Telecoms, Datacoms, Wireless, IoT


ZIF tuner for UHF-band MMDS systems

2 April 2008 Telecoms, Datacoms, Wireless, IoT

Maxim has introduced the MAX2117 zero-IF (ZIF) tuner for UHF-band MMDS applications. This device receives QPSK signals in the 470 MHz to 1000 MHz range and down-converts them to baseband for demodulation. A low 8 dB noise figure, combined with a better than 25 dB adjacent-channel protection ratio (ACPR), makes this device well suited to MMDS applications. It operates from a single, 3,3 V ±5% supply and consumes only 330 mW. Though it has been designed to operate with a low-cost 4 MHz crystal, an internal reference divider allows the user to select any crystal in the 4 MHz to 8 MHz range. Fully specified over the 0°C to +70°C commercial temperature range, the MAX2117 is available in a 5 x 5 mm, 28-pin TQFN package.

CST Electronics, +27 (0)11 608 0070, +27 (0)11 608 0070, ecampling@cstelectronics.co.za, www.cstelectronics.co.za



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