SKY73021-11

Series:	--
Part Status:	Obsolete
RF Type:	CDMA, EDGE, GSM, UMTS, WCDMA
Frequency:	1.7GHz ~ 2.2GHz
Number of Mixers:	2
Gain:	6dB
Noise Figure:	9.6dB
Secondary Attributes:	--
Current - Supply:	380mA
Voltage - Supply:	5V

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RF Mixers

RF mixers are essential components in many different types of wireless communication and RF signal processing systems. They are used to convert or combine two signals with different frequencies into a third signal with a different frequency, or to extract out a signal from a complex signal. The technical characteristics of RF mixers can dramatically affect the performance of the system in which they are being used so it is important to understand the primary factors that need to be considered when selecting or designing an RF mixer design. SKY73021-11 is a major type of RF mixer designed to transmit signals in the frequency range from 700MHz to 1100MHz. This feature makes SKY73021-11 an ideal choice for a range of wireless communications that require high efficiency, low-noise output, and wide range of operating frequency.

Application Field

SKY73021-11 RF mixer can be applied in various fields of wireless communication, such as satellite communications, digital television, and radio relay systems. Depending on the specific application, different parameters of the RF mixer need to be tailored, such as its conversion loss, intermodulation products, conversion gain, and noise figure. The main features of this mixer include high dynamic range, low-noise figure, and low insertion loss, which makes it a suitable choice for communication networks that require long transmission distances. For example, the SKY73021-11 mixer can be used in terrestrial broadcast systems that operate in the VHF band. The mixer has a high linearity, so it can be used in systems that require high-fidelity signal transmission.In addition, the SKY73021-11 mixer is well-suited for use in cellular communication systems, such as GSM and CDMA networks, due to its low-noise figure. The mixer can also be used in GPS systems, where it is used to combine multiple satellite signals to provide a single signal output.

Working Principle

RF mixers work by combining two signals with different frequencies, so that a third signal at a third frequency can be created. This third frequency, known as the difference frequency, is created by subtracting the frequencies of the two original signals from each other. This process requires an active device, such as a diode, transistor, or integrated circuit, to produce the amplified difference frequency for the output signal. The SKY73021-11 RF mixer uses a double balanced Schottky diode mixer to combine two signals with different frequencies. The mixer operates in a single-ended configuration, where one signal is combined at the center frequency, and the other signal is combined at the outer frequency. The two signals are amplified to a certain level before being combined and the mixer produces an amplified difference frequency for the output signal. The mixer can be used in single sideband or double sideband applications. In single sideband applications, the mixer passes the signal directly to the output while rejecting the other input signal, while in double sideband applications the mixer passes both signals to the output. The mixer also has a wide range of gain control capabilities, allowing its output signal to be tailored to the specific application. The mixer also has a temperature-compensated bias circuit that helps to ensure a robust operation, and its double balanced Schottky diodes contribute to its high-performance characteristics. In addition, the mixer has an integrated balun circuit that allows for a single-ended operation, allowing it to be used in applications where a differential input and output is not required. The mixer also has a frequency-agile ability, allowing it to be used for applications where frequency-agile operation is needed.

Conclusion

The SKY73021-11 RF mixer is a versatile component that can be used in a variety of different applications that require an efficient, low-noise, and wide-band operation. The mixer incorporates several features that contribute to its flexibility and reliability, and its wide range of gain control capabilities allows it to be tailored to the specific application. The mixer\'s double balanced Schottky diode mixer configuration provides excellent performance in both single sideband and double sideband applications, and its integrated balun circuit allows it to be used in applications where a differential input and output is not required.

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