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RF2461_1 Datasheet

  • RF2461_1

  • CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER

  • 14頁

  • RFMD

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RF2461
CDMA/FM LOW NOISE AMPLIFIER/MIXER
900MHz DOWNCONVERTER
RoHS Compliant & Pb-Free Product
Package: QFN, 20-Pin, 4x4
Features
Complete Receiver Front-End
Stepped LNA/Mixer Gain Con-
trol
Adjustable LNA/Mixer Bias
Current
Adjustable LNA/Mixer IIP3
Meets IMD Tests with Three
Gain States/Two Logic Con-
trol Lines
ENABLE
IP SET
IF SEL
VCC2
16
LO IN
17
20
19
18
LNA GAIN
1
15
IF2+
MIX GAIN
2
14
IF2-
LNA IN
3
13
BYPASS
Applications
CDMA/FM (AMPS) Systems
Dual-Mode TACS/JCDMA Sys-
tems
General Purpose Downcon-
verter
Commercial and Consumer
Systems
Portable Battery-Powered
Equipment
VCC1
4
12
IF1+
GND1B
5
11
IF1-
6
LNA OUT
7
ISET2
8
ISET1
9
GND3B
10
MIX IN
Functional Block Diagram
Product Description
The RF2461 is a receiver front-end designed for the receive section of dual-mode
CDMA/FM cellular applications. It is designed to amplify and downconvert RF sig-
nals, while providing 30dB of stepped gain control range. Features include digital
control of LNA gain, mixer gain, and power down mode. Another feature of the chip
is adjustable IIP3 of the LNA and mixer using an off-chip current setting resistor.
Noise figure, IP3, and gain are designed to be compatible with the IS-98B interim
standard for CDMA cellular communications. The IC is manufactured on an
advanced Silicon Germanium Bi-CMOS process and is assembled in a 4mmx4mm,
20-pin, QFN package.
Ordering Information
RF2461CDMA/FM Low Noise Amplifier/Mixer 900MHz Downconverter
RF2461PCBA-41X
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 B6 DS060925
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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