Analog Devices ADRF5545A RF now at Mouser

Analog Devices ADRF5545A RF now at Mouser

For Massive MIMO Designs
By eeNews Europe


The dual-channel, integrated radio frequency (RF) receiver front-end module is designed for time division duplexing (TDD) and massive multiple-input and multiple-output (mMIMO) applications that operate in the 2.4 GHz – 4.2 GHz frequency range.

The ADRF5545A, is configured in dual channels with a cascading two-stage gallium arsenide (GaAs) low noise amplifier (LNA) and a high-power silicon single-pole, double-throw (SPDT) switch. The device features single supply operation and interface for CMOS control signals, simplifying inclusion in multi-channel hardware designs with repeatable performance over the complete system.

In high gain mode, the cascaded two-stage LNA and switch offer a low noise figure (NF) of 1.45dB and a high gain of 32dB at 3.6GHz with an output third-order intercept point (OIP3) of 32dBm (typical). In low gain mode, one stage of the two-stage LNA is in bypass, providing 16dB of gain at a lower current of 36mA. In power-down mode, the LNAs are turned off and the device draws 12mA.

In transmit operation, when RF inputs are connected to a termination pin (TERM-ChA or TERM-ChB), the switch provides a low insertion loss of 0.65dB. The device handles long-term evolution (LTE) average power (9dB peak to average ratio (PAR)) of 40dBm for full lifetime operation and 43dBm for single event (<10 sec) LNA protection operation.

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