Analog Devices Inc. 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.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: 33dB typical at 4.6GHz
- Low gain mode: 18dB typical at 4.6GHz
- Low noise figure
- High gain mode: 1.6dB typical at 4.6GHz
- Low gain mode: 1.6dB typical at 4.6GHz
- High isolation
- RxOut-ChA and RxOut-ChB: 45dB typical
- TERM-ChA and TERM-ChB: 53dB typical
- Low 0.5dB typical insertion loss at 4.6GHz
- High power handling at TCASE = +105°C
- Full lifetime
- LTE average power (9dB PAR): 40dBm
- Single event (<10s operation)
- LTE average power (9dB PAR): 43dBm
- Full lifetime
- High 31dBm OIP3 (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 x 6mm, 40-lead LFCSP package
Applications
- Wireless infrastructure
- TDD massive MIMO and active antenna systems
- TDD-based communication systems
Functional Block Diagram
Inilathala: 2019-10-09
| Na-update: 2024-03-11
