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CXD1961Q Datasheet

  • CXD1961Q

  • DVB-S Front-end IC (QPSK demodulator + FEC)

  • 15頁

  • SONY   SONY

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CXD1961Q
DVB-S Front-end IC (QPSK demodulator + FEC)
Preliminary
For the availability of this product, please contact the sales office.
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
鈥?/div>
Dual 6 bit A/D converters
鈥?/div>
QPSK demodulator
Multi-symbol rate operation
Nyquist roll off filter (偽 = 0.35)
Clock recovery circuit
Carrier recovery circuit
AGC control circuit
Viterbi decoder
Constraint length K =7
Punctured rate R = 1/2 鈥?/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
l
2
C bus interface/8 bit CPU bus
TTL interface level (5V input capability)
JTAG(IEEE std 1149.1鈥?990) test mode
Package : QFP-100pin
Single +3.3V Power Supply
Symbol rate max:32MSPS min:TBD
Power consumption TBD
0.4um CMOS Technology
100 pin QFP (Plastic)
Absolute Maximum Ratings
(Ta=25擄C, GND=0V)
鈥?/div>
Supply voltage
V
DD
鈥?.5 to 4.6
V
鈥?Input voltage
鈥?Output voltage
鈥?I/O voltage
V
IN
鈥?.5 to V
DD
+0.5 V
V
OUT
鈥?.5 to V
DD
+0.5 V
V
I/O
鈥?.5 to V
DD
+0.5 V
V
V
CPUIF
鈥?.5 to 5.5
0 to +75
鈥?5 to +150
擄C
擄C
鈥?/div>
鈥?CPU I/F pin
鈥?/div>
Operating temperature Topr
鈥?/div>
Storage temperature Tstg
鈥?/div>
DC Recommended Operating Conditions
(Ta=0擄C to 75擄C, GND=0 V)
鈥?/div>
Supply voltage
V
DD
3.15 to 3.45
V
鈥?Input Hi-level
V
IH
V
DD
鈥?.7 to V
DD
+0.5 V
鈥?Input Lo-level
V
IL
0.3 to V
DD
+0.2 V
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Applications
鈥?/div>
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.
鈥?鈥?/div>
PE96417-TE

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