1. Suitable for RF and IF applications. 2. Made of high-quality electronic components, stable and reliable. 3. HMC472 is a broadband 6-bit digital attenuator, with an attenuation range of 0 to 31.5 dB, and a typical step error of 0.25 dB. 4. Adopt QFN surface mount package, use 5V single power supply, operating frequency range from DC to 3.8 GHz. 5. Insertion loss is less than 2.0 dB (typical value), and IIP3 is +54 dBm. (1) Operating frequency range: 1M~3.8GHz; (2) Maximum power of input signal: 20dBm (3) Attenuation factor and step length: The attenuation factor is 0~31.5dB, and length is 0.5dB. (4) Insertion loss: less than 2.0dB. (5) Attenuation control interface: one is manual adjustment control through the 6-position pin header on the board; (6) Input and output impedance: 50. (7) Power supply: the typical value is +5V, and the maximum value cannot exceed +7V. (8) Input and output interface: SMA interface inner screw inner hole Colour:green Material:PCB+metal Size: 5.8 x 4.3 x 1.2cm Package Contents: 1 x RF Attenuator Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.