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Part: ISL3990
Category:
Communication
-> Wireless
-> Wireless LAN
Description: Dual Band Power Amplifier
Company: Intersil Corporation
Datasheet: Download ISL3990 datasheet File size : 262 kB
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Datasheet text preview:
®
ISL3990
D a t a Sheet M a r c h 2003 FN8048.1
Dual Band Power Amplifier
The ISL3990 is a Dual Band monolithic GaAs Power Amplifier designed to operate in both the ISM and U-NII Bands. It features two low voltage single supply stages which cascaded deliver 21dBm (Typ) output power for ISM, and three stages which deliver 16 dBm (Typ) for U-NII OFDM applications. In addition, the device includes a Dual Band detector which is accurate over a 15dB dynamic range within (±)1dB, which can be used to implement an accurate ALC function. The ISL3990 is housed in a 24 lead QFN package.
Features
· Single Supply . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 3.6V · Output Power . . . . . . . . . . . . . . . . . . . . . . . . 21dBm (Typ) · Power Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 28dB (Typ) · Detector Linear Input Power Range . . . . . . . . . . . . . . 15dB · Detector Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1dB
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
Ordering Information
PART NUMBER ISL3990IR ISL3990IR-TK TEMP RANGE (oC) -40 to 85 -40 to 85 PACKAGE 24 Ld. QFN PKG. NO. L24.4x4
Applications
· Systems Targeting IEEE802.11a/b/g WLANs · Wireless Local Area Networks (WLAN) · PCMCIA Wireless Transceivers · ISM Systems Including Automatic Level Control (ALC) · TDMA Packet Protocol Radios
Tape and Reel (1000 units)
Simplified Block Diagram
+3.3V 2 GHZ_RF_IN 2GHZ_BIAS 2GHZ_DET_OUT PEAK DETECTOR 5GHZ_RF_IN 5GHZ_BIAS 5GHZ_DET_OUT PEAK DETECTOR 5GHZ_RF_OUT BIAS BIAS 2GHZ_RF_OUT
Pinout
ISL3990 (QFN) TOP VIEW
2GHZ_DET_OUT 5GHZ_ RF_ OUT 5GHZ_ RF_ OUT
GND
G ND
18 17 16 15 5GHZ_DET_OUT 19 +3.3V 20 +3.3V 21 GND 22 5GHZ_RF_IN 23 GND 2 4 1 G ND 2 5GHZ_BI AS 3 2GHZ BIAS 4 G ND
14 1 3 12 GND 11 2GHZ_RF_OUT 10 2GHZ_RF_OUT 9 8 7 5 2GHZ_RF_IN 6 G ND GND +3.3V +3.3V
1
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. PRISM and design is a trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2003. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
GND
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