The GRF6402W is a SPI-controlled, bi-directional, 31.75 dB range digital step attenuator which provides precise stepping in 0.25 dB increments. The device’s serial interface utilizes three externally-defined address bits, allowing up to 8 unique devices to share a common SPI bus. In addition to supporting traditional serial programming, the GRF6402W also includes a special Rapid Fire selection pin which allows the device to be immediately switched into a pre-defined attenuation state.

In terms of performance, the GRF6402W can cover the entire 50 MHz to 6 GHz range while still maintaining precise and monotonic gain stepping. Glitching has been minimized to < 2 dB for all steps. The device delivers up to 30.5 dBm of IP0.1dB, 55 dBm of IIP3 and a low IL of less than 1.4 dB at 2 GHz.

The GRF6402 is a SPI-controlled, bi-directional, 31.75 dB range digital step attenuator which provides precise stepping in 0.25 dB increments. The device’s serial interface utilizes three externally-defined address bits, allowing up to 8 unique devices to share a common SPI bus. In addition to supporting traditional serial programming, the GRF6402 also includes a special Rapid Fire selection pin which allows the device to be immediately switched into a pre-defined attenuation state.

In terms of performance, the GRF6402 can cover the entire 50 MHz to 6 GHz range while still maintaining precise and monotonic gain stepping. Glitching has been minimized to < 2 dB for all steps. The device delivers up to 30.5 dBm of IP0.1dB, 55 dBm of IIP3 and a low IL of less than 1.4 dB at 2 GHz.

The GRF6403 is a bi-directional, 31.75 dB range digital step attenuator which provides precise stepping in 0.25 dB increments. The device supports three unique programming modes, including serial, direct parallel, 
and latched parallel. In addition, the GRF6403 also includes a special Rapid Fire™ selection pin which allows the device to be immediately switched into a pre-defined attenuation state. This ability to quickly shift
into a secondary state allows a single device to be used in TDD applications where different attenuation levels are needed for TX and RX modes of operation.

In terms of performance, the GRF6403 can cover the entire 50 MHz to 6 GHz range while still maintaining precise and monotonic gain stepping. Glitching has been minimized to < 2 dB for all steps. The device delivers
up to 30.5 dBm of IP0.1dB, 55 dBm of IIP3 and a low IL of less than 1.3 dB at 2 GHz.