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RF2489 Datasheet

  • RF2489

  • DUAL-BAND/TRI-MODE CDMA LOW NOISE AMPLIFIER/MIXER

  • 16頁

  • RFMD

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Preliminary
RF2489
DUAL-BAND/TRI-MODE CDMA
LOW NOISE AMPLIFIER/MIXER
8
Typical Applications
鈥?CDMA/Cellular/PCS Handsets
鈥?JCDMA/GPS Handsets
鈥?CDMA Modem/Data Cards
鈥?Commercial and Consumer Systems
鈥?Portable Battery-Powered Equipment
Product Description
The RF2489 is a high performance CDMA dual-band/tri-
mode integrated LNA/mixer. The device is designed to
meet all IS-98 sensitivity, intermodulation and single-tone
requirements. The operating voltage is 2.7V and is com-
patible with 1.8V logic for control lines. The RF2489 inte-
grates the dual-band LNA/downconverters with 30dB of
gain control and TX LO buffers. Additionally, a divide-by-2
prescaler to allow the use of a single-band VCO is inte-
grated. The design is flexible, in that the bias currents
may be set using off-chip current reference resistors for
both the LNA and mixer blocks. The device is packaged in
a 5mmx5mm leadless plastic package.
1.00
0.85
0.80
0.65
0.60
0.24 typ
5.00
sq.
0.23
0.13
4 PLCS
3 0.30
0.18
3.25
2.95 sq.
12擄
MAX
0.05
0.01
0.55
0.30
0.50
NOTES:
1 Shaded Pin is Lead 1.
0.45
0.20
4 PLCS
8
FRONT-ENDS
2 Pin 1 identifier must exist on top surface of package by identification
mark or feature on the package body. Exact shape and size is optional.
3 Dimension applies to plated terminal: to be measured between 0.02 mm
and 0.25 mm from terminal end.
4 Package Warpage: 0.05 mm max.
5 Die Thickness Allowable: 0.305 mm max.
Optimum Technology Matching廬 Applied
Si BJT
Si Bi-CMOS
IF SEL
Package Style: LCC, 32-Pin, 5x5
眉
SiGe HBT
CELL MIX IN
BAND SEL
IP SET
VCC1
32
31
30
29
28
GaAs HBT
GaAs MESFET
Si CMOS
ISET2
ISET1
Features
鈥?30dB of Stepped LNA/Mixer Gain Control
鈥?Adjustable Mixer & LNA Bias Current/IIP3
27
GND
26
25
24 CELL LNA OUT
FM+
1
FM-
2
23
CELL LNA EMITTER
鈥?A Divide-by-2 Prescaler
鈥?Meets IMD Tests with Three Gain States/
Two Logic Control Lines
鈥?Integrated TX LO Buffer Amplifiers
CDMA+
3
22
CELL LNA IN
CDMA-
4
/2
21 GND
/2 SELECT
5
20 PCS LNA IN
LO IN
6
19 GND
PCS LO OUT
7
18
VCC2
CELL LO OUT
8
9
VCC3
10
ENABLE
11
TX BUFF ENABLE
12
GND
13
PCS MIX IN
14
MIX GAIN
15
LNA GAIN
16
GND
17 PCS LNA OUT
Ordering Information
RF2489
RF2489
RF2489 PCBA
Dual-Band/Tri-Mode CDMA Low Noise Amplifier/Mixer
Dual-Band/Tri-Mode JCDMA/GPS Low Noise
Amplifier/Mixer
Fully Assembled Evaluation Board
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Rev A10 011017
8-33

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