TELECOMMUNICATIONS

COMPLEMENTARY COMMUNICATION SYSTEM TRAINER


Module OF.TEL900A-35



         
Analog Signal Sampling and Reconstruction Circuit

Description:
- Sampling Rate: 10 kHz ~ 50 kHz
- Sampling Signal Format: TTL Waveform
- Audio Signal Frequency: 1 kHz ~ 2 kHz
- Audio Input Format: Sine Waveform
- Sampling Methods: Sample and Hold, Flat Top Sampling, Natural Sampling
- Low-pass Filter -3 dB Frequency: 1 kHz ~ 3 kHz
- Seven Built-in Faults Shooting

Module OF.TEL900A-36



         
Noise Power Spectral Density Measurement

- CLK Rate: 100 kHz ~ 1 MHz
- CLK Signal Format: TTL Waveform
- Built-in Audio Signal Generator
- Audio Signal Frequency: 500 Hz ~ 1.2 kHz
- Audio Input Format: Sine Waveform
- Low-pass Filter -3 dB Frequency: 100 kHz
- Amplifier Gain Ratio: 1 ~ 3
- Eight Built-in Faults Shooting

Module OF.TEL900A-37



         
DPCM Modulator/Demodulator Circuit

Description:
- Built-in Sampling Rate: 8 kHz
- Sampling Signal Format: TTL Waveform
- Audio Signal Frequency: 800 Hz ~ 1.2 kHz
- Audio Input Format: Sine Waveform
- Quantizer: 8 Bits
- Built-in Sampling Rate: 8 kHz
- Sampling Signal Format: TTL Waveform
- Audio Signal Frequency: 800 Hz ~ 1.2 kHz
- Audio Input Format: Sine Waveform
- Inverse Quantizer: 8 Bits
- Low-pass Filter -3 dB Frequency: 1 kHz