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AD8343 Datasheet

  • AD8343

  • DC-to-2.5 GHz High IP3 Active Mixer

  • 713.58KB

  • 29页

  • AD

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a
FEATURES
High-Performance Active Mixer
Broadband Operation to 2.5 GHz
Conversion Gain: 7.1 dB
Input IP3: 16.5 dBm
LO Drive: 鈥?0 dBm
Noise Figure: 14.1 dB
Input P1 dB: 2.8 dBm
Differential LO, IF and RF Ports
50 LO Input Impedance
Single-Supply Operation: 5 V @ 50 mA Typical
Power-Down Mode @ 20 A Typical
APPLICATIONS
Cellular Base Stations
Wireless LAN
Satellite Converters
SONET/SDH Radio
Radio Links
RF Instrumentation
PRODUCT DESCRIPTION
DC-to-2.5 GHz
High IP3 Active Mixer
AD8343
FUNCTIONAL BLOCK DIAGRAM
AD8343
1
2
3
4
5
BIAS
6
7
14
13
12
11
10
9
8
COMM
INPP
INPM
DCPL
VPOS
PWDN
COMM
COMM
OUTP
OUTM
COMM
LOIP
LOIM
COMM
The AD8343 is a high-performance broadband active mixer.
Having wide bandwidth on all ports and very low intermodulation
distortion, the AD8343 is well suited for demanding transmit or
receive channel applications.
The AD8343 provides a typical conversion gain of 7.1 dB. The
integrated LO driver supports a 50
鈩?/div>
differential input imped-
ance with low LO drive level, helping to minimize external
component count.
The open-emitter differential inputs may be interfaced directly
to a differential filter or driven through a balun (transformer) to
provide a balanced drive from a single-ended source.
The open-collector differential outputs may be used to drive a
differential IF signal interface or converted to a single-ended
signal through the use of a matching network or transformer.
When centered on the VPOS supply voltage, the outputs may
swing
卤
1 V.
The LO driver circuitry typically consumes 15 mA of current.
Two external resistors are used to set the mixer core current for
required performance resulting in a total current of 20 mA to
60 mA. This corresponds to power consumption of 100 mW to
300 mW with a single 5 V supply.
The AD8343 is fabricated on Analog Devices鈥?proprietary, high-
performance 25 GHz silicon bipolar IC process. The AD8343 is
available in a 14-lead TSSOP package. It operates over a 鈥?0掳C
to +85掳C temperature range. A device-populated evaluation
board is available to facilitate device matching.
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
漏 Analog Devices, Inc., 2000

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