1
®
FN8055.1
ISL3980
Power Amplifier
The ISL3980 is a monolithic GaAs
Power Amplifier designed to operate in
the ISM band. It features two low
voltage single supply stages which cascaded deliver 21dBm
(Typ) output power.
In addition, the device includes an integrated power detector
which is accurate over a 15dB dynamic range within (
±
)1dB,
which can be used to implement an accurate ALC function.
The ISL3980 is housed in a 24 lead QFN package.
Simplified Block Diagram
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
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
Pinout
ISL3980 (QFN)
TOP VIEW
Ordering Information
PART NUMBER
TEMP
RANGE (
o
C)
PACKAGE
PKG. NO.
ISL3980IR
-40 to 85
24 Ld. QFN
L24.4x4
ISL3980IR-TK
-40 to 85
Tape and Reel (1000 units)
BIAS
PEAK DETECTOR
2GHZ_DET_OUT
2GHZ_RF_OUT
2 GHZ_RF_IN
+3.3V
2GHZ_BIAS
9
10
11
12
GND
2GHZ_RF_OUT
2GHZ_RF_OUT
GND
7
8
+3.3V
+3.3V
1
2
3
4
15
16
17
18
21
22
23
24
GND
NC
GND
2GHZ
BIA
S
NC
NC
GND
+3.3V
GND
NC
GND
GND
5
6
2G
HZ_RF_IN
GND
13
14
2G
H
Z
_DE
T
_OUT
GND
19
20
+3.3V
NC
Data Sheet
March 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.
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.
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