RF mixers are essential components in radio frequency communication systems. The MAX2530ETI+ is a high performance RF mixer from Maxim Integrated, which is designed to provide excellent RF-to-IF conversion performance in Oscilloscope, wave generator, professional communication systems, cellular and personal communication network. This application note provides a brief overview of the MAX2530ETI+ mixer, its application fields and working principle, so to understand its characteristics and performance.
Application Field
The MAX2530ETI+ mixer operates from DC to 1GHz and provides a mixer with a conversion loss of 20dB. It is suitable for applications such as Oscilloscope, wave generator, professional communication systems, cellular and personal communication network. It is also suitable for spectrum analyzers, modems, test and measurement, radio frequency identification (RFID) receivers and transceivers.
The MAX2530ETI+ mixer architecture integrates three important features that enable the design of small and efficient RF transmitters and receivers. First, the mixer architecture is based on a standard Gilbert-Cell topology, providing low noise and exceptional RF-to-IF conversion performance. Second, the mixer architecture utilizes high linearity FET switches that generate minimal spurious signals. Finally, the architecture is designed to achieve low distortion and low intermodulation distortion at wide dynamic range of input signal levels.
Working Principle
The MAX2530ETI+ mixer is a passive diode-based mixer. It functions by modulating the input signal with the RF signal, creating sum and difference frequency components within the RF signal. This mixer section consists of a circuit consisting of two mixers, two diodes and one variable capacitance diode. The capacitor connected to the diodes alters the diode capacitance to modulate the input signal. The modulated signal is then amplified using an amplifier stage to provide the desired output signal.
The MAX2530ETI+ mixer has a 1dB compression point of -14dBm. It also has an isolation of 18dB and a 1dB noise figure of -93dBm. The mixer also has a harmonics rejection of -14.7dBc at 900MHz. The MAX2530ETI+ mixer is capable of working from -40°C to +85°C.
Conclusion
The MAX2530ETI+ is a high performance RF mixer from Maxim Integrated which offers excellent RF-to-IF conversion performance. It is suitable for Oscilloscope, wave generator, professional communication systems, cellular and personal communication network and other high-performance RF applications. The mixer also offers excellent isolation and low distortion. The MAX2530ETI+ mixer\'s operational temperature range is from -40°C to +85°C.