LT5558EUF#PBF

Series:	--
Packaging:	Tube
Part Status:	Active
Function:	Modulator
LO Frequency:	600MHz ~ 1.1GHz
RF Frequency:	600MHz ~ 1.1GHz
P1dB:	7.8dBm
Noise Floor:	-158dBm/Hz
Output Power:	-1.1dBm
Current - Supply:	108mA
Voltage - Supply:	4.5 V ~ 5.25 V
Test Frequency:	900MHz
Package / Case:	16-WQFN Exposed Pad
Base Part Number:	LT5558

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RF Modulators: LT5558EUF#PBF Application Field and Working Principle
RF Modulators are highly integrated, precision RF components designed to convert digital signals into analog AM and FM radio frequency signals. As a core product of Motorola Solutions, the LT5558EUF#PBF RF Modulator is a highly efficient, cost-effective solution for creating digital AM/FM radio signals. Each LT5558EUF#PBF device can produce a digital signal with a wide variety of input formats, including single-ended, differential, 8-bit or higher format. In addition, the LT5558EUF#PBF can operate at very low power consumption levels, and has been designed to be completely noise free. It also comes with a range of features that make it suitable for wide-ranging audio applications in automotive, aerospace, broadcast and consumer electronics applications.Application Fields of LT5558EUF#PBF
The LT5558EUF#PBF is suitable for a broad range of audio applications which include:

• Automotive Industries: This device can be used in radio transmission systems for in-car entertainment and navigation systems, as well as for on-board diagnostics and data-transmission systems.
• Home Entertainment: This device can be used in home audio systems to provide FM/AM sound transmission from electronic devices such as DVD players, CD players, and set-top boxes.
• Broadcast Radio: The LT5558EUF#PBF is suitable for high-quality broadcast radio applications, where accurate signal reproduction is essential.
• Consumer Electronics: The device can be used for the radio broadcast of audio signals in tablet computers, smart phones, and other portable electronic devices.
• Aerospace/Aviation: This device is perfect for providing an efficient, low-power solution for audio and data transmission in aviation and aerospace applications.

Working Principle of LT5558EUF#PBF
The LT5558EUF#PBF utilizes advanced technology to convert digital signals into analog FM and AM radio frequency signals. This is accomplished through a combination of modulation and filtering techniques which provide a remarkably clean signal with low distortion. The modulation process involves using the digital signal to modulate a sine wave, which is then used to modulate a radio frequency carrier signal. The filtered “baseband” signal is then converted to the desired frequency band using an upconversion process. The device also comes with advanced features such as automatic frequency control and dynamic range compression, which ensure maximum signal fidelity and sound quality. The LT5558EUF#PBF can also be used for digital audio broadcasting (DAB), where the radio frequencies are generated digitally. In this case, the digital signal is modulated using carrier modulation, and then filtered through a baseband filter. This filtered signal is then upconverted to the appropriate frequency band for transmission.Conclusion
The LT5558EUF#PBF is an advanced RF modulator which is suitable for a broad range of audio applications. It offers a highly efficient, cost-effective solution for creating FM/AM radio signals, and is ideal for automotive, broadcast, consumer electronics and aerospace/aviation applications. Its advanced modulation and filtering techniques provide a clean signal with low distortion, while its automatic frequency control and dynamic range compression features ensure maximum signal fidelity and sound quality.

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