HMC8073 Datasheet | Analog Devices

FEATURES Attenuation range: 0.5 d B LSB steps to 31.5 d B Low insertion loss 1.1 d B to 1.0 GHz 1.5 d B to 2.0 GHz Tight attenuation accuracy Less than ±0.25 d B (plus 3% of attenuation state) Low phase shift error: 4° phase shift to 1.0 GHz Bidirectional use: 30 d Bm high power handling Internal dc block on the RFIN/RFOUT pins High linearity P1d B: 31 d Bm typical Input IP3: 52 d Bm typical Safe state transitions Serial interface with TTL/CMOS Up to 8 devices on a single data bus Single-supply operation: 3.3 V to 5.0 V ESD sensitivity rating: Class 1C (1 k V human body model) 16-lead, 3 mm × 3 mm LFCSP package: 9 mm2 APPLICATIONS Cellular infrastructure Microwave radios Very small aperture terminals Test equipment and sensors GENERAL DESCRIPTION The HMC8073 is a 6-bit digital step attenuator (DSA), operating from 0.6 GHz to 3.0 GHz, that features 31.5 d B of attenuation range with 0.5 d B steps. The HMC8073 is implemented in a silicon process, offering a fast settling time, low power consumption, and high electrostatic discharge (ESD) robustness. The device features safe state transitions, allowing attenuation state changes without overshooting, and is optimized for excellent step accuracy and high power and high linearity over frequency and temperature range. The radio frequency (RF) input and output are internally matched to 50 Ω and do not require any external matching ponents. The design is bidirectional, and the RF input and output are interchangeable. FUNCTIONAL BLOCK DIAGRAM 16 A2 15 A1 14 SI 13 CLK VDD 1 A0 2 GND 3 RFIN 4 LOGIC CONTROL 6-BIT DSA 12 LE 11 GND 10 GND 9 RFOUT GND 5 GND 6 GND 7 GND 8 14678-001 Figure 1. The external address feature of the HMC8073 allows users to control up to eight DSAs using a single bus. The DSA has an on-chip regulator that supports a wide supply operating range from 3.3 V to 5.0 V with no performance change in electrical characteristics. The HMC8073 incorporates a plementary metal-oxide semiconductor (CMOS)- and...