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ISL3685IR PDF预览

ISL3685IR

更新时间: 2024-11-24 04:22:55
品牌 Logo 应用领域
英特矽尔 - INTERSIL 转换器
页数 文件大小 规格书
19页 199K
描述
2.4GHz RF/IF Converter and Synthesizer

ISL3685IR 数据手册

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ISL3685  
TM  
Data Sheet  
January 2001  
File Number 4860.2  
2.4GHz RF/IF Converter and Synthesizer  
Features  
The ISL3685 is a monolithic SiGe  
half duplex RF/IF transceiver  
designed to operate in the 2.4GHz  
• Highly Integrated  
• Multiplexed RX/TX IF Path prescribes Single IF Filter  
• Programmable Synthesizer  
ISM band. The receive chain features  
a low noise, gain selectable amplifier (LNA) followed by a  
down-converter mixer. An up-converter mixer and a high  
performance preamplifier compose the transmit chain. The  
remaining circuitry comprises a high frequency Phase  
Locked Loop (PLL) synthesizer with a three wire  
programmable interface for local oscillator applications.  
• Gain Selectable LNA  
• Power Management/Standby Mode  
• Single Supply 2.7V to 3.3V Operation  
Cascaded LNA/Mixer (High Gain)  
• Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25dB  
A reduced filter count is realized by multiplexing the receive  
and transmit IF paths and by sharing a common differential  
matching network. Furthermore, both transmit and receive  
RF amplifiers can be directly connected to mixers as  
bandwidth characteristics attenuate image frequencies. The  
inherent image rejection of both the transmit and receive  
functions allows this economic advantage.  
• SSB Noise Figure. . . . . . . . . . . . . . . . . . . . . . . . . . . 3.7dB  
• Input IP3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -12dBm  
• IF Frequency . . . . . . . . . . . . . . . . . . . 280MHz to 600MHz  
Cascaded LNA/Mixer (Low Gain)  
• Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -9dB  
The ISL3685 is housed in a 44 lead MLFP package well  
suited for PCMCIA board and MINI PCI applications.  
• Input P1dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.5dBm  
• IF Frequency . . . . . . . . . . . . . . . . . . . 280MHz to 600MHz  
Ordering Information  
Cascaded Mixer/Preamplifier  
Transmit Cascaded Mixer/Preamplifier Gain . . . . . . .25dB  
TEMP RANGE  
o
PART NUMBER  
ISL3685IR  
( C)  
PACKAGE  
44 Ld MLFP  
Tape and Reel  
PKG. NO  
• SSB Noise Figure. . . . . . . . . . . . . . . . . . . . . . . . . . . .10dB  
• Output P1dB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4dBm  
• IF Frequency . . . . . . . . . . . . . . . . . . . 280MHz to 600MHz  
-40 to 85  
-40 to 85  
L44.7x7  
ISL3685IR96  
Simplified Block Diagram  
Applications  
• IEEE802.11 1Mbps and 2Mbps Standard  
• Systems Targeting IEEE802.11, 11Mbps Standard  
• Wireless Local Area Networks  
• PCMCIA Wireless Transceivers  
• ISM Systems  
RX_IN  
RX_MX_OUT  
• TDMA Packet Protocol Radios  
• MINI PCI Wireless Transceivers  
CP_DO  
INTERFACE  
PLL  
LO_IN  
MODULE  
REF_IN  
TXA_OUT  
TX_MX_IN  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1
1-888-INTERSIL or 321-724-7143 | Intersil and Design is a trademark of Intersil Americas Inc. | Copyright © Intersil Americas Inc. 2000  
PRISM® is a registered trademark of Intersil Americas Inc. PRISM and design is a trademark of Intersil Americas Inc.  

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