HMC1122LP4ME Integrated Circuit Chip 0.1GHz To 6GHz 0.5 dB LSB 6-Bit Silicon Digital Attenuator

HMC1122 is a 6-bit digital attenuator operating from 0.1 GHz to 6 GHz with a 31.5 dB attenuation control range in 0.5 dB steps.

The HMC1122 is implemented in a silicon process, offering very fast settling time, low power consumption, and high ESD robustness. The device features safe state transitions and is optimized for excellent step accuracy and high linearity over frequency and temperature range. The RF input and output are internally matched to 50 Ω and do not require any external matching components. The design is bidirectional; therefore, the RF input and output are interchangeable.

The HMC1122 operates on a single supply ranging from 3.3 V to 5 V with no performance change due to an on-chip regulator.

• Attenuation range: 0.5 dB LSB steps to 31.5 dB
• Low insertion loss: 1.1 dB at 1 GHz, 1.3 dB at 2 GHz
• Typical step error: less than ±0.1 dB
• Excellent attenuation accuracy
• Safe state transitions
• High linearity
• Input 0.1dB compression (P0.1dB): 30 dBm typical
• Input third-order intercept (IP3): 55 dBm typical
• RF settling time (0.05 dB final RF output): 250 ns
• Low phase shift error: 6° at 1 GHz
• Single supply operation: 3.3 V to 5 V
• ESD rating: Class 2 (2 kV HBM)
• 24-lead, 4 mm × 4 mm LFCSP package: 16 mm²
• Pin compatible to the HMC624A

• Cellular infrastructure
• Microwave radios and very small aperture terminals (VSATs)
• Test equipment and sensors
• IF and RF designs