Telecoms, Datacoms, Wireless, IoT


Wideband programmable modulator for digital modulation

1 March 2000 Telecoms, Datacoms, Wireless, IoT

Designers of wideband digital modulation systems looking for higher levels of integration can now incorporate a single signal processing solution into their design for the shaping, upconversion and modulation of quadrature data. The HSP50415 wideband programmable modulator (WPM) is the newest member of Intersil's CommLink family of signal processing and high-speed converter solutions. It supports wideband applications such as mini and pico-basestations, WLL, LMDS, MMDS, point-to-point microwave systems, smart antennas, VSAT and last mile wireless Internet applications. The device combines shaping and interpolation filters, a complex modulator, timing and carrier numerically controlled oscillators (NCOs) plus a 12 bit dual-channel digital-to-analog converter (DAC) in a single 100-lead MQFP package.

According to the manufacturer, the programmability of the HSP50415 offers designers the flexibility to support a wide range of modulation schemes with a single design. The new device features digital operation up to 25 Mega symbols/s based on QPSK modulation. The programmable architecture is capable of supporting various modulation schemes up to 16 bit vector modulation.

The HSP50415 is capable of digital output spectral purity that exceeds 50 dB at the maximum output sample rate. In addition, it operates from a 3,3 V and the inputs and outputs are CMOS compatible.



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