Overview
Description
The F1977 digital step attenuator featuring Glitch-Free™ technology improves system reliability and settling time. It has an attenuation range of 31.75dB with excellent accuracy and very low distortion and insertion loss.
Features
- 5MHz to 3000MHz frequency range
- Glitch-Free™ low transient overshoot
- Low insertion loss < 1.4dB at 1GHz
- Excellent linearity +64dBm IIP3
- Attenuation step error 0.1dB at 1GHz
- Serial and Parallel interface 31.75dB range
- Low spurious design
- 3V/5V supply, 1.8V/3.3V control logic
- Fast settling time
- Class 1C JEDEC ESD (1.5kV HBM)
- 5mm x 5mm 32-VFQFPN package
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 10.67 MB | |
| Guide | PDF 2.24 MB | |
| Guide | PDF 2.83 MB | |
| Product Brief | PDF 1.07 MB | |
| Application Brief | PDF 686 KB | |
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Design & Development
Software & Tools
Boards & Kits
Evaluation
F1977EVBI
Active
Evaluation Board for F1977, 7-bit, 75Ω, Digital Step Attenuator
The F1977EVBI is a fully populated evaluation board which allows the customer to easily evaluate the device. Attenuation may be set using either the parallel control input or its serial control input (through external connection and control). A dip switch on the evaluation board allows one to...
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
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