LT5519EUF#TRPBF

Series:	LT5519
Packaging:	Tape & Reel (TR)
Part Status:	Active
RF Type:	General Purpose
Frequency:	700MHz ~ 1.4GHz
Number of Mixers:	1
Gain:	-0.6dB
Noise Figure:	13.6dB
Secondary Attributes:	Up Converter
Current - Supply:	70mA
Voltage - Supply:	4.5 V ~ 5.25 V
Package / Case:	16-WQFN Exposed Pad
Supplier Device Package:	16-QFN (4x4)
Base Part Number:	LT5519

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RF Mixers

The LT5519EUF#TRPBF is a low-noise RF mixer designed for use across a wide range of applications. It combines a low-noise, low-distortion amplifier with a compact, lightweight, and highly efficient RF mixer. The mixer provides a wide frequency range of operation and is suitable for both linear and baseband applications. In this article, we will discuss the applications of the LT5519EUF#TRPBF and its working principle.

Applications

The LT5519EUF#TRPBF is a high-performance RF mixer that is suitable for many applications, including professional broadcast, microwave links, direct broadcast television, cellular base stations, mobile telephony, wireless systems, and digital cellular applications. It is also used in general purpose mixers, sweep generators, and wideband amplifiers. The low-noise amplifier in the LT5519EUF #TRPBF provides excellent linearity and low noise figure. The wideband mixer is also able to reject low-level image signals while providing excellent LO-to-IF isolation. The LT5519EUF #TRPBF can operate down to 21 kHz and up to 5GHz, making it ideal for use in digital RF systems. Its wide range of applications makes the LT5519EUF#TRPBF the perfect choice for any application where high-performance RF mixing is required.

Working Principle

The LT5519EUF#TRPBF is a double-balanced mixer with a low-noise amplifier. It contains two balanced ports, one with an input signal, the other with an LO signal. The LO port is connected to an amplifier, whose output is used to drive the RF port of the mixer, while the output of the mixer is connected to the IF port.When the LO and IF ports of the mixer are connected to the amplifiers, they are both biased by the DC bias provided by the amplifier. This bias increases the efficiency of the mixer by allowing the LO signal and IF signals to be correctly phase matched at the ports. Once the LO and IF ports are connected, the input signal is applied to one of the ports. This initiates mixing of the two signals. The output of the mixer is the IF signal, which results from the down conversion of the input signal. The IF signal contains all of the information contained in the input signal, but at a lower frequency. The most significant feature of the LT5519EUF#TRPBF is that its internal design helps eliminate image signal interference. This is done by using the LO port bias to change the phase of the LO signal at the RF port of the mixer, helping to reject the image signal.

Conclusion

The LT5519EUF#TRPBF is a low-noise RF mixer that is ideal for use in a variety of applications, including broadcast, microwave links, base stations, and wireless systems. Its wide frequency range of operation and low-noise amplifier make it an excellent choice for any application where high-performance RF mixing is required. The mixer is also able to reject image signal interference, providing improved performance over other RF mixers.

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