AD8343 Datasheet, PDF (1/27 Pages) Analog Devices – DC-to-2.5 GHz High IP3 Active Mixer

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FEATURES
High-Performance Active Mixer
Broadband Operation to 2.5 GHz
Conversion Gain: 7.1 dB
Input IP3: 16.5 dBm
LO Drive: –10 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
DC-to-2.5 GHz
High IP3 Active Mixer
AD8343
FUNCTIONAL BLOCK DIAGRAM
COMM 1
INPP 2
INPM 3
DCPL 4
VPOS 5
PWDN 6
COMM 7
AD8343
BIAS
14 COMM
13 OUTP
12 OUTM
11 COMM
10 LOIP
9 LOIM
8 COMM
PRODUCT DESCRIPTION
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 Ω 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 ± 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’ proprietary, high-
performance 25 GHz silicon bipolar IC process. The AD8343 is
available in a 14-lead TSSOP package. It operates over a –40°C
to +85°C temperature range. A device-populated evaluation
board is available to facilitate device matching.
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