The IPrium-SOQPSK-LDPC-Modulator IP Core implements constant amplitude CPM SOQPSK modulation with LDPC Coding. The IP Core is a complete digital SOQPSK-TG, SOQPSK-MIL, SOQPSK-A and SOQPSK-B modulator with an integrated AR4JA LDPC Coding, optimized for communications systems with non-linear amplifiers.