參數(shù)資料
型號(hào): LMX2346TM/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO16
封裝: TSSOP-16
文件頁數(shù): 1/27頁
文件大?。?/td> 597K
代理商: LMX2346TM/NOPB
LMX2346/LMX2347
PLLatinum 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’s 0.5
ABiC V silicon BiCMOS process and is available in 16-pin
TSSOP and 16-pin CSP packages.
Features
n
RF operation up to 2.5 GHz
n
2.7V to 5.5V operation
n
Digital & Analog Lock Detect
n
32/33 Dual modulus prescaler
n
Excellent Phase Noise
n
Internal balanced, low leakage charge pump
n
Pin Compatible to LMX2323
Applications
n
Cellular DCS/PCS/3G infrastructure equipment
n
Wireless Local Area Networks (WLANs)
n
Other wireless communication systems
Functional Block Diagram
20038406
PLLatinum is a trademark of National Semiconductor Corporation.
November 2002
LMX2346/LMX2347
PLLatinum
Frequency
Synthesizer
for
RF
Personal
Communications
2002 National Semiconductor Corporation
DS200384
www.national.com
相關(guān)PDF資料
PDF描述
LMX2346TMX/NOPB PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO16
LMX2346SLBX/NOPB PLL FREQUENCY SYNTHESIZER, 2000 MHz, CQCC16
LMX2350TM/NOPB PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO24
LMX2352SLB PLL FREQUENCY SYNTHESIZER, 1200 MHz, PQCC24
LMX2352SLBX PLL FREQUENCY SYNTHESIZER, 1200 MHz, PQCC24
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