Description
The CXD1961AQ is a single chip DVB compliant Satellite Broadcasting Frontend IC, including dual A/D converter for analog baseband I/Q input, QPSK demodulator, Viterbi decoder Reed-Solomon decoder and Energy Dispersal descrambler. It is suitable for use in a DVB Integrated Receiver Decoder.

FEATUREs
• Dual 6 bit A/D converter
• QPSK demodulator
    Multi-symbol rate operation
    Nyquist Roll off filter (α = 0.35)
    Clock recovery circuit
    Carrier recovery circuit
    AGC control (PWM output)
• Viterbi decoder
    Constraint length 7
    Truncation length 144
    BER monitor of QPSK demodulator output
• Frame synchronization circuit
• Convolutional de-interleaver
• Reed-Solomon decoder (204,188) BER monitor of Viterbi decoder output
• Energy dispersal descrambler
• CPU interface circuit I2C bus interface (5V input capability)
• Package QFP 100pin
• Operating frequency 20 to 30MSPS
• Power consumption 750mW (@3.3V 30MSPS typical)
• Process 0.4µm CMOS Technology

APPLICATION
    DVB-S Set Top Box (Satellite)