CRD4412 Datasheet | Cirrus Logic

Features  Pre-Configured for Stereo Full-Bridge Description The CRD4412 demonstrates the CS4412 digital amplifier power stage. This reference design is preconfigured as a two-channel full-bridge power stage which delivers 15 W per channel into 8 Ω loads using a single +18 V supply. The design can be easily configured to operate as a single channel parallel full-bridge power stage capable of delivering 30 W into a 4 Ω load from an +18 V supply. The CRD4412 can be powered from +9 V to +18 V The CRD4412 is designed to operate in conjunction with the CRD4525. When connected, the bination implements a 2.1 configuration with the CRD4412 operating in mono parallel full-bridge mode. The CRD4412 can also be operated without an attached CRD4525. In this configuration, all input/output connections are achieved through the CRD4412 interface header. The PWM audio power outputs are routed through an inductor/capacitor 2nd order low-pass filter (LPF) to remove high frequency ponents from the output signal, effectively converting it from digital to analog. ORDERING INFORMATION CRD4412 CS4412 Reference Design Operation - Delivers 15 W/Ch into 8 Ω at 10 % THD+N  Easily Configurable for Mono Parallel Full- Bridge Operation - Delivers 30 W into 4 Ω at 10 % THD+N  Directly Connects to CRD4525 Digital Amplifier Reference Design - Implements a 2.1 Configuration  Flexible I/O Provided - - PWM Logic Level Signal Inputs CS4412 Error and Warning Signals  Operates from +9 V to +18 V and +3.3 V  Demonstrates Remended Layout and Grounding Arrangements  Implements Remended PWM Output Filtering CRD4412 Interface Header Right PWM Left PWM Mono Parallel Full-Bridge Stereo Full-Bridge Over Current Error Under Voltage/Temp Error Thermal Warning Power Reset CS4412 Output Filter http://.cirrus. Copyright © Cirrus Logic, Inc. 2006 (All Rights Reserved) DECEMBER '06 DS749RD1 Speaker Connector Output Filter TABLE OF CONTENTS 1. SYSTEM OVERVIEW...