Dynamic headroom test generator

Details Dynamic headroom test generator Dynamic headroom test generator

1980-03-31

1982-06-22

Moore, David K.

Oscillators

Relaxation oscillators

328178, 331 78, H03K 402

Patent

active

043364993

ABSTRACT:
A signal generator for testing the dynamic headroom characteristic of audio amplifiers. The signal generator provides a signal comprising 20 cycles of a 1000 Hz sinewave followed by 480 cycles of a sinewave at the same frequency and having a level of -20 dB relative to the 20 cycle burst. The dynamic headroom test generator signal processing provides a test signal amplitude HI/LO ratio of 10 to 1, and a HI/LO timing ratio not subject to change from 20/500 cycles, whatever audio frequency is utilized.

REFERENCES:
patent: 2773186 (1956-12-01), Herrmann, Jr.
patent: 3202834 (1965-08-01), Pingry et al.
patent: 3679984 (1972-07-01), Buus

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