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The SN76489[1] Digital Complex Sound Generator (DCSG) is a TTL -compatible programmable sound generator chip from Texas Instruments. [2] Its main application was the generation of music and sound effects in game consoles, arcade video games, and home computers (TI-99/4A, BBC Micro, ColecoVision, IBM PCjr, Tomy Tutor, Master System, Game Gear ...
There were two different sizes of the SN76477 available. The SN76477N was in a standard 0.6 in (15.24 mm) width dual in-line package (DIP). The SN76477NF was in a less common 0.4 inch (10.16 mm) width DIP. SN76477 top view. A redraw of a demonstration circuit used to try out most of the capabilities of the 76477 sound chip.
A signal generator is one of a class of electronic devices that generates electrical signals with set properties of amplitude, frequency, and wave shape. These generated signals are used as a stimulus for electronic measurements, typically used in designing, testing, troubleshooting, and repairing electronic or electroacoustic devices, though it often has artistic uses as well.
Beat frequency oscillator. In a radio receiver, a beat frequency oscillator or BFO is a dedicated oscillator used to create an audio frequency signal from Morse code radiotelegraphy (CW) transmissions to make them audible. The signal from the BFO is mixed with the received signal to create a heterodyne or beat frequency which is heard as a tone ...
Digital signal generator Exact frequency is 2^28/10 Hz. Used to drive a DDS synthesizer with 28-bit accumulator; gives output from 0 to 2.68435 MHz in 0.1 Hz steps. Instek SFG-1000 series is one example. 26.975 RC 27 MHz band, band 0/1 (grey/brown), "split" frequency; radio-controlled models of cars, boats, aircraft [29] 26.995 RC
Programmable sound generator. A programmable sound generator (PSG) is a sound chip that generates (or synthesizes) audio wave signals built from one or more basic waveforms, and often some kind of noise. PSGs use a relatively simple method of creating sound compared to other methods such as frequency modulation synthesis or pulse-code ...
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