Overview
The HMC346MS8GETR is an absorptive Voltage Variable Attenuator (VVA) produced by Analog Devices Inc. This component operates from DC to 8 GHz and is designed for applications requiring precise control over RF signal levels. The HMC346MS8GETR features an on-chip reference attenuator, enabling simple single-voltage attenuation control using an external op-amp. This device is particularly useful in designs where an analog DC control signal must regulate RF signal levels over a wide amplitude range.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Insertion Loss (DC - 8 GHz) | 1.7 | 2.2 | 2.8 | dB |
| Attenuation Range (DC - 8 GHz) | 22 | 25 | 32 | dB |
| Return Loss (DC - 8 GHz) | 10 | 12 | 15 | dB |
| Switching Characteristics tRISE, tFALL (10/90% RF) | 2 | - | - | ns |
| Switching Characteristics tON, tOFF (50% CTL to 10/90% RF) | 8 | - | - | ns |
| Input Power for 0.25 dB Compression (0.5 - 8 GHz) | +4 | - | - | dBm |
| Input Third Order Intercept (0.5 - 8 GHz) | +10 | - | - | dBm |
Key Features
- Wide bandwidth operation from DC to 8 GHz
- Low phase shift versus attenuation
- On-chip reference attenuator for simple single-voltage control
- High attenuation range of up to 32 dB
- Fast switching characteristics with tRISE and tFALL times of 2 ns and tON and tOFF times of 8 ns
- Compact die size of 0.85 x 0.85 x 0.1 mm
Applications
- Point-to-Point Radio systems
- VSAT (Very Small Aperture Terminal) Radio systems
- Other RF and microwave applications requiring precise signal attenuation control
Q & A
- What is the operating frequency range of the HMC346MS8GETR? The HMC346MS8GETR operates from DC to 8 GHz.
- What is the attenuation range of the HMC346MS8GETR? The attenuation range is up to 32 dB.
- How is the attenuation controlled in the HMC346MS8GETR? The attenuation is controlled using an on-chip reference attenuator with an external op-amp for simple single-voltage control.
- What are the typical insertion loss and return loss values for the HMC346MS8GETR? The typical insertion loss is 2.2 dB, and the typical return loss is 12 dB.
- What are the switching characteristics of the HMC346MS8GETR? The switching characteristics include tRISE and tFALL times of 2 ns and tON and tOFF times of 8 ns.
- What is the input power for 0.25 dB compression? The input power for 0.25 dB compression is +4 dBm.
- What is the input third-order intercept point? The input third-order intercept point is +10 dBm.
- What are some common applications of the HMC346MS8GETR? Common applications include Point-to-Point Radio and VSAT Radio systems.
- What is the die size of the HMC346MS8GETR? The die size is 0.85 x 0.85 x 0.1 mm.
- How is the device packaged? The HMC346MS8GETR is available in an 8-lead glass/metal (hermetic) surface-mount package.
