Overview
Description
The F1912 Glitch-Free™ Digital Step Attenuator (DSA) offers very high reliability due to its monolithic silicon die construction in a compact 4mm x 4mm 20-pin package QFN package. The silicon design has very low insertion loss and low distortion (> +60dBm IP3I.) The device has pinpoint accuracy and settles to a final attenuation value within 400nsec. Most importantly, the F1912 includes Renesas' Glitch-Free technology which results in low overshoot and ringing during MSB transitions.
Features
- Serial and 6-bit parallel interface
- 31.5dB control range
- 0.5dB step
- Glitch-Free™, low transient overshoot
- Attenuation error < 0.22dB at 2GHz
- Low insertion loss < 1.4dB at 2GHz
- Ultra linear >+63dBm IP3I
- 500ns switching speed
- Stable integral non-linearity over temperature
- 3.0V to 5.25V supply
- 1.8V or 3.3V control logic
- -55 °C to +105 °C operating temperature
- 4mm x 4mm thin QFN 20-pin package
- Low current consumption 550µA typ.
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 1.47 MB | |
| Guide | PDF 2.24 MB | |
| Guide | PDF 2.83 MB | |
| Report | PDF 517 KB | |
| Product Brief | PDF 1.07 MB | |
| Product Change Notice | PDF 25 KB | |
| Application Note | PDF 556 KB | |
| Product Change Notice | PDF 37 KB | |
| Product Change Notice | PDF 45 KB | |
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Design & Development
Software & Tools
Boards & Kits
Evaluation
F1912EVBI
Active
Evaluation Board for F1912 6-bit Digital Step Attenuator
The F1912EVBI is a fully populated evaluation board which allows the customer to easily evaluate the F1912 digital step attenuator. Attenuation may be set using either the F1912’s parallel control input or its serial control input. A dip switch on the evaluation board allows one to set the...
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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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