The 4209 Series from Weinschel by Spectrum Control are MMIC digital attenuators that operate from 0.1 to 40 GHz. They have an attenuation range of 0 to 31.5 dB in 0.5 dB steps and can handle an input power of up to 28 dBm. These attenuators can be controlled using parallel (TTL compatible), I2C, SPI, UART, or USB interfaces making them ideal for ATE systems simulating RF fading for 2G/3G/4G LTE and 5G in MIMO, WiMAX and WiFi system design. They are available in a module with 2.4 and 2.92 mm female connectors.
