Analog Devices Inc. ADRF5545A RF Front-End Multichip Module
Analog Devices ADRF5545A Dual-Channel RF Front-End Multichip Module is designed for time-division duplexing (TDD) applications that operate from 2.4GHz to 4.2GHz. The ADRF5545A 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 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
Features
- Integrated dual-channel RF front end
- 2-stage LNA and high power SPDT switch
- On-chip bias and matching
- Single supply operation
- Gain
- High gain mode: 32dB typical at 3.6GHz
- Low gain mode: 16dB typical at 3.6GHz
- Low noise figure
- High gain mode: 1.45dB typical at 3.6GHz
- Low gain mode: 1.45dB typical at 3.6GHz
- High isolation
- RXOUT-CHA and RXOUT-CHB: 47dB typical
- TERM-CHA and TERM-CHB: 52dB typical
- Low insertion loss: 0.65dB typical at 3.6GHz
- High power handling at TCASE = 105°C
- Full lifetime
- LTE average power (9dB PAR): 40dBm
- A single event (< 10-sec operation)
- LTE average power (9dB PAR): 43dBm
- Full lifetime
- High OIP3: 32dBm typical
- Power-down mode and low gain mode for LNA
- Low supply current
- High gain mode: 86mA typical at 5V
- Low gain mode: 36mA typical at 5V
- Power-down mode: 12mA typical at 5V
- Positive logic control
- 6mm×6mm, 40-lead LFCSP package
Applications
- Wireless infrastructure
- TDD massive multiple input and multiple output and active antenna systems
- TDD-based communication systems
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Development Tools
Analog Devices Inc. Placa de evaluación ADRF5545A-EVALZ
Diseñada para ayudar a evaluar las funciones y el rendimiento del módulo frontal de RF integrado.
Associated Products
Analog Devices Inc. ADRF5515 Receiver Front-End
A dual-ch, integrated RF, front-end, multichip module designed for TDD applications.
Functional Block Diagram
