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MAX9987 PDF预览

MAX9987

更新时间: 2024-01-12 08:45:47
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
12页 371K
描述
+14dBm to +20dBm LO Buffers/Splitters with ±.1dB Variation

MAX9987 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete包装说明:5 X 5 MM, QFN-20
Reach Compliance Code:not_compliant风险等级:5.91
特性阻抗:50 Ω构造:COMPONENT
最大输入功率 (CW):43.01 dBmJESD-609代码:e0
安装特点:SURFACE MOUNT端子数量:20
最大工作频率:1100 MHz最小工作频率:700 MHz
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装等效代码:LCC20,.20SQ,25
电源:5 V射频/微波设备类型:SPLITTER
子类别:RF/Microwave Splitter/Combiners最大压摆率:171 mA
表面贴装:YES技术:BICMOS
端子面层:Tin/Lead (Sn/Pb)最大电压驻波比:1.7
Base Number Matches:1

MAX9987 数据手册

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19-2416; Rev 1; 10/02  
+14dBm to +20dBm LO Buffers/Splitters  
with 1dB ꢀariation  
General Description  
Features  
The MAX9987 and MAX9988 LO buffers/splitters each  
integrate a passive two-way power splitter with high-  
isolation input and output buffer amplifiers. These  
buffers are designed to provide the high output  
(+14dBm to +20dBm) necessary to drive the LO inputs  
of high-linearity passive mixers, while offering 40dB  
reverse isolation to prevent LO pulling. The MAX9987 is  
internally matched for the cellular/GSM bands, and the  
MAX9988 is matched for the DCS/PCS/UMTS bands.  
±±1dB OutOuBꢀPoweBꢁVerVurPꢂ  
+±41dmBuPB+201dmBA1jOsuVblwB OutOuBꢀPowe  
ToP-WVyBꢀPoweBStlruurꢂg  
401dBRwvweswBIsPlVurPꢂ  
MPewBuhVꢂB301dB OutOu-uP- OutOuBIsPlVurPꢂ  
LPoB OutOuBNPrsw:B-±701dc/HzBVuB+±71dm  
±60mABSOttlyBCOeewꢂuBVuB+±71dm  
ESDBꢀePuwcurPꢂ  
The typical application circuit provides a nominal  
+17dBm output power with 1dB variation over supply,  
temperature, and input power. With two optional resis-  
tors, the output power can be precision set from  
+14dBm to +20dBm. The devices offer more than 30dB  
IsPlVuw1BꢀLLB OutOuB(+31dm)  
output-to-output port isolation, and are offered in 5mm  
5mm 20-pin QFN packages with exposed paddle.  
Applications  
Ordering Information  
Cellular/GSM/DCS/PCS/UMTS Base Station  
Tx/Rx LO Drive  
TEMꢀ  
RANGE  
ꢀIN-  
ꢀACKAGE  
FREQUENCY  
RANGE  
ꢀART  
Base Station Main and Diversity Channels  
Coherent Receivers  
700MHz to  
1100MHz  
MAX9987EGP -40°C to 85°C 20 QFN-EP*  
ISM Wireless LAN  
1500MHz to  
2200MHz  
MAX9988EGP -40°C to 85°C 20 QFN-EP*  
*EP = Exposed paddle.  
Wireless Local Loop  
Local Multipoint Distribution Service  
Point-to-Point Systems  
Typical Operating Circuit and Block Diagram  
RF INPUT  
(1)  
OUTPUT AMP  
(1)  
PLL BUFFER  
MAX9987  
MAX9988  
OUTPLL  
(+3dBm)  
TO PLL  
PRESCALER  
OUT1  
(+17dBm)  
IF OUTPUT  
(1)  
IN  
(+7dBm)  
RF INPUT  
(2)  
INPUT AMP  
RF LO  
PASSIVE TWO-WAY  
POWER SPLITTER  
OUT2  
(+17dBm)  
IF OUTPUT  
(2)  
BIAS  
OUTPUT AMP  
(2)  
BIASIN  
BIASOUT  
BIAS  
CONTROL  
NETWORK  
________________________________________________________________ Maxim Integrated Products  
±
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  

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