Evaluation Board for F1455 TX VGA
The F1455EVBK is a fully populated evaluation board which allows the customer to easily evaluate the F1455 TX RF Digital Variable Gain Amplifier. Attenuation is set...
Featured Documents:
Overview
Description
The F1455 is a high-gain/high-linearity 1400MHz to 2300MHz TX variable gain amplifier (VGA) used in transmitter applications. The F1455 TX VGA provides 32dB maximum gain with +39dBm OIP3 and 4dB 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 216mA of ICC. It is packaged in a 6mm x 6mm, 28-QFN with 50Ω single-ended RF input and RF output impedances for ease of integration into the signal path.
Features
- Broadband 1400MHz to 2300MHz
- 32dB max gain
- 4dB NF at max gain (2000MHz)
- KLIN™ amplifier with 6dB gain range
- DSA: 23.5dB range
- 29.5dB total gain control range, 0.5dB step
- < 2dB overshoot between major gain transitions such as 15.5dB to 16dB atten
- +40dBm OIP3
- Maintains +23.5dBm output P1dB over first 6dB gain adjustment range
- SPI interface for DSA control
- Single 5V supply voltage
- ICC = 216mA
- Up to +105 °C TCASE operating temperature
- 50Ω input and output impedance
- Standby for power savings
- Pin compatible 700MHz and 2700MHz versions
- 6mm x 6mm, 28-QFN package
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 4.75 MB | |
| Guide | PDF 2.24 MB | |
| Guide | PDF 2.83 MB | |
| Product Change Notice | PDF 113 KB | |
| Overview | PDF 1.15 MB | |
| Product Change Notice | PDF 32 KB | |
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Design & Development
Software & Tools
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| VFQFPN | 28 | K | Yes | Tray | 1 | Get Samples, | ||
| VFQFPN | 28 | K | Yes | Reel | 1 |
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Videos & Training
Constant Linearity (KLIN) RF Technology by IDT
IDT’s KLIN (constant linearity) RF technology extends both OIP3 and output 1 dB compression point (P1dBO) amplifier gain settings. This is particularly valuable in transmitter designs where the gain of the device is maintained within a normal gain setting window about 6 dB below maximum gain.
KLIN refers to Constant High Linearity Inner Amplifiers as the gain is adjusted. This technology extends the compression performance over a wide range of input powers, and also extends output third order intercept and corresponding inner modulation distortion performance over a wide range of output powers.
This technology is particularly advantageous in transmitter designs, where the gain of the device is maintained within a normal gain setting window.
This technology applies to some of IDT's high-gain, high-linearity transmitter variable gain amplifiers (VGAs). For more information, visit: http://www.idt.com/products/rf-products/variable-gain-amplifiers-vga.
Video List
