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ISL3084IR-TK 데이터시트(PDF) 1 Page - Intersil Corporation |
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ISL3084IR-TK 데이터시트(HTML) 1 Page - Intersil Corporation |
1 / 4 page 1 ® FN5042.3 ISL3084 5GHz VCO The ISL3084 is a 5GHz SiGe monolithic VCO circuit designed to simplify and reduce the cost and size of miniature wireless transceivers. A fully integrated VCO requiring no external elements such as inductors and varactors greatly simplifies low cost local oscillator synthesized applications. Included in this differential design is a low-power standby function and a stable process and temperature biasing operation. The ISL3084 is housed in a 16 lead QFN package well-suited for PCMCIA and miniPCI board applications. Pinout ISL3084 (QFN) TOP VIEW Features • Single Supply . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 3.3V • Frequency . . . . . . . . . . . . . . . . . . . . . . . . . 4.9GHz typical • Fully Integrated/No External Varactors or Resonators Required • Isolation Output Buffer/Reduced Load Pulling • Differential Design/Reduced Spurs • Digitally Controlled Power Down Mode • QFN Package: - Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline - Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile Applications • Systems Targeting IEEE802.11b, 11Mbps Standard • Only required VCO function for Intersil PRISM 3 chip set • WLAN Applications. • PCMCIA Wireless Transceivers • TDMA Packet Protocol Radios Simplified Block Diagram 11 12 14 15 16 6 5 4 3 2 1 VTUNE GND VCC GND GND 10 7 9 8 OSC+ 13 OSC- VCC Ordering Information PART NUMBER TEMP. RANGE (oC) PACKAGE PKG. NO. ISL3084IR -40 to 85 16 Ld QFN L16.4x4 ISL3084IR-TK -40 to 85 Tape and Reel VCO OSC+ OSC- VTUNE PE VCC VCC GND GND GND VCC BIAS Pin Descriptions PIN NUMBER NAME DESCRIPTION 1 VTUNE Input tuning voltage from loop filter. Sensitivity to external injected noise to KVCO. Careful noise-free layout recommended. 2, 6, 12 VCC Supply pins. Requires high quality capacitor RF decoupling. Phase noise behavior proportional to supply pushing specifications. Use good quality, low-frequency decoupling/filtering techniques. 5 PE Power enable control pin: VCO enabled high. 10 OSC- Differential VCO output. Terminate into 100 Ω differential impedance. Terminate one end into 50Ω when single end output with equivalent loss of power. 11 OSC+ 15 FILTER CAP1 Use high quality .68 µF filter capacitor to ground. 16 FILTER CAP2 Use high quality .68 µF filter capacitor to VCC. 3, 4, 7, 8, 9, 13, 14 GND Ground Paddle N/A Floating paddle. Grounding is recommended. Data Sheet May 2003 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2003. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. PRISM® is a registered trademark of Intersil Americas Inc. PRISM and design is a trademark of Intersil Americas Inc. |
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