ZL10313
Satellite Demodulator
Data Sheet
Features
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August 2004
Conforms to EBU specification for DVB-S and
DirecTV specification for DSS
On-chip digital filtering supports 1 - 45 MSps
symbol rates
On-chip 60 or 90 MHz dual-ADC
High speed scanning mode for blind symbol
rate/code rate acquisition
Automatic spectral inversion resolution
High level software interface for minimum
development time
Up to ±22.5 MHz LNB frequency tracking
DiSEqC™ v2.2: receive/transmit for full control of
LNB, dish and other components
Compact 64-pin LQFP package (7 x 7 mm)
A full DVB-S front-end reference design is
available, ref. ZLE10538
Ordering Information
ZL10313QCG
0°C to +70°C
Description
The ZL10313 is a QPSK/BPSK 1 - 45 MSps
demodulator and channel decoder for digital satellite
television transmissions to the European Broadcast
Union ETS 300 421 specification. It receives analogue
I and Q signals from the tuner, digitises and digitally
demodulates this signal, implements the complete
DVB/DSS FEC (Forward Error Correction) and descrambling function. The output is in the form of
MPEG2 or DSS transport stream data packets. The
ZL10313 also provides automatic gain control to the RF
front-end device.
Applications
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DVB 1 - 45 MSps compliant satellite receivers
DSS 20 MSps compliant satellite receivers
SMATV (Single Master Antenna TV) transmodulators
Satellite PC applications
The ZL10313 has a serial 2-wire bus interface to the
control microprocessor. Minimal software is required to
control the ZL10313 because of the built in automatic
search and decode control functions.
I I/P
Dual ADC
De-rotator
Decimation
Filtering
Q I/P
Analog
AGC
Control
64 pin LQFP
Timing recovery
Matched filter
Phase recovery
Acquisition
Control
Clock Generation
DVB
DSS
FEC
2-Wire Bus
Interface
Figure 1 - Functional Block Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2004, Zarlink Semiconductor Inc. All Rights Reserved.
MPEG/
DSS
Packets
Bus I/O
