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RF2861_1 Datasheet

  • RF2861_1

  • CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER

  • 16頁

  • RFMD

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RF2861CDMA
Low Noise
Ampli-
fier/Mixer
900MHz
Downcon-
verter
RF2861
CDMA LOW NOISE AMPLIFIER/MIXER
900MHz DOWNCONVERTER
RoHS Compliant & Pb-Free Product
Package Style: QFN, 16-Pin, 3x3
ENABLE
TX BUFF
ENABLE
LO OUT
14
Features
3mmx3mm LNA/Mixer Solu-
tion
Adjustable LNA and Mixer
Current/IIP3
Meets IMD Tests with Three
Gain States/Two Logic Con-
trol Pins
Integrated TX LO Buffer Ampli-
fier
Full ESD Protection on all Pins
G2 1
LNA IN 2
LNA EMITTER 3
LNA OUT 4
16
15
VCC
13
12 LO IN
11 GND
10 IF OUT-
9 IF OUT+
8
MIX IN
5
ISET2
6
ISET1
7
G1
Applications
CDMA/JCDMA Cellular Sys-
tems
CDMA450 Handsets/Data
Cards
AMPS Cellular Systems
General Purpose LNA and
Downconverter
Commercial and Consumer
Systems
Portable Battery-Powered
Equipment
Functional Block Diagram
Product Description
The RF2861 is a receiver front-end for CDMA cellular applications, includ-
ing JCDMA and CDMA450. It is designed to amplify and downconvert RF
signals, using a three gain state LNA to obtain 17dB of stepped gain con-
trol. Features include digital control of LNA gain and power down mode,
along with an integrated TX LO buffer amplifier. Another feature of the chip
is adjustable IIP3 of the LNA and mixer using off-chip current setting resis-
tors to allow for minimum DC current consumption. Noise figure, IIP3, and
other specs are designed to be compatible with the TIA/EIA 98D standard
for CDMA cellular communications. The IC is manufactured on an
advanced Silicon Germanium Bi-CMOS process and is in a 3mmx3mm,
16-pin, QFN.
Ordering Information
RF2861
RF2861PCBA-41X
CDMA Low Noise Amplifier/Mixer 900MHz Downconverter
Fully Assembled Evaluation Board
Optimum Technology Matching廬 Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
RF MICRO DEVICES廬, RFMD廬, Optimum Technology Matching廬, Enabling Wireless Connectivity鈩? PowerStar廬, POLARIS鈩?TOTAL RADIO鈩?and UltimateBlue鈩?are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. 漏2006, RF Micro Devices, Inc.
Rev A3 DS050902
7628 Thorndike Road, Greensboro, NC 27409-9421 路 For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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