Audio Codecs

Audio codec products from Cirrus Logic include stereo codecs and multi-channel codecs for surround sound applications. These products combine audio ADCs and DACs into single ICs designed to provide maximum flexibility, features and performance.

Technologies

Documents

Application Notes

AN397-Surface Mount Assembly Considerations for WLCSP Devices

Dec 11, 2020, AN397R1 : 428 Kb

WAN-0118 Guidelines

Sep 1, 2014, WAN_0118 rev 2.5 : 740 kb

AN333 CS470xx Firmware User's Manual: General Overview

Apr 21, 2014, AN333RC16 : 849 Kb

WAN-0129 Decoupling and Layout Methodology for Wolfson DACs, ADCs and CODECs

Sep 1, 2012, WAN-0129 rev 1.1 : 99 Kb

WAN_0276 WM8962 to WM8962B Migration Document

Jul 1, 2012, WAN0276 rev 1.1 : 196 Kb

WAN_0258 HD Bass Operation in Wolfson Audio CODECs

May 1, 2011, WAN0258 rev 1.1 : 321 Kb

AN348 Getting Started with the Audio DSP Evaluation Kits from Cirrus Logic

Mar 9, 2011, AN348REV2 : 1058 Kb

WAN_0247 DRC Attack and Decay Times for Real Audio Signals

Sep 1, 2010, WAN0247 rev 1.0 : 145 Kb

WAN_0240 I²S USB Audio Streaming

Sep 1, 2010, WAN0240 rev 1.0 : 1187 Kb

WAN_0225 Setting the 3D-Stereo Enhancement Block in Wolfson CODECs

Aug 1, 2010, WAN0225 rev 1.1 : 241 Kb

WAN_0218 Implementing ReTune™ with Wolfson Audio CODECs

Aug 1, 2010, WAN0218 rev 1.1 : 1882 Kb

WAN_0215 DRC Operation in Wolfson Audio CODECs

Mar 1, 2010, WAN0215 rev 1.0 : 218 Kb

WAN_0200 Speaker Selection for Class D Output Drivers

Feb 1, 2010, WAN0200 rev 1.0 : 172 Kb

WAN_0212 Impedance Compensation (Zobel Network) for Ground Referenced Outputs

Jul 1, 2009, WAN0212 rev 1.0 : 121 Kb

WAN_0214 External Component Requirements for Ground Referenced Outputs

Jul 1, 2009, WAN0214 rev 1.0 : 193 Kb

WAN_0202 Guidelines on How to Use W-CSP Packages and Create Associated PCB Footprints

Jul 1, 2008, WAN0202 rev 1.0 : 675 Kb

WAN_0197 Improving the PSRR in Wolfson CODECs

Jun 1, 2008, WAN0197 rev 1.0 : 130 Kb

AN263 Audio Conversion Systems Noise Calculations and Requirements

Oct 18, 2004, AN263REV1 : 120 Kb

AN241 Analog Input Buffer Architectures

Nov 1, 2003, AN241REV1 : 716 Kb

AN048 Design Notes for a 2-Pole Filter with Differential Input

Mar 1, 2003, AN48REV2 : 105 Kb

AN022 Overview of Digital Audio Interface Data Structures

Feb 1, 1998, AN22REV2 : 117 Kb

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White Papers

Continuous-Time Converter Architectures for Integrated Audio Processors

Oct 31, 2008, DS870WP1 : 663 Kb

Software/Tools

Download FlexGUI Software

Device Pack for CS47L24

Mar 3, 2023, v1.1.8 : 12.8 Mb

Device Pack for CS47L35

Feb 24, 2023, v2.2.16 : 7.5 Mb

WM8946 Setup

Jun 1, 2022, Rev1.4 : 1.6 Mb

WM8998 Setup

Mar 30, 2022, Rev2.2 : 5 Mb

CS47L63 Setup

Jun 11, 2021, RevA 1.0.57 : 7.5 Mb

WISCE Setup

Jan 14, 2021, v3.12.0.5 : 43.2 Mb

WISCE Development Tools Suite

Jun 8, 2020

WM8944B Setup

Feb 19, 2019, Rev 1.5 : 1.5Mb

Device Pack for WM8958

Aug 16, 2018, v2.1 : 25.1Mb

HD Audio driver for CDB4207 (Windows 10, 64-bit only)

Mar 22, 2018, v6.6001.4.02 : 418 KB

Device Pack for CS42L92

Nov 20, 2017, v1.0.2 : 12.6 Mb

HD Audio driver for CDB4207 (Windows 7/Windows 8/Windows 8.1, 32-bit and 64-bit)

Nov 9, 2017, v6.6001.3.39 : 3.6 Mb

Device Pack for WM8281

Sep 26, 2017, v1.4.7 : 27.8 Mb

Device Pack for CS47L90

Sep 26, 2017, v1.3.22 : 7.9 Mb

Device Pack for WM8904

May 4, 2015, v1.4 : 1393 Kb

HD Audio driver for CDB4207 (Windows XP, 32-bit only)

Jan 14, 2011, v1.0.0.38 : 35 KB

CS4207 Linux Driver

Jan 28, 2010, kernel v2.6.30 and up

CS42L52 IBIS Model

Feb 22, 2007, (1.8V, 2.5V, 3.3V) : 80 Kb

CS4272 IBIS Model

Jan 26, 2006, (1.8V, 2.5V, 3.3V, 5.0V) : 80 Kb

WM8734 EV1S Evaluation Board Software

v3.0 : 1482 Kb

WM8734 EV2S Evaluation Board Software

v1.0 : 1705 Kb

Device Pack for WM8940EV1M

v1.2 : 1348 Kb

WM8962B Device Pack

v1.1 : 3930 Kb

Device Pack for WM8994EV1M

v3.0 : 14047 Kb

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Support

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