WM9712CLGEFL/V

Description：IC CODEC AC97 AUDIO TOUCH 48QFN
Series：-

SKU:9d56c6e5e5d2 Category: CODECS Brand: Cirrus Logic Inc.

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Product introduction

Product Detailed Parameters

Description：IC CODEC AC97 AUDIO TOUCH 48QFN
Series：-
Mfr：Cirrus Logic Inc.
Package：Tray
Type：Audio, AC '97
Data Interface：AC'97
Resolution (Bits)：12 b
Sigma Delta：Yes
S/N Ratio, ADCs / DACs (db) Typ：92 / 94
Dynamic Range, ADCs / DACs (db) Typ：-
Voltage - Supply, Analog：1.8V ~ 3.6V
Voltage - Supply, Digital：1.8V ~ 3.6V
Operating Temperature：-25°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：48-VFQFN Exposed Pad
Supplier Device Package：48-QFN (7x7)
Grade：-
Qualification：-

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WM9712CLGEFL/V

Overview

The WM9712CLGEFL/V is a highly integrated AC'97 audio and touchpanel CODEC designed for mobile computing. It features an 18-bit stereo DAC with 94 dB SNR and an 18-bit stereo ADC with 92 dB SNR, operating at sample rates up to 48 kHz. The device includes on-chip headphone and speaker drivers, supporting 4-wire or 5-wire resistive touchpads with 12-bit resolution. It operates on supply voltages from 1.8 V to 3.6 V and is housed in a 48-lead QFN package.

Feature Summary

Integrated AC'97 Rev 2.2 compatible stereo CODEC with variable rate audio support
On-chip 45 mW headphone driver and 400 mW mono speaker driver
Resistive touchpanel interface supporting 4-wire and 5-wire panels with pen-down detection
Auxiliary functions including battery monitoring comparators and GPIO pins

Applications

Personal Digital Assistants (PDA)
Smartphones
Handheld and Tablet Computers

Procurement Notes

Verify the specific ordering suffix 'V' indicates tray packaging when sourcing this component. Confirm that the manufacturer has designated this part as End-of-Life (EOL) and assess current availability through authorized distributors. Ensure compliance with RoHS standards and check for moisture sensitivity level requirements during storage and assembly.

Selection Notes

Select the WM9712CLGEFL/V for systems requiring combined audio processing and touchpanel digitization via a single AC'97 interface. Consider the 1.8 V to 3.6 V supply range compatibility with portable system power rails. Evaluate the need for integrated headphone and speaker drivers to reduce external component count compared to discrete solutions.

Part Context

This component belongs to the Wolfson Microelectronics (now Cirrus Logic) WM9712L series of mixed-signal devices. It was originally developed to address the integration needs of early mobile computing platforms, combining high-fidelity audio conversion with input sensing capabilities in a compact leadless package suitable for space-constrained handheld designs.