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Zarlink Semiconductor - DVB-C Cable Channel Demodulator

Numéro de référence ZL10210
Description DVB-C Cable Channel Demodulator
Fabricant Zarlink Semiconductor 
Logo Zarlink Semiconductor 





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ZL10210 fiche technique
ZL10210
DVB-C Cable Channel Demodulator
Data Sheet
Features
• DVB-C EN300429 and ITU-T J.83 annex A/C
compliant QAM demodulator
• Conventional IF and low IF input supported
• QAM constellations 16, 32, 64, 128 and 256
• Symbol rates up to 9 MBaud
• Blind acquisition of all symbol rates
• Blind acquisition of QAM constellations
www.DataSheet4US.cionmgle IF filter bandwidth for all symbol rates
• Signal level, BER and SNR indicators
• Programmable IF/RF AGC take-over point
• Power down mode under software control
• Parallel and serial MPEG outputs
• External 4 or 27 MHz clock or single low-cost
10 MHz crystal
• Small package size LQFP64 7x7 mm
• Power consumption <300 mW at 6.9 MBaud
• 5 V tolerant 2-wire bus control interface
• 5 V tolerant GPIO port and AGC outputs
• RF level detect facility via a separate ADC
• Very low driver software overhead due to on-chip
state-machine control.
• General purpose programmable timer
Applications
• Set-top boxes
• Digital cable ready TV applications
• Cable modems
• SMATV/MATV receivers
November 2005
Ordering Information
ZL10210/GC/GP1N 64 Pin LQFP
-40oC to +85oC
Description
The ZL10210 is a DVB-C and ITU-T annex A/C QAM
demodulator. This low power cable demodulator
includes standard Zarlink features of auto signal acqui-
sition, fast blind-scan capability, software/hardware
power down, RF level, BER and SNR detection. The
ZL10210 represents the latest in QAM demodulation
for DVB cable. Together with a cable tuner, a full digital
cable receiver front-end can be realized. Either
conventional intermediate frequencies such as 36 or
44 MHz or low intermediate frequencies can be used -
see application below. The ZL10210 requires only a
single channel filter bandwidth of 8 MHz nominal for full
DVB and ITU-T annex A/C performance. The low
power consumption, small package form factor and
integrated software/hardware power-down modes help
reduce the system BoM (bill of materials) in cost
sensitive applications. The device is packaged in a
7 x 7 mm 64-pin LQFP.
Functional Description
The ZL10210 accepts an analog signal from the tuner,
either at low Intermediate Frequency (IF) or conven-
tional IF up to 50 MHz, and delivers an MPEG2
compliant transport stream. It contains a single 10-bit
Figure 1 - System Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2005, Zarlink Semiconductor Inc. All Rights Reserved.

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