This trainer is designed to teach the basic concepts of Pulse Code Modulation. This is a self contained unit with a PCM modulator & demodulator.
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Signal I/P : Audio signal or local DC from -8V to +8V analog signal
Pulse Code O/P : 3 Bits or 4 Bits; selectable
Bit Rate : Variable from 4 KHz to 40 KHz
Demodulator : Built - in
Low Pass Filter : Can be introduced by a switch in the demodulated O/P signal
Built-in Difference Amplifier : Given; demod.O/P can be compared to modulator I/P
Quantization error measurement ckts : Effect of changing bit rate & changing coding from 3 bit to 4 bit can be seen on these
Synchronizing pulse O/P : 2V p-p, 0.1mS
