NDS2405 ISDB-T Modulator

Outline NDS2405 ISDB-T modulator is developed to adapt Japan and Brazil, Argentina and other South America country’s terrestrial digital television, the modulator's channel coding and modulation fully support the ARIB STD-B31 standard. Support dual TS hot backup input, support for single frequency network and multi-frequency network, linear and nonlinear pre-correction function, layered transmission and three kinds of transmission mode of standard. Through the network carry out line upgrade and control to the system, is widely used in ISDB-T digital broadcasting network's setting up and meet the ISDB-T standard set-top box design's production and test Feature Fully compliant to ARIB STD-B31 (ISDB-T)Supports both SFN and MFNSupports hierarchy transmitSupports digital linear and non-linear pre-distortionExcellent phase noise and MER performanceRF output range of 50 860Mhz, 1hz step2 ASI inputs with loop out and hot-backup onlineConstant temperature crystal and excellent frequency stabilityLCD display, keyboard and network management Specification Signal input 2 Way ASI input, support hot backup Support 188/204Byte transport stream packets Support the transport stream packet mode and burst mode Connector Specifications:BNC Block, impedance 75Ω Modulation and channel coding Modulation Carrier Number: 1024,2048,4096 Outer code:RS code Inner code:PCC code (Punctured Convolutional code) Coding rate:1/2,2/3,3/4,5/6,7/8 Guard Interval:1/4,1/8,1/16,1/32 Modulation constellation:DQPSK,QPSK,16QAM,64QAM Hierarchical Manner:A,A+B,A+B+C RF output Connector specification;:F Block, impedance 75Ω Center frequency:250MHZ 1000MHZ,Step;1HZ Attenuation:0dB 16dB,Step;0.5dB Bandwidth:6MHZ Modulation error code rate(MER):≥38dB The main signal level :0dB±2dB Working condition Size :44mm×482mm×410mm Environment:0 45 ºC(operating):-20 80 ºC(storage) Power :220VAC±10%,50Hz,10W