Overview
The HMC544ATR is a low-cost Single-Pole Double-Throw (SPDT) switch designed by Analog Devices Inc. This device is part of the HMC544A series and is optimized for transmit/receive applications requiring very low insertion loss at medium power levels. The HMC544ATR is fabricated using GaAs PHEMT technology, which provides exceptional linearity and performance characteristics. It is packaged in a compact 6-lead SOT-23 package, making it suitable for a variety of RF and microwave applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Frequency Range | DC - 4.0 GHz | |
| Insertion Loss | 0.2 dB @ 1 GHz | |
| Input P1dB | +39 dBm | |
| Input IP3 | +60 dBm | |
| Control Voltage Range | 0/+3V to 0/+5V | |
| Switching Time (tRISE, tFALL) | 30 ns (10/90% RF) | |
| Switching Time (tON, tOFF) | 50 ns (50% CTL to 10/90% RF) | |
| Package Type | 6-lead SOT-23 | |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Very low insertion loss: 0.2 dB @ 1 GHz
- High input P1dB: +39 dBm
- High input IP3: +60 dBm
- Positive control operation: 0/+3V to 0/+5V
- Compact SOT-23 SMT package
- Low DC current consumption
- RF1 and RF2 are reflective opens when “Off”
Applications
- Cellular/PCS/3G Infrastructure
- Basestations & Repeaters
- WLAN, WiMAX, and WiBro
- Microwave and Fixed Wireless Radios
Q & A
- What is the frequency range of the HMC544ATR?
The HMC544ATR operates from DC to 4.0 GHz.
- What is the typical insertion loss of the HMC544ATR at 1 GHz?
The typical insertion loss is 0.2 dB at 1 GHz.
- What are the input P1dB and IP3 values of the HMC544ATR?
The input P1dB is +39 dBm, and the input IP3 is +60 dBm.
- What is the control voltage range for the HMC544ATR?
The control voltage range is 0/+3V to 0/+5V.
- What is the switching time of the HMC544ATR?
The switching time (tRISE, tFALL) is 30 ns, and (tON, tOFF) is 50 ns.
- What type of package does the HMC544ATR come in?
The HMC544ATR is packaged in a 6-lead SOT-23 package.
- What is the operating temperature range of the HMC544ATR?
The operating temperature range is -40°C to 85°C.
- What are some typical applications of the HMC544ATR?
Typical applications include cellular/PCS/3G infrastructure, basestations & repeaters, WLAN, WiMAX, and WiBro, as well as microwave and fixed wireless radios.
- How does the HMC544ATR handle RF ports when in the “Off” state?
RF1 and RF2 are reflective opens when the switch is in the “Off” state.
- What technology is used in the fabrication of the HMC544ATR?
The HMC544ATR is fabricated using GaAs PHEMT technology.
