LMX2324A Datasheet, PDF (1/12 Pages) National Semiconductor (TI) – PLLatinum™ 2.2 GHz Frequency Synthesizer for RF Personal Communications (SL163188)

LMX2324A
July 30, 2009
PLLatinum™ 2.2 GHz Frequency Synthesizer for RF
Personal Communications (SL163188)
General Description
The LMX2324A is a high performance frequency synthesizer
with integrated 32/33 dual modulus prescaler designed for RF
operation up to 2.2 GHz. Using a proprietary digital phase
locked loop technique, the LMX2324A's linear phase detector
characteristics can generate very stable, low noise control
signals for UHF and VHF voltage controlled oscillators.
Serial data is transferred into the LMX2324A via a three-line
MICROWIRE™ interface (Data, LE, Clock). Supply voltage
range is from 2.7V to 5.5V. The LMX2324A features very low
current consumption, typically 3.5 mA at 3V. The charge
pump provides 4 mA output current.
The LMX2324A is manufactured using National's ABiC V
BiCMOS process and is packaged in a 16-pin TSSOP and a
16-pin Chip Scale Package (CSP).
Features
■ ^{RF operation up to 2.2 GHz}
■ ^{2.7V to 5.5V operation}
■ ^{Low current consumption: I}_CC ^{= 3.5 mA (typ) at V}_CC ^{= 3.0V}
■ ^{Dual modulus prescaler: 32/33}
■ ^{Internal balanced, low leakage charge pump}
Applications
■ ^{Cellular telephone systems (GSM, NADC, CDMA, PDC)}
■ ^{Personal wireless communications (DCS-1800, DECT,}
CT-1+)
■ ^{Wireless local area networks (WLANs)}
■ ^{Other wireless communication systems}
Functional Block Diagram
PLLatinum™ is a trademark of National Semiconductor Corporation.
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
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