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LMX1501A Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LMX1501A
Description  PLLatinumTM 1.1 GHz Frequency Synthesizer for RF Personal Communications
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LMX1501A Datasheet(HTML) 1 Page - National Semiconductor (TI)

 
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TLW12340
November 1995
LMX1501ALMX1511 PLLatinum
TM
11 GHz Frequency Synthesizer
for RF Personal Communications
General Description
The LMX1501A and the LMX1511 are high performance fre-
quency synthesizers with integrated prescalers designed for
RF operation up to 11 GHz They are fabricated using Na-
tional’s ABiC IV BiCMOS process
The LMX1501A and the LMX1511 contain dual modulus
prescalers which can select either a 6465 or a 128129
divide ratio at input frequencies of up to 11 GHz Using a
proprietary digital phase locked loop technique
the
LMX1501A11’s linear phase detector characteristics can
generate very stable low noise local oscillator signals
Serial data is transferred into the LMX1501A and the
LMX1511 via a three line MICROWIRETM interface (Data
Enable Clock) Supply voltage can range from 27V to 55V
The LMX1501A and the LMX1511 feature very low current
consumption typically 6 mA at 3V
The LMX1501A is available in a JEDEC 16-pin surface
mount plastic package The LMX1511 is available in a
TSSOP 20-pin surface mount plastic package
Features
Y
RF operation up to 11 GHz
Y
27V to 55V operation
Y
Low current consumption
ICC e 6 mA (typ) at VCC e 3V
Y
Dual modulus prescaler 6465 or 128129
Y
Internal balanced low leakage charge pump
Y
Small-outline
plastic
surface mount JEDEC
0150
wide (1501A) or TSSOP 0173
wide (1511) package
Applications
Y
Cellular telephone systems
(AMPS NMT ETACS)
Y
Portable wireless communications
(PCSPCN Cordless)
Y
Advanced cordless telephone systems
(CT-1CT-1a CT-2 ISM902-928)
Y
Other wireless communication systems
Block Diagram
TLW12340 – 1
TRI-STATE
is a registered trademark of National Semiconductor Corporation
MICROWIRETM and PLLatinumTM are trademarks of National Semiconductor Corporation
C1995 National Semiconductor Corporation
RRD-B30M115Printed in U S A


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