HCA125ACREF

HCA125ACREF Data Sheet February 1999 File Number 4588.2 125/220 Watt Full Bandwidth Class D Amplifier The HCA125ACREF reference design delivers 125W RMS power into a 8Ω load and 220 watts into a 4Ω load. Since the efficiency is greater than 90%, no expensive, bulky heatsinks are required. The design is part of Intersil’s Cool Audio 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) 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) and One Evaluation Unit. For more information, see us on the web, home page http://www.intersil.com. For technical assistance, call Central Applications at 1-800-442-7747, or email us at [email protected]. Features 125 Watts RMS Power into 8Ω 220 Watts RMS Power into 4Ω THD <0.07% at 1kHz and 110W into 8Ω SNR 110dB Relative to Full Power Output Noise, 10Hz to 22kHz . . . . . . . . . . . . . . . . . 110µV Constant Group Delay DC to 80kHz Small Signal Bandwidth Power Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . 28kHz Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V/µs Efficiency >90% at 100W into 8Ω Meets FCC and EN55013 Requirements...