WM8944BECS/R

$6.58

Description：IC CODEC 25WCSP
Series：-

SKU:563f1be9072d Category: CODECS Brand: Cirrus Logic Inc.

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Product introduction

Product Detailed Parameters

Description：IC CODEC 25WCSP
Series：-
Mfr：Cirrus Logic Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：General Purpose
Data Interface：I2C, SPI
Resolution (Bits)：24 b
Sigma Delta：Yes
S/N Ratio, ADCs / DACs (db) Typ：94 / 96
Dynamic Range, ADCs / DACs (db) Typ：-
Voltage - Supply, Analog：2.4V ~ 3.6V
Voltage - Supply, Digital：1.62V ~ 3.6V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：25-WFBGA
Supplier Device Package：25-W-CSP (2.41x2.41)
Grade：-
Qualification：-

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WM8944BECS/R

Overview

The WM8944BECS/R is a mono low-power Hi-Fi audio CODEC designed for portable devices. It features two analogue inputs and a stereo digital microphone interface. The device supports mono line output and mono BTL headphone/speaker drive. Key electrical parameters include a 25-ball W-CSP package, operating temperature range of -40°C to +85°C, and supply voltages: DCVDD (1.62V–1.98V), DBVDD (1.62V–3.6V), LDOVDD (2.4V–3.6V), and SPKVDD (1.71V–3.6V). Audio performance specifications are 94dB SNR for ADC recording and 96dB SNR for DAC playback.

Feature Summary

Integrated DSP functions including 5-notch filters, 5-band EQ, ReTune parametric filter, dynamic range control, and noise gate.
Supports flexible output mixing with single-ended and differential configurations derived from digital or analogue bypass paths.
Includes a video buffer function, digital beep generator, and integrated LDO for low-noise supply regulation.
Features a Frequency Locked Loop (FLL) for flexible clocking support and programmable GPIO functions.

Applications

Digital Still Cameras (DSC)
Multimedia phones

Procurement Notes

Verify the specific ordering code WM8944BECS/R against manufacturer documentation to confirm package type and moisture sensitivity level. Ensure compatibility with I2C or SPI control interfaces during system integration. Confirm that power supply rails meet the recommended operating conditions for all voltage domains before assembly.

Selection Notes

Select this component for applications requiring mono audio processing with high integration in a small footprint. Consider the available DSP capabilities for acoustic equalization and phase control. Verify that the required sample rates fall within the supported I2S interface range of 8kHz to 48kHz. Evaluate thermal performance requirements based on the junction-to-ambient resistance characteristics.

Part Context

The WM8944B belongs to Cirrus Logic's portfolio of low-power audio CODECs. It is specifically optimized for portable multimedia devices where space and power consumption are critical constraints. The device integrates both analogue and digital signal processing blocks to reduce external component count.