F1977 Description
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 pact 5 mm x 5 mm 32 pin QFN package with 75 Ω impedances for ease of integration.
F1977 Key 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 Attenuator Accuracy over temperature
- Bi-directional RF use
- 3.00 V to 5.25 V supply