rev1.0 14.07.2021
ATEK355P4 is a wideband 4-bit Digital Step Attenuator with 45 dB attenuation range. Attenuator frequency of operation goes down to Low Frequency close to DC and goes up to 14 GHz. Usable bandwidth goes up to 20 GHz.
Bias and control voltages of the attenuator are positive, which eliminates the need for negative voltage rails.
Attenuator is housed in compact 4×4 mm low cost SMD package, input and output matched to 50 ohms internally.
Evaluation Board, bare die, custom package, and module options are available upon request.
| Parameter | Min | Typ | Max | Units | ||
| Operational Frequency Range | LF | 20 | GHz | |||
| Insertion Loss | 2 GHz | 2.3 | dB | |||
| 4 GHz | 2.9 | |||||
| 8 GHz | 3.8 | |||||
| 10 GHz | 4.7 | |||||
| 12 GHz | 4.5 | |||||
| Attenuation Range | 2 GHz | 44 | dB | |||
| 4 GHz | 44 | |||||
| 8 GHz | 43.6 | |||||
| 10 GHz | 46 | |||||
| 12 GHz | 44 | |||||
| Step Error | 2 | |||||
| Input Return Loss | -14 | dB | ||||
| Output Return Loss | -14 | dB | ||||
| Input P1dB | dBm | |||||
| Input IP3 | dBm | |||||
| DC Supply Voltage (Vdd) | V | |||||
| DC Supply Current | mA | |||||
| Control Voltage (P1-4) | Low | 0 | 1 | V | ||
| High | 2 | 5 | ||||
| Operating Temperature | -40 | 85 | °C | |||
