ADRF5547 RF Front-End Multichip Modules

Analog Devices Inc. ADRF5547 Dual-Channel RF Front-End Multichip Modules are designed for time-division duplexing (TDD) applications that operate from 3.7GHz to 5.3GHz. The series is configured in dual channels with a cascading two-stage low noise amplifier (LNA) and a high-power silicon single-pole, double-throw (SPDT) switch. In high gain mode, the cascaded two-stage LNA and switch provide a low noise figure (NF) of 1.6dB and a high gain of 33dB at 4.6GHz with an output third-order intercept point (OIP3) of 31dBm. In low gain mode, one stage of the two-stage LNA is in bypass, offering 18dB of gain at 36mA. In power-down mode, the LNAs are turned off, and the modules draw 12mA. In transmit operation, when RF inputs are connected to a termination pin (TERM-ChA or TERM-ChB), the switch has a low 0.5dB insertion loss. Analog Devices Inc. ADRF5547 modules are available in a 6mm x 6mm, 40-lead LFCSP package.