AD8344

www.DataSheet4U.com Preliminary Technical Data FEATURES Broadband RF Port: 400 MHz – 1.2 GHz Conversion Gain: 4 dB Noise Figure: 11 dB Input IP3: +24 dBm Input P1dB: +8 dBm LO Drive: 0 dBm External Control of Mixer Bias for Low Power Operation Single-ended, 50Ω RF and LO Input Ports Single Supply Operation: 5 V @ 90 mA Power Down Mode Exposed Paddle Chip Scale Package: 3 x 3 mm Active Receive Mixer 400 MHz – 1.2 GHz AD8344 VPDC PWDN EXRB 12 11 BIAS 10 COMM 9 COMM 13 8 COMM RFCM 14 7 IFOP RFIN 15 6 IFOM APPLICATIONS Cellular Base Station Receivers ISM Receivers Radio Links RF Instrumentation VPMX 16 5 COMM 1 2 3 LOIN 4 COMM VPLO LOCM GENERAL DESCRIPTION The AD8344 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 AD8344 provides a typical conversion gain of 3dB at 900MHz. The integrated LO driver supports a 50-Ω input impedance with a low LO drive level, helping to minimize external component count. The single-ended 50-Ohm broadband RF port allows for easy interfacing to both active devices and passive filters. The RF input accepts input signals as large as 1.8Vpp or 9dBm (re: 50 Ω) 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 or AD8351. These outputs may also be converted to a single-ended...