VES1993 Description
The VES 1993 is a single-chip channel receiver for satellite television reception which matches both DSS and DVB-S standards. The device contains a dual 6-bit flash analog to digital converter, variable rate BPSK/QPSK coherent demodulator and Forward Error Correction functions.The ADCs directly interface with I and Q analog baseband signals. After A to D conversion, the VES 1993 implements a bank of cascadable...
VES1993 Key Features
- DSS and DVB-S patible single chip demodulator & forward error correction
- Dual 6-bit ADC on chip
- PLL for crystal frequency multiplication
- Variable rate BPSK/QPSK coherent demodulator
- Modulation rate from 1 to 45MBaud
- Automatic Gain Control output
- Digital symbol timing recovery : Acquisition range up to ±240ppm
- Digital carrier recovery : Acquisition range up to ±12% of symbol rate
- Half Nyquist baseband filters on chip roll-off = 0.35 for DVB and 0.2 for DSS
- Channel quality estimation