GX1001……QAM (DVB-C)

Product description：
　 GX1001 is the channel decoder and demodulator IC compliant with DVB-C Standards. With patented technologies, GX1001 provides outstanding performance in anti-echo (multi-path) and echo delays, carrier frequency error correction as well as in low power consumption. In consequence, GX1001 is particularly suitable for complex cable network environment; it helps set-top-box (STB) manufacturers and cable operators to reduce the maintenance expenses of STB and is the first choice for cable STB and tuner manufacturers.
Features：
· Compliant with DVB-C (ITU-Tj.83 A/C)
　 Supports 16、32、64、128、256QAM mode
　 Supports MPEG TS output format
· Integrates high precision ADC with 10bits,40MSPS
　 Prepared for direct IF Sampling inhigh/low frequencies on various formats
· Full digital demodulation,reducing the cost and complexity of systems
　 Digital timing recovery without external VCXO,locking large symbol rate offset
　 Innovative frequency scan and decision loop,insuring precision and tracking range above ±400KHZ
　 Unique blind & DFE equalization algorithm,canceling the distortion and up to -1.8dB echo
　 Wide symbol rate range:0.45～9Mbauds
· Flexible and friendly interface
　 Two AGC control modes with flexible configuration for all kinds of AGC amplifier
　 2-wire serial bus configuration,minimized configuration registers to facilitate monitoring and controlling
　 Integrates 2-wire serial bus repeater,reduces the disturbance of tuner
　 Integrates PLL,only passive crystal oscillator needed
· Others
　 Power consumption：<300mW(6.9Mbauds)
　 Voltage：3.3V(I/O), 1.8V(Core)
　 Package：64QFP or 64LQFP
Application fields：
· cable STB
· cable tuner
· CATV receiving card
Solution：

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