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參數(shù)資料
| 型號： | LM2324TMX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | PLLatinum⑩ 2.0 GHz Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 2200 MHz, PDSO16 |
| 封裝： | TSSOP-16 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 157K |
| 代理商： | LM2324TMX |
LMX2324
PLLatinum
2.0 GHz Frequency Synthesizer for RF
Personal Communications
General Description
The LMX2324 is a high performance frequency synthesizer
with integrated 32/33 dual modulus prescaler designed for
RF operation up to 2.0 GHz. Using a proprietary digital
phase locked loop technique, the LMX2324’s linear phase
detector characteristics can generate very stable, low noise
control signals for UHF and VHF voltage controlled oscilla-
tors.
Serial data is transferred into the LMX2324 via a three-line
MICROWIRE
interface (Data, LE, Clock). Supply voltage
range is from 2.7V to 5.5V. The LMX2324 features very low
current consumption, typically 3.5 mA at 3V. The charge
pump provides 4 mA output current.
The LMX2324 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
n
RF operation up to 2.0 GHz
n
2.7V to 5.5V operation
n
Low current consumption: I
CC
= 3.5 mA (typ) at V
CC
=
3.0V
n
Dual modulus prescaler: 32/33
n
Internal balanced, low leakage charge pump
Applications
n
Cellular telephone systems (GSM, NADC, CDMA, PDC)
n
Personal wireless communications (DCS-1800, DECT,
CT-1+)
n
Wireless local area networks (WLANs)
n
Other wireless communication systems
Functional Block Diagram
TRI-STATE
is a registered trademark of National Semiconductor Corporation.
MICROWIRE
and PLLatinum
are trademarks of National Semiconductor Corporation.
DS101030-1
PRELIMINARY
November 1999
L
1999 National Semiconductor Corporation
DS101030
www.national.com
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