LMX2346SLBX Datasheet

IC型號：
LMX2346SLBX
PDF描述：
PLLatinum⑩ Frequency Synthesizer for RF Personal Communicat...
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LMX2346/LMX2347 PLLatinum Frequency Synthesizer for RF Personal Communications

June 2004

LMX2346/LMX2347

PLLatinum

鈩?/div>

Frequency Synthesizer for RF Personal

Communications

LMX2346 2.0 GHz

LMX2347 2.5 GHz

General Description

The LMX2346/7 are high performance frequency synthesiz-

ers with an integrated 32/33 dual modulus prescaler. The

LMX2346 is designed for RF operation up to 2.0 GHz. The

LMX2347 is designed for RF operation up to 2.5 GHz. Using

a proprietary digital phase locked loop technique, the

LMX2346/7 generates very stable, low noise control signals

for UHF and VHF voltage controlled oscillators.

Serial data is transferred into the LMX2346/7 via a three-line

MICROWIRE interface (DATA, LE, CLOCK). Supply voltage

range is from 2.7V to 5.5V. The charge pump provides 4 mA

output current.

The LMX2346/7 are manufactured using National鈥檚 0.5碌

ABiC V silicon BiCMOS process and is available in 16-pin

TSSOP and 16-pin CSP packages.

Features

RF operation up to 2.5 GHz

2.7V to 5.5V operation

Digital & Analog Lock Detect

32/33 Dual modulus prescaler

Excellent Phase Noise

Internal balanced, low leakage charge pump

Pin Compatible to LMX2323

Applications

Cellular DCS/PCS/3G infrastructure equipment

Wireless Local Area Networks (WLANs)

Other wireless communication systems

Functional Block Diagram

20038406

PLLatinum

鈩?/div>

is a trademark of National Semiconductor Corporation.

漏 2004 National Semiconductor Corporation

DS200384

www.national.com

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