suitable for pe4302 digital programmable step attenuator module dc 4ghz 0-31.5db 0.5db rf diy electronics PE4302 is a high linearity, 6-bit digital RF step attenuator, "DSA" with 0.5 dB steps to 31.5 dB attenuation range. The frequency range is from DC-4000MHz to achieve attenuation. This 50 ohm RF DSA provides parallel and serial CMOS control interfaces running on a single 3 volt power supply, and maintains high frequency and temperature attenuation accuracy. It also has a unique control interface that allows the user to select the initial attenuation state at power-up. With shielding shell and anti-reverse connection protection diode. 1. Power supply voltage: 5V DC (typical current value 5mA) 2. Programmable gain attenuation range: 0 to 31.5DB step 0.5DB input and output impedance: 50 ohms 3. The module supports parallel port and serial port mode and power-on state selection function 4. Bandwidth: 1MHz to 4GHz (the attenuation value is different under different frequencies) different mode configuration: 1. Serial mode configuration: disconnect J5 J7 J6 and short J4 Three-wire serial mode, the pins are: GND DATA CLK LE 3.3V 2. Parallel port C0.5-C16 control mode configuration: disconnect J4 J7 and short J5 J6 3. Parallel port PUP control mode configuration: disconnect J4 J5 and short J7 J6 Material:Metal+PC colour:green Package Contents: 1 x Step Attenuator Module 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.4891662125332