MAX2335 Datasheet, PDF (1/11 Pages) Maxim Integrated Products – 450MHz CDMA/OFDM LNA/Mixer

19-0492; Rev 0; 10/05
EVAALVUAAILTAIOBNLEKIT
450MHz CDMA/OFDM LNA/Mixer
General Description
The MAX2335 RF front-end receiver IC is designed for
CDMA and OFDM applications in the 450MHz band.
The MAX2335 includes a low-noise amplifier (LNA) with
adjustable IIP3 to minimize desensitization due to cross-
modulation in the presence of a large interfering signal.
The mixer features differential IF outputs and is
designed for high linearity and low noise, which is well
suited for CDMA and OFDM applications.
An on-chip frequency divider is included to allow the
use of a standard 1GHz VCO. Alternatively, the divider
can be bypassed for use with a lower-frequency VCO.
The MAX2335 is available in a 28-pin TQFN package
with exposed paddle and is specified for the -40°C to
+85°C extended temperature range. The device is also
offered in a lead-free package.
Applications
450MHz-Band, WCDMA, IS-95, IS-2000, OFDM,
Wireless Data Links
Features
♦ 1.5dB LNA Noise Figure
♦ 16dB LNA Gain
♦ 2.1dB Cascaded Noise Figure
♦ Adjustable LNA IIP3
♦ LO Output Buffer for Transmitter
♦ LO Frequency Divider
♦ Small 5mm x 5mm, 28-Pin (Lead-Free) TQFN
Package
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
PKG
CODE
MAX2335ETI
-40°C to +85°C
28 Thin QFN-EP*
(5mm x 5mm)
T2855-3
MAX2335ETI+ -40°C to +85°C
*EP = Exposed paddle.
+Denotes lead-free package.
28 Thin QFN-EP*
(5mm x 5mm)
T2855+3
Pin Configuration/
Functional Diagram
TOP VIEW
21 20 19 18 17 16 15
MIXIN 22
14 N.C.
I.C. 23
N.C. 24
MAX2335
13 LO_OUT
12 I.C.
N.C. 25
11 N.C.
V_CC 26
N.C. 27
÷2
EP
10 LO_IN
9 LO/2
LNAOUT 28 ₊
8 N.C.
12 3 4 56 7
THIN QFN
5mm x 5mm
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