Digital TV QAM/QPSK/COFDM modulator

Quick Detail

Package & Delivery Lead Time

Detailed Description

CATV DVB-C Digital Modulator: Outline COL5400A QAM Modulator, is the main equipment CATV digital head-end, receiving DVB transport streams which come from coder, multiplexer, DVB gateway, scrambler, video server etc. It does signal processing like RS coding, convolution interleaving and QAM modulating, providing IF/RF output. Features ü Complying DVB standard signal channel coding. ü Support full range variable data rate, bandwidth and QAM mode Data stuffing ü super buffer (optional),anti-burst code stream ü PID filter, re-reflection, PSI,SI information synchronal updating possible. ü Automatically code stream stuffing and empty pocket deleting. ü Code stream real-time monitoring, empty pocket filtering ü Support NIT table modifying ü real-time code stream monitoring ü PCR adjusting, output symbol rate variable:1-7Ms/s ü Fixed or agile channel output; ü Providing ASI and Ds3 input port and output port (optional) ü Providing RF output monitoring port(-20dB) ü Local or Remote administration possible. ü LCD display, flexible in operating ü High reliability design, stable in running Specifications Data interface ASI interface (Asynchronous Serial interface) Input Connector Impedance Packet format Access data rate Max valid bit rate DVB standard BNC 75Ω 188/204 bits 270Mbps 51.6Mbps Loop output Connector Impedance BNC 75Ω SPI input interface(Synchronous Parallel interface) Connector Packet format DVB Standard DB-25 female 188 or 204 bits LVDS IF interface IF input Connector Impedance IF frequency BNC 50Ω 35.25/36/36.15/44 MHz (optional) IF Bandwidth≤8MHz Reflect loss ≥18dB Input level 100dBuV (rms) IF loop output Connector BNC Impedance IF frequency IF Bandwidth≤8MHz Reflect loss ≥18dB Output level 50Ω 35.25/36/36.15/44 MHz (optional) 100±2dBuV(rms) RF interface RF output Connector Impedance Output Frequency BNC 75Ω 48~800MHz Reflect loss ≥15dB Output level 105~115dBuV (adjustable) Carrier rejection SNR(out of band) > 55dB ≥50dB RF output for test Connector Impedance Output level BNC 75Ω 85dBuV~105dBuV (adjustable) Channel signal encoding Constellation Channel encoding MER SNR(out of band) 16QAM, 32QAM, 64QAM, 128QAM, 256QAM. RS encode, DVB standard ≥42dB ≥50dB To know more details ,welcome to contact our salesman! Castar technology Co,.LTD

Basic Company Information

Castar Technology Co,.LTD

Company Advantage

Detail Company Introduction