Overview
The HMC472ALP4ETR is a 6-bit GaAs MMIC (Monolithic Microwave Integrated Circuit) digital attenuator produced by Analog Devices Inc. This component is designed for broadband applications, operating from DC to 3.8 GHz. It features a single positive control line per bit, making it suitable for a wide range of RF and IF applications. The attenuator is packaged in a low-cost, leadless surface mount package, specifically a 24-lead ceramic 4x4mm SMT package.
Key Specifications
| Parameter | Value |
|---|---|
| Attenuation Steps | 0.5 dB (LSB), 1, 2, 4, 8, 16 dB |
| Total Attenuation | 31.5 dB |
| Attenuation Accuracy | ± 0.25 dB (typical), ± (0.35 + 5% of Atten. Setting) Max. |
| Insertion Loss | < 2.0 dB (typical) |
| Input Power for 0.1 dB Compression | 30 dBm (0.1 - 3.8 GHz) |
| Input Third Order Intercept Point | 54 dBm (Two-Tone Input Power = 0 dBm Each Tone) |
| Switching Characteristics | tRISE, tFALL (10/90% RF): 40 ns, tON, tOFF (50% CTL to 10/90% RF): 60 ns |
| Supply Voltage | +5V |
| Package Type | 24 Lead Ceramic 4x4mm SMT Package |
Key Features
- TTL/CMOS compatible control
- Single positive control line per bit
- Off-chip AC ground capacitors for near DC operation
- Low insertion loss: less than 2.0 dB typical
- High attenuation accuracy: ± 0.25 dB typical
- Single +5V supply
- Compact 4x4mm SMT package
Applications
- 3G Infrastructure and access points
- Cellular/3G, LTE, and UMB
- WiMAX, WiBN, and Fixed Wireless
- Test Equipment and Sensors
- GSM, WCDMA, and TD-SCDMA
Q & A
- What is the frequency range of the HMC472ALP4ETR? The HMC472ALP4ETR operates from DC to 3.8 GHz.
- What are the attenuation steps of the HMC472ALP4ETR? The attenuation steps are 0.5 dB (LSB), 1, 2, 4, 8, and 16 dB.
- What is the total attenuation range of the HMC472ALP4ETR? The total attenuation range is 31.5 dB.
- What is the typical insertion loss of the HMC472ALP4ETR? The typical insertion loss is less than 2.0 dB.
- What is the input power for 0.1 dB compression? The input power for 0.1 dB compression is 30 dBm from 0.1 to 3.8 GHz.
- What is the input third order intercept point? The input third order intercept point is 54 dBm for two-tone input power of 0 dBm each tone.
- What are the switching characteristics of the HMC472ALP4ETR? The switching characteristics include tRISE, tFALL (10/90% RF): 40 ns, and tON, tOFF (50% CTL to 10/90% RF): 60 ns.
- What is the supply voltage for the HMC472ALP4ETR? The supply voltage is +5V.
- What type of package does the HMC472ALP4ETR come in? The HMC472ALP4ETR comes in a 24-lead ceramic 4x4mm SMT package.
- What are some typical applications of the HMC472ALP4ETR? Typical applications include 3G infrastructure, cellular/3G, LTE, WiMAX, test equipment, and sensors.
