آر اف (فرکانس رادیویی) و بی‌سیم فرانت‌اند آر‌اف (ال‌ان‌ای و پی‌ای)

Product Attributes

Introduction

The ADRF5519 is a dual-channel, integrated RF, front-end multichip module designed for time division duplexing (TDD) applications that operates from 2.3 GHz to 2.8 GHz. The ADRF5519 is configured in dual channels with a cascading twostage low noise amplifier (LNA) and a high power silicon singlepole, double-throw (SPDT) switch.

In high gain mode, the cascaded two-stage LNA and switch offer a low noise figure (NF) of 1.0 dB and a high gain of 35 dB at 2.6 GHz with an output third-order intercept point (OIP3) of 32 dBm (typical). In low gain mode, one stage of the two-stage LNA is in bypass, providing 14 dB of gain at a lower current of 36 mA. In power-down mode, the LNAs are turned off and the device draws 12 mA.

In transmit operation, RF inputs are connected to a termination pin (ANT-CHA or ANT-CHB connected to TERM-CHA or TERM-CHB, respectively). The switch provides a low insertion loss of 0.5 dB and handles a long-term evolution (LTE) average power (9 dB peak to average ratio (PAR)) of 43 dBm for full lifetime operation.

The device comes in a RoHS-compliant, compact, 6 mm × 6 mm, 40-lead LFCSP package.

Features

• Integrated dual-channel RF front end
• 2-stage LNA and high power silicon SPDT switch
• On-chip bias and matching
• Single-supply operation
• High power handling at case temperature (T_CASE) = 105 ℃
• LTE average power (9 dB PAR) full lifetime: 43 dBm
• Gain
  • High gain mode: 35 dB typical at 2.6 GHz
  • Low gain mode: 14 dB typical at 2.6 GHz
• Low noise figure
  • High gain mode: 1.0 dB typical at 2.6 GHz
  • Low gain mode: 1.0 dB typical at 2.6 GHz
• High isolation
  • RXOUT-CHA and RXOUT-CHB: 45 dB typical
  • TERM-CHA and TERM-CHB: 60 dB typical
• Low insertion loss: 0.5 dB typical at 2.6 GHz
• High OIP3: 32 dBm typical
• Power-down mode and low gain mode
• Low supply current
  • High gain mode: 110 mA typical at 5 V
  • Low gain mode: 36 mA typical at 5 V
  • Power-down mode: 12 mA typical at 5 V
• Positive logic control
• 6 mm x 6 mm, 40-lead LFCSP package
• Pin compatible with the ADRF5545A and ADRF5549 10 W versions

Applications

• Wireless infrastructure
• TDD massive multiple input and multiple output and active antenna systems
• TDD-based communication systems