The HSP50415 Wideband Programmable Modulator (WPM) is a quadrature amplitude modulator/upconverter designed for wideband digital modulation. The WPM combines shaping and interpolation filters, a complex modulator, timing and carrier NCOs and dual DACs into a single package. The HSP50415 supports vector modulation, accepting up to 16-bit In phase (I) and Quadrature (Q) samples to generate virtually any quadrature AM or PM modulation format. A constellation mapper and 24 Symbol span interpolation shaping filter is provided for the input baseband signals. Gain adjustment is provided after the shaping FIR filter. A timing error generator in the input section allows the on-chip timing NCO to track the input timing. The WPM includes a Numerically Controlled Oscillator (NCO) driven interpolation filter, which allows the input and output sample rate to have a non-integer or variable relationship. This re-sampling feature simplifies use of sample rates that do not have harmonic or integer frequency relationships to the input data rate and decouples the carrier from the DATACLK. A complex quadrature modulator modulates the baseband data on a programmable carrier center frequency. The WPM offers digital output spurious Free Dynamic Range (SFDR) that exceeds 70dB at the maximum output sample rate of 100MSPS, for input sample rates as high as 25MSPS. X/SIN(X) rolloff compensation filtering is provided. Real 14-bit digital output.
The HSP50415 Wideband Programmable Modulator (WPM) is a quadrature amplitude modulator/up‑converter designed for wideband digital modulation. It integrates shaping and interpolation filters, a complex modulator, timing and carrier NCOs, and dual 12‑bit DACs in a single 100‑lead MQFP package.
Key features include output sample rates up to 100 MSPS, input data rates up to 25 MSPS, a 32‑bit programmable carrier NCO, and digital signal processing with >70 dB SFDR. The document lists pinout, functional block diagrams, system clock generation, symbol NCO operation, and detailed ordering information.
| Output Sample Rate | to 100 MSPS |
|---|---|
| Input Data Rate | Up to 25 MSPS (/Q) |
| Carrier NCO | 32‑Bit Programmable |
| DAC Resolution | Dual 12‑bit |
| DSP SFDR | >70 dB |
| Package | 100‑lead MQFP Q100.14x20 |
| Operating Temperature | -40 °C to +85 °C |
| RoHS Compliance | Pb‑Free Plus Anneal Available |
The device supports output sample rates up to 100 MSPS.
It operates from –40 °C to +85 °C.
It is supplied in a 100‑lead MQFP package (Q100.14x20).