Direct-conversion demodulator aims to reduce cost of next-gen base stations

Direct-conversion demodulator aims to reduce cost of next-gen base stations

The relentless drive to reduce the cost of next-generation base stations compels attention to direct-conversion architectures that offer a flexible approach to cover multiple RF standards and to simplify system design. The LT5575 direct conversion I/Q demodulator has extended operating frequency range from 800 MHz to 2.7 GHz with a single part and with the baluns on chip further supporting various microwave radio links and software-defined radios.

In addition, its very high P1dB performance of 13.2 dBm stands out as RFID readers’ demodulator of choice while its linearity performance makes it ideal for use as a digital predistortion receiver to linearize RF power amplifiers. Specifications include a noise figure of 12.7 dB at 1,900 MHz, a supply voltage of 5 V, a quiescent current of 132 mA, and an I/Q amplitude and phase mismatch of 12.7 dB and 0.6, respectively.

Linear Technology , Milpitas , CA
Information 408-432-1900
http://www.linear.com