Analog Devices Inc. 115203-HMC546LP2

Overview

115203-HMC546LP2 from Analog Devices is a 2600 MHz-tuned evaluation board for the HMC546LP2E GaAs SPDT RF switch, enabling LNA protection and T/R switching in high-power cellular infrastructure. It supports 10 W RF handling, delivers 0.5–0.8 dB Tx-to-RFC insertion loss and ≥30 dB RFC-to-Rx isolation at 2500–2700 MHz, and implements failsafe operation with external matching components for narrowband deployment.

For engineers reviewing the 115203-HMC546LP2 datasheet, 115203-HMC546LP2 application, 115203-HMC546LP2 pinout, or 115203-HMC546LP2 equivalent, this board provides validated RF layout, thermal grounding via exposed paddle, and component values optimized for 2600 MHz tuning-critical for WiMAX repeaters, automotive telematics, and TD-SCDMA base stations requiring stable high-linearity switching.

Technical Context

The 115203-HMC546LP2 is a dedicated evaluation PCB for the HMC546LP2E SPDT switch, configured specifically for 2600 MHz band operation. It integrates discrete matching components-including 0.7 pF C2, 1.5 pF C7, 1.6 nH L1 (0603), and 2.7 nH L2 (0402)-to achieve optimal P0.1dB (≥38.5 dBm) and IP3 (≥62 dBm) performance on the Tx path.

Designed for Rogers 4350 substrate, the board enforces 50 Ω controlled impedance routing and direct RF ground connection to the HMC546LP2E's exposed paddle. Its layout accommodates failsafe topology (RFC→Tx path active at VCTL = 0 V) and supports +3 V to +8 V positive control voltage without external level shifting.

Key Specifications

Availability

115203-HMC546LP2 is available at Aetrix Electronics and suitable for WiMAX repeater development, automotive telematics RF front-end validation, and 2600 MHz TD-SCDMA infrastructure prototyping requiring stable component supply and repeatable RF performance.

Supply support for 115203-HMC546LP2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and RF ICs, headquartered in Norwood, MA, with deep expertise in signal chain and power management solutions.

The 115203-HMC546LP2 belongs to Analog Devices' Hittite Microwave product line, engineered specifically to accelerate RF switch evaluation in cellular, public safety, and broadband wireless infrastructure applications.

FAQ

What is the primary function of the 115203-HMC546LP2 evaluation board?

The 115203-HMC546LP2 evaluation board is a fully assembled, tuned PCB designed exclusively for characterizing the HMC546LP2E GaAs SPDT RF switch at 2600 MHz. It provides validated RF layout, thermal grounding, and pre-selected matching components (C2 = 0.7 pF, C7 = 1.5 pF, L1 = 1.6 nH, L2 = 2.7 nH) to enable rapid prototyping of high-power T/R switching and LNA protection circuits without custom RF design effort. The 115203-HMC546LP2 supports failsafe operation and operates across the full 2500–2700 MHz band.

Does the 115203-HMC546LP2 include the HMC546LP2E IC?

Yes, the 115203-HMC546LP2 includes one mounted HMC546LP2E SPDT RF switch in a 6-lead LFCSP package (2 mm × 2 mm, CP-6-10). The IC is soldered to the Rogers 4350 PCB with its exposed thermal paddle connected to the ground plane per datasheet requirements. No additional assembly or IC sourcing is required to begin RF evaluation of the 115203-HMC546LP2.

What RF performance can be expected from the 115203-HMC546LP2 at 2600 MHz?

At 2600 MHz, the 115203-HMC546LP2 delivers 0.5–0.8 dB Tx-to-RFC insertion loss, ≥30 dB RFC-to-Rx isolation, and ≥20 dB return loss on both paths, as verified in Figures 20–24 of the HMC546LP2E datasheet Rev. E. The board sustains ≥38.5 dBm P0.1dB and ≥62 dBm IP3 on the Tx path under 3–8 V control, meeting requirements for 10 W infrastructure transceivers. The 115203-HMC546LP2 achieves these metrics using its optimized 2600 MHz matching network and controlled-impedance layout.

Can the 115203-HMC546LP2 be used outside the 2600 MHz band?

The 115203-HMC546LP2 is specifically tuned for 2600 MHz (2500–2700 MHz) operation and is not optimized for other bands. While the HMC546LP2E IC itself supports 200–2700 MHz, the board's fixed matching components (e.g., C2 = 0.7 pF, L1 = 1.6 nH) limit usable bandwidth. For 1843 MHz, 2015 MHz, or 2350 MHz evaluation, Analog Devices offers dedicated boards: 110782-HMC546LP2, 115201-HMC546LP2, and 115202-HMC546LP2 respectively. Using the 115203-HMC546LP2 outside its target band degrades insertion loss, isolation, and linearity.

How is thermal management implemented on the 115203-HMC546LP2?

The 115203-HMC546LP2 implements thermal management by soldering the HMC546LP2E's exposed metal paddle directly to the PCB's internal and external ground planes, as shown in Figure 26 of the datasheet. This low-thermal-resistance path (θ_JC = 54°C/W for Tx port) enables reliable operation at 10 W RF input power. The Rogers 4350 substrate further enhances heat spreading versus FR-4. No heatsink or forced air is required for continuous operation within the HMC546LP2E's absolute maximum ratings. The 115203-HMC546LP2 maintains junction temperature below 150°C under typical 2600 MHz test conditions.