F1977 Datasheet (IDT) - Digital Step Attenuator

F1977, Digital Step Attenuator

This document describes the specification for the F1977 Digital Step Attenuator.

The F1977 is part of a family of Glitch-FreeTM DSAs optimized for the demanding requirements of CATV and Satellite systems.

These devices are offered in a compact 5 mm x 5 mm 32 pin QFN package with 75 Ω impedances for

F1977 Features

* Serial & 7 bit Parallel Interface

* 31.75 dB Control Range

* 0.25 dB step

* Glitch-FreeTM for low transient overshoot

* Low Insertion Loss: 1.4 dB @ 1 GHz

* Ultra linear IIP3: +64 dBm

* Attenuation Error: -0.1 dB @ 1 GHz

* Stable Atte