AD8342| Datasheet

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Active Receive Mixer LF to 2.4 GHz AD8342
FEATURES
Broadband RF, LO, and IF ports Conversion gain: 3.7 dB Noise figure: 12.2 dB Input IP3: 22.7 dBm Input P1dB: 8.3 dBm LO drive: 0 dBm Differential high impedance RF input port Single-ended, 50 LO input port Open-collector IF output port Single-supply operation: 5 V @ 98 mA Power-down mode Exposed paddle LFCSP: 3 mm 3 mm

FUNCTIONAL BLOCK DIAGRAM
VPDC PWDN EXRB COMM

12
COMM 13 RFCM 14 RFIN 15 VPMX 16

11
BIAS

9
8 7 6 5 COMM IFOP IFOM COMM
05352-001

AD8342

1
VPLO

2
LOCM

3
LOIN

4
COMM

Figure 1.

APPLICATIONS
Cellular base station receivers ISM receivers Radio links RF instrumentation

GENERAL DESCRIPTION
The AD8342 is a high performance, broadband active mixer. It is well suited for demanding receive-channel applications that require wide bandwidth on all ports and very low intermodulation distortion and noise figure. The AD8342 provides a typical conversion gain of 3.7 dB with an RF frequency of 238 MHz. The integrated LO driver presents a 50 input impedance with a low LO drive level, helping to minimize the external component count. The differential high impedance broadband RF port allows for easy interfacing to both active devices and passive filters. The RF input accepts input signals as large as 1.6 V p-p or 8 dBm (relative to 50 ) at P1dB. The open-collector differential outputs provide excellent balance and can be used with a differential filter or IF amplifier, such as the AD8369, AD8370, AD8351, or AD8352. These outputs can also be converted to a single-ended signal using a matching network or a balun transformer. The outputs are capable of swinging 2 V p-p when biased to the VPOS supply rail. The
AD8342 is fabricated on an Analog Devices, Inc., proprietary, high performance SiGe IC process. The AD8342 is available in a 16-lead LFCSP. It operates over a -40 C to +85 C temperature range. An evaluation board is also available.

Rev. A
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