WM8962ECSN/R

Overview

The WM8962ECSN/R is a low-power stereo CODEC designed for portable digital audio applications. It integrates Class D speaker drivers and ground-referenced headphone drivers with an integrated charge pump, eliminating the need for DC-blocking capacitors. The device features 24-bit sigma-delta ADCs and DACs, supporting standard sample rates from 8kHz to 96kHz. Key electrical parameters include a DAC SNR of 98dB (A-weighted) and an ADC SNR of 94dB (A-weighted) at 1.8V. It operates with analogue supply voltages down to 1.7V and digital supplies down to 1.62V. The component is housed in a 49-ball W-CSP package measuring 3.6x3.9mm.

Feature Summary

• Integrated Class D speaker drivers providing up to 1W per channel into 8-ohm loads or 2W mono into 4-ohm loads.
• Wolfson 'Class-W' ultra-low power headphone driver utilizing a dual-mode charge pump architecture for ground-referenced output.
• Programmable audio enhancement DSP featuring Virtual Surround Sound, HD Bass, and ReTune algorithms.
• Flexible input configuration supporting four stereo inputs or eight mono inputs with both analogue and digital microphone interfaces.

Applications

• Portable gaming devices
• Voice recorders
• Mobile multimedia systems
• Stereo digital still camera camcorders

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation before procurement. The 'N' suffix indicates a tape and reel quantity of 3,500 units, whereas the non-'N' variant typically corresponds to 5,000 units. Confirm that the required moisture sensitivity level and peak soldering temperature align with your assembly process capabilities. Ensure the selected variant matches the exact packaging requirements for your production line.

Selection Notes

Select this component when a compact solution combining high-performance audio conversion with direct drive capabilities is required. The integrated Class D amplifiers remove the need for external speaker amplifiers, while the charge pump eliminates bulky DC-blocking capacitors for headphones. Consider the programmable DSP features if signal enhancement functions such as bass boosting or surround sound widening are necessary within the design constraints.

Part Context

This component belongs to the Cirrus Logic WM8962 series of ultra-low power stereo CODECs. It is specifically engineered for handheld and portable electronic systems where space and power efficiency are critical. The device consolidates multiple audio processing stages into a single small footprint, reducing the overall bill of materials and simplifying the schematic design for portable audio equipment manufacturers.

Replacement Considerations

The WM8962ECSN/R is functionally similar to the WM8963ECSN/R. Both are 49-ball W-CSP stereo CODECs from Cirrus Logic. Verify pin-to-pin compatibility and register map alignment before substitution, as differences in specific amplifier configurations or DSP presets may exist between the two models.