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QAM Modulator IP

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  • M’ary Quadrature Amplitude Modulator IP in VHDL, FPGA and SDR
    • Fully verified and synthesized with source code and netlist, integration guide, license and manual
    Block Diagram -- M’ary Quadrature Amplitude Modulator IP in VHDL, FPGA and SDR
  • Quadrature Amplitude Modulation: Modulator and Demodulator
    • 1. Quadrature amplitude modulation Aside from increased channel capacity, QAM has various other advantages, which are stated below.
    • 2. One of the most significant advantages of QAM is its ability to sustain a high data rate. As a result, the carrier signal can carry a certain amount of bits. Because of these benefits, it is preferred in wireless communication networks.
    • 3. The noise immunity of QAM is quite strong. Noise interference is a bit low as a result of this.
    • 4. It has a low mistake probability value.
    Block Diagram -- Quadrature Amplitude Modulation: Modulator and Demodulator
  • PDSCH Encoder for 3GPP 5G NR
    • The PDSCH Encoder and PUSCH Decoder products simplify the creation of high performance 5G NR implementations.
    • PDSCH Encoder features the new QAM mapper and Scrambler functionality. These are integrated with LDPC encoder chain and transport block chain components.
    • PDSCH encoder has a configurable IQ parallelism for improved performance per clock.
    • The functions included are CRC, Segmentation, LDPC encode, Rate matching, Integrated HARQ, Concatenation, Scrambling and Modulation.
    Block Diagram -- PDSCH Encoder for 3GPP 5G NR
  • ISDB-T Modulator
    • ARIB STD-B31 compliant operation, supporting one, two or three-layers
    • Drop-in module for Spartan-6™, Virtex-6™, Artix-7™, Kintex-7™, Virtex-7™ FPGAs and Zynq™
    Block Diagram -- ISDB-T Modulator
  • DVB-C Modulator J.83 Annex A/C Core
    • ITU-T J.83 Annex A/C, DVB-C (ETS 300 429) Compliant baseband transmitter for Cable Modem Termination Systems (CMTS)
    • Drop-in module for Spartan-6™, Virtex-6™, Artix-7™, Kintex-7™, Virtex-7™ FPGAs and Zynq™
    • Single clock (up to 160 MHz)
    • Robust SPI input (discarding incorrect input packets)
    Block Diagram -- DVB-C Modulator J.83 Annex A/C Core
  • Cable Modulator J.83 Annex B
    • ITU-T J.83 Annex B Compliant baseband transmitter for Cable Modem Termination Systems (CMTS)
    • Drop-in module for Spartan-6™, Virtex-6™, Artix-7™, intex-7™, Virtex-7™ FPGAs and Zynq™
    • Single clock (up to 160 MHz)
    • Robust SPI input (discarding incorrect input packets)
    Block Diagram -- Cable Modulator J.83 Annex B
  • Single-channel DVB-C/J83 modulator
    • Compliant with DVB-C (EN 300 429); ITU J.83 Annexes A, B and C; DOCSIS 1.x, 2.0 and 3.0.
    • Scalable architecture supports multiple instances per FPGA.
    • Modulation accuracy > 40dB (MER).
    • On-chip or off-chip interleaving RAM.
  • Multi-channel DVB-C/J83 modulator
    • Modulation accuracy > 45dB (MER).
    • Variable symbol rate interpolation.
    • Software selectable channel filter.
    • On-chip or off-chip interleaver
  • Multi-mode QAM Demodulator
    • IF sub-sampling or I/Q baseband interface.
    • Variable ADC width support.
    • Single external clock source required.
    • Single external analogue loop for AGC.
  • Universal QAM/PSK Modulator
    • Continuous or burst-mode operation.
    • Symbol mapping for QAM orders from 2 (BPSK) to 256 (256-QAM) including support for cross, circular (MPSK) and offset (staggered) QAM (e.g. OQPSK).
    • Arbitrary symbol rate at up to one half of the master clock frequency.
    • Register programmable or symbol-by-symbol selection of mapping scheme to support variable-rate and adaptive physical-layer protocols.
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