CXD1961Q Datasheet, PDF (1/15 Pages) Sony Corporation – DVB-S Front-end IC (QPSK demodulator + FEC)

CXD1961Q
DVB-S Front-end IC (QPSK demodulator + FEC) _Preliminary
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Description
The CXD1961Q is a single chip DVB Satellite
100 pin QFP (Plastic)
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 descrambler
• CPU interface
l²C bus interface/8 bit CPU bus
TTL interface level (5V input capability)
• JTAG(IEEE std 1149.1–1990) test mode
• Package : QFP-100pin
• Single +3.3V Power Supply
• Symbol rate max:32MSPS min:TBD
• Power consumption TBD
• 0.4um CMOS Technology
Absolute Maximum Ratings (Ta=25°C, GND=0V)
• Supply voltage
VDD
–0.5 to 4.6 V
• Input voltage
VIN –0.5 to VDD+0.5 V
• Output voltage
VOUT –0.5 to VDD+0.5 V
• I/O voltage
VI/O –0.5 to VDD+0.5 V
• CPU I/F pin
VCPUIF –0.5 to 5.5 V
• Operating temperature Topr
0 to +75 °C
• Storage temperature Tstg –55 to +150 °C
DC Recommended Operating Conditions
(Ta=0°C to 75°C, GND=0 V)
• Supply voltage
VDD 3.15 to 3.45 V
• Input Hi-level
VIH VDD–0.7 to VDD+0.5 V
• Input Lo-level
VIL 0.3 to VDD +0.2 V
Applications
• DVB-S Set Top Box (Satellite)
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
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PE96417-TE