Datasheet

MAX2091
50MHz to 500MHz Analog VGA, 1735MHz to 1935MHz
Upconverting Mixer with Image Filtering, Threshold
Alarm Circuit, and Error Amplifier for Level Control
1
General Description
The MAX2091 monolithic SiGe BiCMOS upconverter IC
integrates an analog variable-gain amplifier (VGA) with
an upconverting mixer stage and image filter. The device
amplifies IF signals in the 250MHz to 450MHz range
before mixing them with an LO signal. The resulting
1735MHz to 1935MHz upconverted signal is then filtered
on-chip as the final stage of signal conditioning. For a
broadband variant that does not include the image filter,
refer to the MAX2091B.
The analog attenuator is controlled by an external analog
control voltage. Device features include 23dB gain (no
attenuation), 5.4dB NF (no attenuation, including attenu-
ator insertion loss), and +24.5dBm OIP3. Each of these
features makes the MAX2091 an ideal upconverter for
numerous transmitter applications. When paired with the
MAX2092 RF VGA, a complete 2-chip IF-RF signal con-
ditioning solution is possible for microwave point-to-point
transmitter applications.
The MAX2091 operates from a single 5V supply, and is
available in a compact 20-pin TQFN package (5mm x
5mm) with an exposed pad. Electrical performance is
guaranteed over the extended temperature range from
T
C
= -40NC to +95NC.
Applications
Microwave Point-to-Point Transmitters
IF Variable-Gain Stages
Temperature Compensation Circuits
Cellular Applications
WiMAX
®
Applications
LTE Applications
Fixed Broadband Wireless Access
Wireless Local Loop
Military Systems
Benefits and Features
S Complete Upconversion in a Single IC

50MHz to 500MHz Analog VGA

1735MHz to 1935MHz Upconverter Mixer

On-Chip LO Buffer

Image Filter
S
High Linearity

+24.5dBm OIP3

+12dBm Output -1dB Compression Point
S 23dB Gain
S 37dB IF Attenuator Control Range
S 5.4dB Noise Figure (Includes Attenuator
Insertion Loss)
S 0.25dB Gain Variation Over 100MHz Bandwidth
S Analog Attenuator Controlled with External
Voltage
S
Alarm Circuit with Adjustable Threshold
S 20dB Image Rejection at 1135MHz RF Frequency
S Single +5V Supply with Extended +4.75V to +5.8V
Supply Range
S
Lead(Pb)-Free Package
S Power-Down Capabilities
19-6188; Rev 0; 7/12
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to www.maxim-ic.com/MAX2091.related.
WiMAX is a registered certification mark and registered service mark of WiMAX Forum.
EVALUATION KIT AVAILABLE
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.