CDMA Trainer (CDMAL) provides a basic understanding of the concepts behind CDMA, and various issues that need to be considered in the design of a DSSS system. These include the Usage of pseudorandom (PN) codes and digital modulations BPSK. CDMA Trainer (CDMAL) has digital modulation & demodulation along with direct sequence spread spectrum (DSSS) generation and decoding, data signals, zero random bit signal generation.

Specifications

• It uses the VLSI Technology
• On Board Pseudo-Noise (PN) Code generator bits - 16 bits
• On Board Digital Data generator - 1 Nos.
  • Word Length - 8 Bits.
  • Bit Clock Frequency - 240 Khz
  • Data Format - NRZ
• Modulation Carrier Frequency of 1.44 MHz.
• Spreading code mixer and Unipolar to Bipolar Converter section
• Modulator type : Coherent Binary PSK Modulator
• Demodulator Type : Coherent Detector
• Low pass filter cutoff frequency : 240 KHz.
• Code dispreading : Using EX-NOR gate
• Power supply requirement : 230V AC, 50 Hz.