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SP5748 Datasheet(PDF) 1 Page - Mitel Networks Corporation

Part # SP5748
Description  2.4GHz Very Low Phase Noise PLL
PDF  15 Pages
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Manufacturer  MITEL [Mitel Networks Corporation]
Direct Link  http://www.mitel.com
Logo MITEL - Mitel Networks Corporation

SP5748 Datasheet(HTML) 1 Page - Mitel Networks Corporation

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FEATURES
q Complete 2.4 GHz single chip system
(for faster device refer to to SP5768)
q Optimised for low phase noise, with comparison
frequencies up to 4 MHz
q No RF prescaler
q Selectable reference division ratio
q Reference frequency output
q Selectable charge pump current
q Integrated loop amplifier
q Two switching ports
q Low power replacement for SP5658 and 5668
q Downwards software compatible with SP5658
q ESD protection, (Normal ESD handling
procedures should be observed)
ORDERING INFORMATION
SP5748/KG/MP1S (Tubes)
SP5748/KG/MP1T (Tape and Reel)
The SP5748 is a single chip frequency synthesiser
designed for tuning systems up to 2.4 GHz and is
optimized for low phase noise with comparison
frequencies up to 4 MHz. It is designed to be downwards
software compatible with the SP5658.
The RF programmable divider contains a front end dual
modulus 16/17 functioning over the full operating range
and allows for coarse tuning in the upconverter
application and fine tuning in the downconverter.
Comparison frequencies are obtained either from a
crystal controlled on-chip oscillator or from an external
source. a buffered reference frequency output is also
available to drive a second SP5748.
The device also contains 2 switching ports.
MP14
Figure1 Pin connections - top view
14
CHARGE PUMP
CRYSTAL CAP
CRYSTAL
ENABLE
DATA
CLOCK
PORT P1/OC
DRIVE
V
EE
RF INPUT
RF INPUT
V
CC
REF
PORT P0/OP
APPLICATIONS
q TV, VCR and Cable tuning systems
q Communications systems
SP5748
2.4GHz Very Low Phase Noise PLL
Advance Information
DS4875 - 1.3 November 1998


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