Overview
The HMC347-SX is a high-performance RF Switch IC manufactured by Analog Devices Inc. This GaAs MESFET SPDT (Single-Pole Double-Throw) switch is designed for broadband applications, covering a frequency range from DC to 20 GHz. It is notable for its high isolation and low insertion loss, making it suitable for various high-frequency applications such as microwave radio, fiber optics, military, and VSAT (Very Small Aperture Terminal) systems. The switch operates using two negative control voltage logic lines of -5/0V and requires no Vee supply, with no current consumption. Its compact size and coplanar I/Os allow for 100% RF testing prior to delivery.
Key Specifications
| Parameter | Frequency Range | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Insertion Loss | DC - 20.0 GHz | 1.7 | 2.2 | dB | |
| Isolation | DC - 20.0 GHz | 40 | 45 | dB | |
| Return Loss On State | DC - 20.0 GHz | 10 | 13 | dB | |
| Return Loss RF1, RF2 On State | DC - 20.0 GHz | 8 | 10 | dB | |
| Input Power for 1 dB Compression | 0.5 - 20.0 GHz | 19 | 23 | dBm | |
| Input Third Order Intercept | 0.5 - 20.0 GHz | 38 | 43 | dBm | |
| Switching Characteristics tRISE, tFALL (10/90% RF) | DC - 20.0 GHz | 3 ns | |||
| Switching Characteristics tON, tOFF (50% CTL to 10/90% RF) | DC - 20.0 GHz | 6 ns | |||
| Operating Temperature | -55°C | 85°C | °C | ||
| Impedance | 50 Ohm | ||||
| Package | Die |
Key Features
- High Isolation: Over 40 dB at higher frequencies and over 50 dB at lower frequencies due to on-chip via hole structures.
- Low Insertion Loss: 1.7 dB at 20 GHz, making it suitable for high-frequency applications.
- Non-Reflective Design: Ensures minimal signal reflection, enhancing overall system performance.
- Compact Size: 1.3 x 0.8 x 0.1 mm, ideal for space-constrained applications.
- Low Power Consumption: Operates using two negative control voltage logic lines of -5/0V with no current consumption.
- Coplanar I/Os: Allows for 100% RF testing prior to delivery.
- RoHS Compliant: Lead-free and compliant with RoHS standards.
Applications
- Microwave Radio: Suitable for high-frequency radio systems due to its high isolation and low insertion loss.
- Fiber Optics: Used in fiber optic systems requiring high-frequency switching.
- Military and Aerospace: Ideal for military and aerospace applications due to its robust performance and compact size.
- VSAT (Very Small Aperture Terminal): Used in satellite communication systems.
Q & A
- What is the frequency range of the HMC347-SX RF Switch IC?
The HMC347-SX operates from DC to 20 GHz.
- What is the typical insertion loss of the HMC347-SX at 20 GHz?
The typical insertion loss is 1.7 dB at 20 GHz.
- What is the isolation level of the HMC347-SX?
The isolation level is over 40 dB at higher frequencies and over 50 dB at lower frequencies.
- What is the operating temperature range of the HMC347-SX?
The operating temperature range is -55°C to 85°C.
- Does the HMC347-SX require any power supply?
No, it operates using two negative control voltage logic lines of -5/0V with no current consumption.
- What is the package type of the HMC347-SX?
The package type is Die.
- Is the HMC347-SX RoHS compliant?
Yes, it is lead-free and RoHS compliant.
- What are the typical switching times for the HMC347-SX?
The typical switching times are 3 ns for tRISE and tFALL, and 6 ns for tON and tOFF.
- What are some common applications of the HMC347-SX?
Common applications include microwave radio, fiber optics, military, and VSAT systems.
- Can the HMC347-SX be used in space-constrained applications?
Yes, its compact size of 1.3 x 0.8 x 0.1 mm makes it ideal for space-constrained applications.
