DS Spread-Spectrum Demodulator 10 Mchip/s

KEY FEATURES

A higher-performance newer-generation DSSS demodulator is now available: COM-1518

Direct sequence spread-spectrum demodulator

Variable chip rate up to 10 Mchips/s

Spreading codes:

• Gold sequences (up to 2²³-1 chips)
• Maximal length sequences, (max length 2²³-1 chips)
• Barker codes (length 11, 13)

BPSK, QPSK selectable

Demodulation performances: within 1.5 dB from theory at threshold SNR of 5 dB

Sequential code search

4-bit soft-quantized demodulated bits

Monitoring:

• Receiver lock
• Carrier frequency error

Connectorized 3”x 3” module for ease of prototyping. Standard 40 pin 2mm dual row connectors (left, right, bottom). Single 5V supply. Interfaces with 5V and 3.3V logic

ComBlock COMPATIBILITY LIST

Input	Output
COM-1519 DSSS digital modulator, digital back-to-back	COM-1005 Bit Error Rate Measurement
COM-300x RF receivers	COM-7002 Turbo Code Error Correction
COM-1008 Variable decimation	COM-1509 Convolutional Error correction codec, K=5,7,9
COM-1824 Channel emulator (Doppler, delay, fading, noise)