HSP50307 Datasheet (Intersil Corporation)

HSP50307, Burst QPSK Modulator

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.

On-chip ﬁltering limi

HSP50307 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

* Progr