Overview
The HMC539ALP3TR, produced by Analog Devices Inc., is a broadband 5-bit GaAs IC digital attenuator designed for a wide range of RF and IF applications. This component is housed in a low-cost, leadless surface mount package, making it ideal for various communication and microwave systems. It operates with a single positive control line per bit and is compatible with TTL/CMOS control inputs. The attenuator covers frequencies from DC to 4 GHz and features low insertion loss and high linearity, making it suitable for cellular infrastructure, ISM, MMDS, WLAN, WiMAX, WiBro, microwave radio, VSAT, and test equipment.
Key Specifications
| Parameter | Frequency Range | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Insertion Loss | DC - 1.5 GHz | 0.7 | 0.7 | 1.0 | dB |
| 1.5 - 3.0 GHz | 1.0 | 1.0 | 1.3 | dB | |
| 3.0 - 4.0 GHz | 1.3 | 1.3 | 1.7 | dB | |
| Attenuation Range | DC - 4 GHz | 7.75 | dB | ||
| Return Loss (RF1 & RF2) | DC - 3 GHz | 25 | dB | ||
| 3.0 - 4.0 GHz | 20 | dB | |||
| Attenuation Accuracy | DC - 3 GHz | ± (0.2 + 2% of Atten. Setting) | dB | ||
| 3.0 - 4.0 GHz | ± (0.2 + 4% of Atten. Setting) | dB | |||
| Input Power for 0.1 dB Compression | 0.1 - 4.0 GHz | 32 | dBm | ||
| Input Third Order Intercept Point | 0.1 - 4.0 GHz | 62 | dBm | ||
| Switching Characteristics tRISE, tFALL | DC - 4 GHz | 45 | ns | ||
| Switching Characteristics tON, tOFF | DC - 4 GHz | 52 | ns | ||
| Operating Temperature | -40 | 85 | °C | ||
| Storage Temperature | -65 | 150 | °C |
Key Features
- 5-bit digital attenuator with 0.25 dB LSB steps to 7.75 dB total attenuation.
- Low insertion loss: 0.7 dB typical.
- High IP3: +62 dBm.
- Single positive control line per bit, TTL/CMOS compatible.
- Single +3V to +5V supply.
- 3x3 mm SMT package.
- Off-chip AC ground capacitor for near DC operation.
- Excellent attenuation accuracy: ± 0.05 dB typical step error.
Applications
- Cellular Infrastructure.
- ISM, MMDS, WLAN, WiMAX, WiBro.
- Microwave Radio & VSAT.
- Test Equipment and Sensors.
Q & A
- What is the frequency range of the HMC539ALP3TR? The HMC539ALP3TR operates from DC to 4 GHz.
- What is the insertion loss of the HMC539ALP3TR? The insertion loss is less than 0.7 dB typical from DC to 1.5 GHz, increasing to 1.7 dB at 3.0-4.0 GHz.
- What is the attenuation range of the HMC539ALP3TR? The attenuation range is 7.75 dB with 0.25 dB LSB steps.
- What is the input power for 0.1 dB compression? The input power for 0.1 dB compression is 32 dBm from 0.1 to 4.0 GHz.
- What is the input third-order intercept point (IIP3) of the HMC539ALP3TR? The IIP3 is +62 dBm.
- What is the operating temperature range of the HMC539ALP3TR? The operating temperature range is -40°C to +85°C.
- What is the storage temperature range of the HMC539ALP3TR? The storage temperature range is -65°C to +150°C.
- Is the HMC539ALP3TR RoHS-compliant? Yes, the HMC539ALP3E version is RoHS-compliant.
- What is the package type of the HMC539ALP3TR? The component is housed in a 3x3 mm SMT package.
- What control inputs does the HMC539ALP3TR use? The attenuator uses five TTL/CMOS control inputs.
