ISL3984 Datasheet, PDF (1/7 Pages) Intersil Corporation – 2.4GHz Power Amplifier and Detector

TM
PRELIMINARY
Data Sheet
ISL3984
December 2000 File Number 4862.4
[ /Title
(ISL39
84)
/Sub-
ject
(2.4G
Hz
Power
Ampli-
fier
and
Detec-
tor)
/Autho
r ()
/Key-
words
(Inter-
sil
Corpo-
ration,
semi-
con-
ductor,
Wire-
less
Com-
muni-
cations
, RF,
Radio
Fre-
quency
, IF,
Inter-
medi-
ate
Fre-
2.4GHz Power Amplifier and Detector
The ISL3984 is a 2.4GHz monolithic
SiGe Power Amplifier designed to
operate in the ISM Band. It features
two low voltage single supply stages.
Cascaded, they deliver 18dBm (Typ) output power for the
typical DSSS signal (ACPR, 1st Side Lobe < -30dBc, 2nd
Side Lobe < -50dBc).
In addition, the device includes a 2.4GHz detector which is
accurate over a 15dB dynamic range within (±)1dB.
Therefore, an accurate ALC function can be implemented.
The ISL3984 is housed in a 16 lead MLFP package well
suited for PCMCIA board applications.
Ordering Information
TEMP
PART NUMBER RANGE (^oC)
PACKAGE
PKG. NO.
ISL3984IR
-40 to 85 16 Ld MLFP L16.4x4
ISL3984IR96
-40 to 85 Tape and Reel
Simplified Block Diagram
DS_VCC
RF_IN
PEAK DETECTOR
RF_OUT
BIAS
LOG
PE REXT DET_OUT
Features
• Single Supply . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 3.6V
• Output Power . . . . . . . . . . . 18dBm (Typ) at ACPR, DSSS,
1st Side Lobe < -30dBc, 2nd Side Lobe < -50dBc
• Power Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30dB (Typ)
• Detector Linear Input Power Range . . . . . . . . . . . . . .15dB
• Detector Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±1dB
Applications
• IEEE802.11 1, 2 or 5.5Mbps Standard
• Systems Targeting IEEE802.11b, 11Mbps Standard
• Wireless Local Area Networks (WLAN)
• PCMCIA Wireless Transceivers
• ISM Systems Including Automatic Level Control (ALC)
• TDMA Packet Protocol Radios
Pinouts
ISL3984 (MLFP)
TOP VIEW
12 11 10 9
DET_OUT 13
VCC_DET 14 PACKAGE PINOUT
PE 15 SUBJECT TO CHANGE
BIAS_GND 16
8 GND
7 GND
6 RF_OUT
5 GND
1234
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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