RF2498PCBA-41X View Datasheet(PDF) - RF Micro Devices
Part Name
Description
MFG CO.
'RF2498PCBA-41X' PDF : 22 Pages View PDF
RF2498Tri-
Band/Quad-
Mode
CDMA/GPS
Low Noise
Ampli-
fier/Mixer
RF2498
TRI-BAND/QUAD-MODE CDMA/GPS
LOW NOISE AMPLIFIER/MIXER
Package Style: QFN, 32-Pin, 5x5
Features
GPS Receive Front-End
Gain = 37 dB
Meets IMD Tests with Three
Gain States/Two Logic Con-
trol Lines
Adjustable Mixer and LNA
Bias Current
Selectable Divide-by-2 Pres-
caler
Integrated TX LO Buffer Ampli-
fier
32
31
30
29
28
27
26
25
GPS+ 1
24 GPS LNA IN
GPS- 2
23 PCS LNA IN
CDMA+ 3
22 IP SET
CDMA- 4
21 PCS LNA OUT
FM+ 5
20 CELL LNA IN
FM- 6
19 CELL LNA EMITTER
VCC2 7
18 CELL LNA OUT
LO IN 8
9
17 LNA GAIN
10
11
12
13
14
15
16
Applications
CDMA/Cellular/PCS/GPS
Handsets
JCDMA/GPS Handsets
CDMA Modem/Data Cards
Commercial and Consumer
Systems
Portable Battery-Powered
Equipment
Functional Block Diagram
Product Description
The RF2498 is a high performance CDMA tri-band/quad-mode integrated
LNA/mixer with GPS capability. The device is designed to meet all IS-98
sensitivity, intermodulation and single-tone requirements. The RF2498
integrates the tri-band LNA/downconverters with 27.5dB of gain control
for the cellular band and 29dB for the PCS band. The RF2498 is designed
for three state gain control solutions for IS-98 IMD testing. The device
offers a dedicated GPS LNA/mixer with 37dB of gain. Additionally, a
divide-by-2 prescaler to allow the use of either a single- or dual-band VCO
is integrated. There is also a TX LO buffer. The design is flexible, in that the
bias currents may be set using off-chip current reference resistors for the
mixer and LNA blocks. The device is packaged in a plastic, 5mmx5mm,
leadless chip carrier.
Ordering Information
RF2498
Tri-Band/Quad-Mode CDMA/GPS Low Noise Amplifier/Mixer
RF2498PCBA-41X Fully Assembled Evaluation Board
Optimum Technology Matching® Applied
GaAs HBT
9SiGe BiCMOS
GaAs pHEMT
GaN HEMT
GaAs MESFET
Si BiCMOS
Si CMOS
InGaP HBT
SiGe HBT
Si BJT
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ 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. ©2006, RF Micro Devices, Inc.
Rev A3 DS030711
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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