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LMX2314 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LMX2314
Description  1.2 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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LMX2314 Datasheet(HTML) 1 Page - National Semiconductor (TI)

 
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TLW11766
March 1995
LMX2314LMX2315 PLLatinum
TM
12 GHz Frequency Synthesizer
for RF Personal Communications
General Description
The LMX2314 and the LMX2315 are high performance fre-
quency synthesizers with integrated prescalers designed for
RF operation up to 12 GHz They are fabricated using Na-
tional’s ABiC IV BiCMOS process
The LMX2314 and the LMX2315 contain dual modulus pre-
scalers which can select either a 6465 or a 128129 divide
ratio at input frequencies of up to 12 GHz Using a proprie-
tary digital phase locked loop technique the LMX231415’s
linear phase detector characteristics can generate very sta-
ble low noise local oscillator signals
Serial data is transferred into the LMX2314 and the
LMX2315 via a three line MICROWIRETM interface (Data
Enable Clock) Supply voltage can range from 27V to 55V
The LMX2314 and the LMX2315 feature very low current
consumption typically 6 mA at 3V
The LMX2314 is available in a JEDEC 16-pin surface mount
plastic package The LMX2315 is available in a TSSOP
20-pin surface mount plastic package
Features
Y
RF operation up to 12 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
Power down feature for sleep mode
ICC e 30 mA (typ) at VCC e 3V
Y
Small-outline
plastic
surface mount JEDEC
0150
wide (2314) or TSSOP 0173
wide (2315) package
Applications
Y
Cellular telephone systems
(GSM IS-54 IS-95 RCR-27)
Y
Portable wireless communications
(DECT ISM902-928 CT-2)
Y
Other wireless communication systems
Block Diagram
TLW11766 – 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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