The HMC472 is a broadband 6-bit digital attenuator with an attenuation range of 0 to 31.5dB and a typical step error of 0.25dB.It is packaged in a QFN surface mount package, powered by a single power supply of 5V, and operates from DC to 3.8 GHz with an insertion loss of less than 2.0 dB (typ.), IIP3 is +54 dBm, suitable for various RF and IF applications.The main features of the module are as follows:(1) Operating frequency range: 1M ~ 3.8GHz;(2) Maximum power of input signal: 20dBm(3) Attenuation multiple and step size: attenuation multiple is 0~31.5dB, step size is 0.5dB.(4) Insertion loss: less than 2.0dB.(5) Attenuation control interface: one is manual adjustment and control through the 6-bit pin header on the board;(6) Input and output impedance: 50.(7) Power supply: the typical value is +5V, and the maximum cannot exceed +7V.(8) Input and output interface: SMA interface inner screw hole.Colour:greenMaterial:ABS Size:55 x 30 x 20mm Package Contents:1 * Digitally AttenuatorOnly 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.