1

File Number

4777

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 407-727-9207

Coolaudio™ is a trademark of Intersil Corporation.

PRELIMINARY

HCA600ACREF

600W/1000W Full Bandwidth Class D

Amplifier

The HCA600ACREF reference

design delivers 600W RMS

power into a 8

Ω load and

1000W into a 4

Ω load.

The design is part of the Intersil’s Coolaudio™ program that

supports customers to achieve a minimum time-to-market for

audio end products. As part of this program, this design is

offered after execution of a licensing agreement. At that time,

Intersil provides to the licensee a documentation package

containing: 1) a circuit description, 2) schematics, 3) test

and manufacturing information, 4) A bill of materials with all

vendors and vendor part numbers, 5) Intersil’s engineering

support contacts, 6) one evaluation unit.

For more information, visit our web page at

http://www.intersil.com. For technical assistance, call Central

Applications at 1-800-442-7747, or email us at

centapp@intersil.com.

Licensing Information

Contacts for licensing details, reference design evaluation,

and general questions are as follows:

Continental Far East, Email cfelic@ca.mbn.or.jp

Intersil Cool Audio, Email coolaud@intersil.com

Features

• 600W RMS Power into 8

Ω

• 1000W RMS Power into 4

Ω

• THD <0.02% at 1kHz and 450W into 8

Ω

• SNR >110dB Relative to Full Power

• Output Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . <200

µV

• Constant Group Delay

• DC to 80kHz Small Signal Bandwidth

• Power Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . .28kHz

• Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V/

µs

• Efficiency >90% at 500W into 8

Ω

• Meets FCC and EN55013 Requirements for EMC

• Based On the Intersil HCA8001, Audio Specific IC

• Differential or Single Ended Input

• Over-Current, Over-Voltage and Thermal Protection

• Soft Clipping

• Bridgeable up to 4000W

Applications

• Sound Reinforcement

• Professional and Commercial Sound Systems

• Powered Speakers

• Hi-Fi Stereo

Reference Design Block Diagram

SOURCE

HCA600ACREF

HCA600ACREF

PRE-AMPLIFIER

HCA600ACREF

HCA600ACREF

SOURCE

HEATSINK / EMI SHIELD

HCA600ACREF

HCA8001

HCA600ACREF

HCA8001

27.9MM (1.1”)

220MM (8.7”)

FETS AND DIODES

POWER

SUPPLY

NOTE: The HCA600ACREF can be used in many different commercial and professional applications

including movie theater surround sound systems as depicted in this reference design block diagram.

12

Data Sheet

October 1999