WM8918CGEFL/V

$2.94

Description：IC DAC/AUDIO 24BIT 96K 32QFN
Series：-

SKU:6b349a1e21fd Category: ADCs/DACs - Special Purpose Brand: Cirrus Logic Inc.

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Product introduction

Product Detailed Parameters

Description：IC DAC/AUDIO 24BIT 96K 32QFN
Series：-
Mfr：Cirrus Logic Inc.
Package：Tray
Type：DAC, Audio
Number of Channels：2
Resolution (Bits)：24 b
Sampling Rate (Per Second)：96k
Data Interface：DSP, I2S
Voltage Supply Source：Analog and Digital
Voltage - Supply：0.95V ~ 1.98V, 1.71V ~ 2V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：32-WFQFN Exposed Pad
Supplier Device Package：32-QFN (4x4)
Grade：-
Qualification：-

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WM8918CGEFL/V

Overview

The WM8918CGEFL/V is a high-performance ultra-low power stereo DAC optimized for portable audio applications. It features stereo ground-referenced headphone amplifiers utilizing Wolfson 'Class-W' techniques with a dual-mode charge pump architecture to optimize efficiency. The device includes ground-referenced line outputs that eliminate AC coupling capacitors and incorporate common mode feedback paths to reject ground noise. It supports single-ended or differential analogue inputs, a stereo digital microphone interface, and an integrated control write sequencer for pop minimization via SilentSwitch technology.

Feature Summary

Ultra-low power consumption: 3.8mW quiescent for DAC-to-headphone playback and 2.4mW for analogue bypass playback
High performance metrics: 96dB typical DAC SNR and -86dB typical THD
Integrated Class-W ground-referenced headphone and line drivers eliminating external AC coupling capacitors
Control write sequencer for minimized start-up/shutdown pops and pre-loaded default sequences

Applications

Wireless headsets
Portable multimedia players
Handheld gaming devices

Procurement Notes

Verify the ordering suffix '/V' corresponds to the tray package configuration as specified in the manufacturer's ordering information. Confirm the component meets MSL3 moisture sensitivity level requirements for storage conditions prior to surface mount assembly. Ensure the selected variant matches the required temperature range of -40°C to +85°C.

Selection Notes

Select this component when designing portable audio systems requiring ground-referenced outputs to reduce bill of materials by removing AC coupling capacitors. Verify compatibility with the required supply voltages: DCVDD (0.95V–1.98V), DBVDD (1.42V–3.6V), AVDD (1.71V–2.0V), and CPVDD (1.71V–2.0V). Consider the 32-lead QFN (4x4mm) package constraints for PCB layout.

Part Context

The WM8918CGEFL/V belongs to the WM8918 series manufactured by Cirrus Logic (formerly Wolfson Microelectronics). It is functionally similar to other ultra-low power DACs like the WM8912 but offers specific integration of Class-W output stages and digital signal processing features such as a 5-band parametric equalizer and dynamic range controller tailored for mobile applications.