Overview
The HMC939LP4 is a broadband 5-bit GaAs IC digital attenuator produced by Analog Devices Inc. This component is designed to operate over a wide frequency range of 0.1 to 33.0 GHz, making it suitable for various high-frequency applications. It is available in a low-cost, leadless surface mount package, which enhances its usability in compact and high-performance systems.
Key Specifications
| Parameter | Frequency Range | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Insertion Loss | 0.1 - 18.0 GHz | 4.0 | 5.0 | 5.5 | dB |
| Insertion Loss | 18.0 - 26.5 GHz | 5.5 | 6.5 | 7.0 | dB |
| Insertion Loss | 26.5 - 33.0 GHz | 7.0 | 8.5 | 8.5 | dB |
| Attenuation Range | 0.1 - 33.0 GHz | 31 dB | dB | ||
| Return Loss (RF1 & RF2, All Attenuation States) | 0.1 - 33.0 GHz | 12 dB | dB | ||
| Attenuation Accuracy (Referenced to Insertion Loss) | 1.0 - 15 dB States | ±0.4 dB | dB | ||
| Attenuation Accuracy (Referenced to Insertion Loss) | 16 - 31 dB States | ±0.5 dB | dB | ||
| Input IP3 | - | - | +43 dBm | - | dBm |
| Power Handling | - | - | 27 dBm | - | dBm |
| Supply Voltages | - | VDD = +5V, VSS = -5V | - | - | V |
Key Features
- 5-bit digital attenuator with 1.0 dB least significant bit (LSB) steps to 31 dB.
- Operates over a broad frequency range from 0.1 to 33.0 GHz.
- Low insertion loss: less than 5 dB typical.
- High attenuation accuracy: ±0.4 dB typical for 1.0 - 15 dB states and ±0.5 dB typical for 16 - 31 dB states.
- High input IP3: +43 dBm typical.
- Dual-supply operation: VDD = +5V, VSS = -5V.
- CMOS-/TTL-compatible parallel control interface.
- Available in a compact, 16mm² leadless surface mount package.
Applications
- Fiber Optics and Broadband Telecommunications.
- Microwave Radio and Very Small Aperture Terminals (VSATs).
- Military Radios, Radar, and Electronic Counter Measures (ECMs).
- Space Applications.
- Sensors.
- Test and Measurement Equipment.
Q & A
- What is the frequency range of the HMC939LP4? The HMC939LP4 operates over a frequency range of 0.1 to 33.0 GHz.
- What is the attenuation range of the HMC939LP4? The attenuation range is 31 dB in 1.0 dB steps.
- What is the typical insertion loss of the HMC939LP4? The typical insertion loss is less than 5 dB.
- What are the supply voltages required for the HMC939LP4? The component requires dual supply voltages: VDD = +5V and VSS = -5V.
- What is the input IP3 of the HMC939LP4? The input IP3 is +43 dBm typical.
- What type of control interface does the HMC939LP4 use? The HMC939LP4 uses a CMOS-/TTL-compatible parallel control interface.
- In what type of package is the HMC939LP4 available? The component is available in a 16mm² leadless surface mount package.
- What are some of the typical applications of the HMC939LP4? Typical applications include fiber optics, broadband telecommunications, microwave radio, VSATs, military radios, radar, ECMs, space applications, sensors, and test and measurement equipment.
- What is the power handling capability of the HMC939LP4? The power handling capability is 27 dBm.
- Is the HMC939LP4 RoHS compliant? Yes, the HMC939LP4E version is RoHS compliant.
