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
  • 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

Block Diagram - Analog Devices Inc. ADRF5547 RF Front-End Multichip Modules
Inilathala: 2019-10-09 | Na-update: 2024-03-11