Overview
Description
The F1280 is a highly integrated 0.001MHz to 1200MHz dual VVA+VGA with integrated RMS detectors. The two independently controlled VVA+VGAs each provide 24dB of gain range with four different selectable gain ranges. The VGA gain ranges and switchable VGA2 inputs are controlled through an SPI interface with a 10MHz maximum clock operating frequency.
Features
- 200Ω differential inputs and 100Ω outputs
- Dual VVA+VGA with output RMS detectors
- SPI configurable VGA gain range
- 24dB gain range for each VVA
- Switchable dual inputs for VGA2
- Power-down feature
- Supply voltage: +4.75V to +5.25V
- Total supply current: 145mA
- 5mm x 5mm, 32-VFQFPN package
- -40 °C to +105 °C exposed pad operating temperature range
Comparison
Applications
Documentation
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Type | Title | Date |
Datasheet | PDF 1.19 MB | |
Guide | PDF 2.24 MB | |
2 items
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Design & Development
Boards & Kits
F1280 Dual Variable Gain Amplifier Evaluation Kit
The F1280EVK is a fully populated evaluation board that allows the customer to evaluate the F1280 dual VVA+VGA with integrated RMS detectors. The F1280 VGA gain ranges and switchable VGA2 inputs are controlled with serial communication input using a USB digital interface board that connects to...
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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