Description
The CXD1961Q is a single chip DVB Satellite Broadcasting Front-end IC, including dual ADC for analog I/O inputs, QPSK demodulator, Viterbi decoder, de-interleaver, Reed-Solomon decoder and Energy Dispersal descrambler.
It is suitable for use in a DVB Integrated Receiver Decoder.
Features
- Dual 6 bit A/D converters.
- QPSK demodulator Multi-symbol rate operation Nyquist roll off filter (α = 0.35) Clock recovery circuit Carrier recovery circuit AGC control circuit.
- Viterbi decoder Constraint length K =7 Punctured rate R = 1/2.
- 7/8 Truncation length 144 Punctured rate search function BER monitor.
- De-interleaver Packet synchronization Convolutional de-interleaver.
- Reed-Solomon decoder (204, 188).
- Energy dispersal descramble.