ZL10060 Datasheet, PDF (1/38 Pages) Zarlink Semiconductor Inc – MOPLL with IF AGC Amplifier

ZL10060
MOPLL with IF AGC Amplifier
Data Sheet
Features
• Highly integrated mixer/oscillator PLL and IF AGC
amplifier for multi band analog/digital terrestrial
tuners and/or cable tuners
• Low phase noise PLL frequency synthesizer
• AGC output level detect with digital controlled
TOP threshold
• >50 dB Desired/Undesired ratio without pre
filtering
• Separate analog and digital IF outputs
• >41 dB IF AGC Control range
• Power down modes to support power reduction
initiatives
• Four independent GPO
• 48 pin QFN Package
Applications
• DVB-T receiver systems
• ISDB-T receiver systems
• DVB-C cable receiver systems
• Terrestrial analog receivers
November 2005
Ordering Information
ZL10060LDG1 48 Pin QFN* Trays
ZL10060LDF1 48 Pin QFN* Tape and Reel
*Pb Free Matte Tin
-20°C to +85°C
Description
The ZL10060 is a 3 band MOPLL with IF AGC
amplifier. It down-converts the RF channel to a
standard IF followed by filtering and IF AGC
amplification for the digital channel. Each band
consists of a low noise preamplifier/mixer and local
oscillator with an external varactor tuned tank circuit.
An IF level detector is included for control of the RF
AGC. The Take Over Point and time constant are both
programmable.
The ZL10060 has high signal level handling
performance providing excellent performance in the
presence of high level unwanted signals.
All chip control is via I²C bus.
If higher performance is required, an alternative part,
ZL10063 is available with image reject down
conversion.
RF
Input
ZL10060
GPO
RF AGC
Tuning
VCO Tank
Circuits
Band
Pass
Filter
Analog Digital
IF SAW IF SAW
Analog
Analog IF _Demod
PLL
AGC
Det
I²C
Control
Digital IF
Digital
Demod
IF AGC
I²C
Loop
Filter
Figure 1 - Basic Block Diagram
1
Zarlink Semiconductor Inc.
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Copyright 2005, Zarlink Semiconductor Inc. All Rights Reserved.