PSG16 Audio Interface Circuit

PSG32 is an audio interface circuit (sound interface device) for use within a programmable system to interface the system to an audio output. It supports four ADSR audio channels with a wavetable option.

Features

PSG32:
- four ADSR / wave table channels
- programmable frequency and pulse width control
- 0.0233 Hz frequency resolution (with 100MHz clock)
- attack, decay, sustain and release
- test, ringmod, sync and gate controls
- five voice types: triangle, square, pulse, noise and wave
- exponential decay and release
Changes from PSG16:
- the register set is 32 bit wide
- decoding of the register address range is externally supplied
- the core no longer uses TDM (time domain multiplexing) during signal generation
- the core no longer has a clock prescaler. Instead the frequency accumulators are wider.
- the core is capable of higher resolution frequencies
- 32 bit frequency synthesis accumulators are used rather than 24 bit.


PSG16:
- four ADSR / wave table channels
- programmable frequency and pulse width control
- 0.06 Hz frequency resolution
- attack, decay, sustain and release
- test, ringmod, sync and gate controls
- five voice types: triangle, square, pulse, noise and wave
- exponential decay and release
 

PSG Output