HSP50307 Overview
The HSP50307 is a mixed signal burst QPSK Modulator for upstream CATV Applications. The HSP50307 demultiplexes and modulates a serial data stream onto an RF Carrier centered between 8 and 15MHz. The signal spectrum is shaped with α = 0.5 root raised cosine (RRC) digital filters.
HSP50307 Key Features
- 256 KBPS Data Rate and 128 KBPS Baud Rate
- Burst QPSK Modulation
- Programmable Carrier Frequency from 8MHz to 15MHz With a Frequency Step Size of 32kHz
- α = 0.5 Root Raised Cosine (RRC) Filtering For Spectrum Shaping
- On-Board Synthesizer
- Programmable Output Level From 22 to 62dBmV in 1dB Steps
- Programmable Charge Pump Current Control
- 62dBmV Differential Output Driver for 75Ω Cable