Overview
Description
The F1451 is a High-Gain/High-Linearity 450MHz to 1100MHz TX Variable Gain Amplifier used in transmitter applications. The F1451 TX VGA provides 32dB maximum gain with +41dBm OIP3 and 3.6dB noise figure. Up to 29.5dB gain control is achieved using the combination of a digital step attenuator (DSA) plus KLIN™ RF variable gain amplifier gain adjustment. This device uses a single 5V supply and 185mA of ICC. This device is packaged in a 6 × 6 mm, 28-QFN with 50Ω single-ended RF input and RF output impedances for ease of integration into the signal path.
Features
- Broadband 450MHz to 1100MHz
- 32dB max gain
- 3.6dB NF at max gain (900MHz)
- 29.5dB total gain control range, 0.5dB step
- < 2dB overshoot between major gain transitions
- +41dBm OIP3
- Maintains +23dBm output P1dB over 13dB gain adjustment range
- SPI interface for DSA control
- Single 5V supply voltage
- ICC = 185mA
- Up to +105°C TCASE operating temperature
- 50Ω input and output impedance
- Standby for power savings
- Pin compatible 1400–2300 MHz and 2100–2950 MHz versions
- 6 × 6 mm, 28-QFN package
Comparison
Applications
Documentation
|
|
|
---|---|---|
Type | Title | Date |
Datasheet | PDF 8.90 MB | |
Guide | PDF 2.24 MB | |
Guide | PDF 2.83 MB | |
Overview | PDF 1.15 MB | |
Product Change Notice | PDF 32 KB | |
5 items
|
Design & Development
Software & Tools
Boards & Kits
Evaluation Kit for F1451 TX VGA
The F1451EVBK is a fully populated evaluation board that allows the customer to easily evaluate the F1451 TX RF Digital Variable Gain Amplifier. Attenuation is set using SPI.
The F1451EVSK is a complete hardware and software solution that allows customers to digitally control the F1451EVBK...
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.

Product Options
Applied Filters: