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Document Brief

CRD3511-Q1...

2 x 11 W CS3511 Digital Amplifier Reference Design...

Output Filters Optimized for 8 Loads Delivers 9 W/Ch into 8 at 10 % THD+N Delivers 11 W/Ch into 6 at 10 % THD+N Single-Ended Stereo Analog Inputs...

Description...

The CRD3511-Q1 demonstrates the CS3511 high-efficiency Class-D amplifier. This reference design implements a two-channel amplifier that delivers 9 W per full-bridge channel into 8 loads using a single +12 V supply. Standard RCA phono jacks are provided to easily interface single-ended analog input signals with the evaluation board. A source impedance matching circuit on the board allows the full performance of the CS3511 to be tested with any available audio source. The audio power outputs are routed through an inductor/capacitor 2nd order low-pass filter (LPF) to remove high-frequency components from the output signal, effectively converting it from digital to analog. On-board control switches easily change the configuration pins of the CS3511. ORDERING INFORMATION CRD3511-Q1 CS3511 Reference Design...

Source Impedance Matching Circuit...

Demonstrates Recommended 4-Layer Layout...

and Grounding Arrangements...

Operated by Single +8.5-13.2 V Power Supply Configured by On-Board Hardware Control...

Control Mute, Sleep, and Gain Settings Indicates Under-Voltage, Over-Current, or Over-Temperature Faults...

Power and Fault Indicator LEDs...

Versatile Binding Post Connectors for Power...

Supply and Speaker Outputs...

VP Power Analog Input 1 Power LED Output Filter 8 Speaker Binding Posts 8...

Impedance Matching Circuit...

Output Filter...

Analog Input 2...

DIP Switch Controls...

http //www.cirrus.com...

Copyright Cirrus Logic, Inc. 2008 (All Rights Reserved)...

DEC '08 DS845RD2...

CRD3511-Q1...

TABLE OF CONTENTS...

1. SYSTEM OVERVIEW ............................................................................................................................. 3 1.1 Power ............................................................................................................................................... 3 1.2 CS3511 Class-D Amplifier ............................................................................................................... 3 1.3 Analog Inputs ................................................................................................................................... 3 1.3.1 Optional Input Impedance Matching Circuit ............................................................................ 3 1.3.2 Dif...

Document Keywords

CRD3511 - Q1 Reference Design Data Sheet en pubs rd datasheet crd3511 q1 rd2

About Cirrus Logic, Inc.

Supplies analog and mixed - signal integrated circuits for consumer, automotive and professional audio and energy applications.

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Fax: 512-851-4000

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