A 7-b digital step attenuator provide precision attenuation to 31.75 dB from 9 kHz to 8 GHz.
Model PE43704 is a compact 7-b digital step attenuator (DSA) from Peregrine Semiconductor, supporting monotonic attenuation to as much as 31.75-dB attenuation from 9 kHz to 8 GHz in 0.25-. 0.5-, or 1.0-dB steps. The 7-b DSA is based on the company’s HaRP™ UltraCMOS silicon CMOS semiconductor technology, achieving high linearity with an input third-order intercept point (IIP3) of +61 dBm at 8 GHz. The DSA maintains monotonic attenuation performance of 0.25 dB through 6 GHz and 1 dB through 8 GHz. It has fast settling time of 2 μs. The component, with electrostatic-discharge (ESD) protection of 2 kV per the human body model (HBM), offers support for 1.8 and 3.3 V control logic. The serial-addressable DSA features multiple programming modes—including serial, direct parallel, and latched parallel modes—for ease of design into a wide range of systems. It is available in a 32-lead, 5 x 5 mm QFN surface-mount housing.
Peregrine Semiconductor Corp., 9380 Carroll Park Dr., San Diego, CA 92121; (858) 731-9400, FAX: (858) 731-9499.