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LMX2314

Part Number	LMX2314
Manufacturer	National Semiconductor
Description	1.2 GHz Frequency Synthesizer
Published	Jul 3, 2014
Detailed Description	LMX2314 LMX2315 PLLatinum 1 2 GHz Frequency Synthesizer for RF Personal Communications March 1995 LMX2314 LMX2315 PLLa...
Datasheet	LMX2314 PDF File

Overview

LMX2314 LMX2315 PLLatinum 1 2 GHz Frequency Synthesizer for RF Personal Communications March 1995 LMX2314 LMX2315 PLLatinum TM 1 2 GHz Frequency Synthesizer for RF Personal Communications General Description The LMX2314 and the LMX2315 are high performance frequency synthesizers with integrated prescalers designed for RF operation up to 1 2 GHz They are fabricated using National’s ABiC IV BiCMOS process The LMX2314 and the LMX2315 contain dual modulus prescalers which can select either a 64 65 or a 128 129 divide ratio at input frequencies of up to 1 2 GHz Using a proprietary digital phase locked loop technique the LMX2314 15’s linear phase detector characteristics can generate very stable 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 2 7V to 5 5V 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 Y Y Y Y Y Y RF operation up to 1 2 GHz 2 7V to 5 5V operation Low current consumption ICC e 6 mA (typ) at VCC e 3V Dual modulus prescaler 64 65 or 128 129 Internal balanced low leakage charge pump Power down feature for sleep mode ICC e 30 mA (typ) at VCC e 3V Small-outline plastic surface mount JEDEC 0 150 wide (2314) or TSSOP 0 173 wide (2315) package Applications Y Y Y Cellular telephone systems (GSM IS-54 IS-95 RCR-27) Portable wireless communications (DECT ISM902-928 CT-2) Other wireless communication systems Block Diagram TL W 11766 – 1 TRI-STATE is a registered trademark of National Semiconductor Corporation MICROWIRETM and PLLatinumTM are trademarks of National Semiconductor Corporation C1995 National Semiconductor Corporation TL W 11766 RRD-B30M115 Printed in U S A Connection Diagrams LMX2314 LMX2315 TL W 11766–2 JEDEC 16-L...

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