MAX2689LEWS+T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Frequency:	1575MHz ~ 1610MHz
P1dB:	--
Gain:	15.1dB
Noise Figure:	1.2dB
RF Type:	Galileo, GLONASS, GPS
Voltage - Supply:	1.6 V ~ 3.6 V
Current - Supply:	7.6mA
Test Frequency:	1575.42MHz
Package / Case:	4-WFBGA, WLBGA
Supplier Device Package:	4-WLP (0.84x0.84)

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Introduction

MAX2689LEWS+T is an RF amplifier developed by Maxim Integrated Products, a leader in analog and mixed-signal semiconductor products. It is a fully integrated RF power amplifier designed for the 900MHz ISM (industrial, scientific, and medical) frequency band. It is a two-stage device, capable of delivering up to +24 dBm of output power from a single-supply voltage of 2.7V to 5.25V, supporting a RF frequency range from 868MHz to 940MHz and power efficiency of over 35%. In addition, its integrated thermal protection, low harmonic distortion, and high linearity make it an ideal choice for a wide range of wireless applications.

Application Field

The MAX2689LEWS+T is suitable for short-range radio signal amplification and has been widely used in many industries and applications. It is especially suitable for applications in wireless audio transmission, such as in public address systems, and automotive audio systems. It is also ideal for digital modulation applications, such as GSM/GPRS, EDGE, CDMA, UMTS, 3G-WCDMA, and LTE/LTE-Advanced systems. Furthermore, it is particularly suitable for IoT applications such as home and industrial automation, machine-to-machine communication, and wireless sensor networks.

Features & Benefits

The main features and benefits of MAX2689LEWS+T are as follows:- High Output Power: The MAX2689LEWS+T can deliver up to +24 dBm of output power from a single-supply voltage of 2.7V to 5.25V. This makes it suitable for a wide range of wireless applications.- Thermal Protection: The device has an integrated thermal protection circuit which can detect and protect the amplifier from over-temperature conditions.- Low Harmonic Distortion: The amplifier has a low harmonic distortion level (<-20dBc). This ensures that the signal is not distorted and provides a cleaner signal with less noise.- High Linearity: The amplifier has a high linearity which ensures that the signal is not distorted.- Low Complexity: The amplifier has a simple and easy-to-use design which reduces development time and cost.

Working Principle

The MAX2689LEWS+T is a two-stage device. The first stage is a matched pair of power amplifier transistors which provide the gain and power. The second stage is a temperature-controlled low-noise amplifier (LNA) which provides a low noise gain. The device can be used in a multitude of applications including GSM, CDMA, UMTS, 3G-WCDMA, and LTE/LTE-Advanced systems.In the first stage, the power amplifier transistors amplify the desired signal in order to generate the desired output power. The power amplifier transistors have an associated thermal protection circuit that will shut down the amplifier if the temperature gets too high.In the second stage, the low-noise amplifier further amplifies the signal from the first stage while adding minimal noise. This ensures that the signal is not distorted by any unwanted noise.

Conclusion

The MAX2689LEWS+T is a high performance, low-cost, low-distortion RF power amplifier designed for the 900MHz ISM frequency band. It is a two-stage device, capable of delivering up to +24 dBm of output power from a single-supply voltage of 2.7V to 5.25V, supporting a RF frequency range from 868MHz to 940MHz and power efficiency of over 35%. Furthermore, its integrated thermal protection, low harmonic distortion, and high linearity make it an ideal choice for a wide range of wireless applications.

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