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LMX2325TMX PDF预览

LMX2325TMX

更新时间: 2024-01-23 23:15:00
品牌 Logo 应用领域
美国国家半导体 - NSC 射频个人通信
页数 文件大小 规格书
22页 409K
描述
Frequency Synthesizer for RF Personal Communications

LMX2325TMX 技术参数

生命周期:Obsolete包装说明:SOP,
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.7Is Samacsys:N
模拟集成电路 - 其他类型:PLL FREQUENCY SYNTHESIZERJESD-30 代码:R-GDSO-G20
功能数量:1端子数量:20
最高工作温度:90 °C最低工作温度:-55 °C
封装主体材料:CERAMIC, GLASS-SEALED封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
认证状态:Not Qualified座面最大高度:2.59 mm
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):2.7 V
标称供电电压 (Vsup):3 V表面贴装:YES
技术:BICMOS温度等级:OTHER
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL宽度:6.76 mm
Base Number Matches:1

LMX2325TMX 数据手册

 浏览型号LMX2325TMX的Datasheet PDF文件第2页浏览型号LMX2325TMX的Datasheet PDF文件第3页浏览型号LMX2325TMX的Datasheet PDF文件第4页浏览型号LMX2325TMX的Datasheet PDF文件第5页浏览型号LMX2325TMX的Datasheet PDF文件第6页浏览型号LMX2325TMX的Datasheet PDF文件第7页 
September 1996  
LMX2315/LMX2320/LMX2325 PLLatinumTM  
Frequency Synthesizer  
for RF Personal Communications  
LMX2325 2.5 GHz  
LMX2320 2.0 GHz  
LMX2315 1.2 GHz  
General Description  
Features  
Y
RF operation up to 2.5 GHz  
The LMX2315/2320/2325’s are high performance frequen-  
cy synthesizers with integrated prescalers designed for RF  
operation up to 2.5 GHz. They are fabricated using Nation-  
al’s ABiC IV BiCMOS process.  
Y
2.7V to 5.5V operation  
Y
Low current consumption  
Y
Dual modulus prescaler:  
LMX2325  
LMX2320/LMX2315  
A 64/65 or a 128/129 divide ratio can be selected for the  
LMX2315 and LMX2320 RF synthesizer at input frequencies  
of up to 1.2 GHz and 2.0 GHz, while 32/33 and 64/65 divide  
ratios are available in the 2.5 GHz LMX2325. Using a propri-  
etary digital phase locked loop technique, the LMX2315/  
2320/2325’s linear phase detector characteristics can gen-  
erate very stable, low noise signals for controlling a local  
oscillator.  
32/33 or 64/65  
64/65 or 128/129  
Y
Internal balanced, low leakage charge pump  
Power down feature for sleep mode:  
Y
e
e
3V  
I
30 mA (typ) at V  
CC  
CC  
Y
Small-outline, plastic, surface mount TSSOP, 0.173  
wide  
×
Serial data is transferred into the LMX2320 and the  
LMX2325 via a three line MICROWIRETM interface (Data,  
Enable, Clock). Supply voltage can range from 2.7V to 5.5V.  
The LMX2315, LMX2320 and the LMX2325 feature very low  
current consumption, typically 6 mA, 10 mA and 11 mA re-  
spectively.  
Applications  
Y
Cellular telephone systems  
(GSM, IS-54, IS-95, (RCR-27)  
Y
Portable wireless communications (DECT, PHS)  
Y
CATV  
Y
Other wireless communication systems  
The LMX2315, LMX2320 and the LMX2325 are available in  
a TSSOP 20-pin surface mount plastic package.  
Block Diagram  
TL/W/12339–1  
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.  
MICROWIRETM and PLLatinumTM are trademarks of National Semiconductor Corporation.  
C
1996 National Semiconductor Corporation  
TL/W/12339  
RRD-B30M106/Printed in U. S. A.  
http://www.national.com  

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