Maintaining monotonic response across their entire frequency ranges, a pair of digital step attenuators (DSAs) from pSemi, a Murata company, offer high linearity (see figure), fast switching times, and extremely high attenuation accuracy. The PE43610 and PE43614 DSAs support the entire 9 kHz to 13 GHz and 9 kHz to 45 GHz frequency ranges, respectively. The components are well suited for 5G test-and-measurement applications.
The PE43610 and PE43614 DSAs cover a 31.5-dB attenuation range in 0.5-dB and 1-dB steps, and they can maintain 0.5-dB and 1-dB monotonicity throughout their frequency ranges. These DSAs also deliver glitch-safe attenuation state transitions, meaning no increased power spike during a state transition.
Both DSAs have an extended temperature range of −40°C to +105°C, an HBM ESD rating of 1 kV, and an easy-to-use digital control interface supporting both parallel and serial addressable programming. These products support 1.8-V control signals and have an optional VSS_EXT bypass mode.
These high-performance DSAs feature flexible attenuation steps and parallel and serial programming interfaces with serial addressability. The PE43610 and PE43614 are designed for use in test-and-measurement equipment, point-to-point communication systems, and very small-aperture terminals (VSATs).
For even broader frequency coverage, the PE43614 is available as the PE43508, a flip-chip die version that extends coverage to 55 GHz.
The PE43610 and PE43614 are offered in a 24-lead, 4 x 4 mm LGA package. Volume-production parts, samples, and evaluation kits are available now. In quantities of 1000, the PE43610 (6 bits, 50 Ω) is $15.17 each; the PE43614 (6 bits, 50 Ω) is $48.53 each.