BPSK/QPSK/OQPSK Modulator

KEY FEATURES

Note: The newer COM-1402 now provides higher performance (22 MSymbols/s, 90MSamples/s) and extended functionality (more modulation schemes, ComScope, etc.)

BPSK/QPSK/OQPSK modulator

Programmable data rates up to 20 Mbps (QPSK) and 10 Mbps (BPSK) by steps of at most 3bps

Includes raised cosine square root filter with 20%, 25%, or 40% rolloff options

Differential and non-differential encoding

Synchronization sequence (unique word) insertion to facilitate demodulator acquisition

Internal generation of pseudo-random bit stream and unmodulated carrier for test purposes

Built-in channel impairments generation:

• frequency offset (Doppler)

On-board or external clock selection

Single 5V supply

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

ComScope–enabled: key internal signals can be captured in real-time and displayed on a host computer

ComBlock COMPATIBILITY LIST

Input	Output
COM-1010 Convolutional encoder	COM-2001 Digital to Analog conversion, baseband
COM-7003 Turbo Code Error Correction	COM-4004 70 MHz IF modulator
COM-8001 Pattern generator 256MB	COM-1001 BPSK/QPSK/OQPSK demodulator, digital back-to-back
COM-8004 Signal Diversity Splitter	COM-1023 BER generator, white gaussian noise generator
COM-5003 TCP-IP / USB Gateway	COM-1024 Multipath simulator