver and a 400mW mono speaker driver within a 48-lead QFN package.

Feature Summary

• Integrated stereo audio codec with tone control, bass boost, and 3D enhancement capabilities.
• Resistive touchpanel interface supporting 4-wire and 5-wire panels with pen-down detection in sleep mode.
• On-chip headphone and speaker drivers for direct connection to output transducers.
• Auxiliary analog inputs for temperature or light sensing and dual comparators for battery voltage monitoring.

Applications

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

Procurement Notes

Verify the ordering suffix RV indicates tape and reel packaging with a reel quantity of 2,200 units. Confirm the component meets MSL3 moisture sensitivity level requirements and Pb-free specifications. Ensure the operating temperature range of -25°C to +85°C aligns with system design constraints before procurement.

Selection Notes

Select this component for mobile systems requiring integrated audio and touch digitization via a single AC’97 interface. Consider the 48-lead QFN package dimensions for PCB layout. Evaluate power consumption profiles across different operating modes, such as standby and active phone call states, to ensure compliance with portable device battery life targets.

Part Context

This part belongs to the WM9715L family of highly integrated input/output devices designed for mobile computing. The specific suffix CLGEFL/RV denotes the commercial temperature range (-25 to +85°C), leadless QFN package, and tape and reel delivery format. It serves as a mixed-signal solution combining audio processing with peripheral control functions.

Replacement Considerations

Compatible variants within the same family include WM9715CLGEFL/V, which shares identical electrical characteristics but utilizes tube packaging instead of tape and reel. Verify pinout compatibility and software register map alignment when substituting between packaging types.