Introducing the LNBH23PQTR from STMicroelectronics

The LNBH23PQTR is a cutting-edge, monolithic voltage regulator and interface IC designed specifically for supplying and controlling the voltage to the Low Noise Block (LNB) in satellite receiver systems. Manufactured by STMicroelectronics, a global leader in semiconductor solutions, this product stands out for its high level of integration, reliability, and efficiency.

Key Features

• DiSEqC 2.x Compliant: The LNBH23PQTR fully supports DiSEqC 2.x communication protocols, allowing for bi-directional communication between the satellite receiver and the LNB, which is essential for satellite dish positioning and channel selection.
• Adjustable Output Voltage: It offers an adjustable output voltage in the range of 13V to 18V, which is selectable via the I2C interface, ensuring compatibility with a wide range of LNBs.
• High Efficiency: Designed with efficiency in mind, the LNBH23PQTR includes a step-up converter with a low RDS(on) integrated power MOSFET, minimizing power loss and heat generation.
• Tone Oscillator & Pre-Distortion: An integrated 22kHz tone oscillator with a programmable prescaler and a pre-distortion circuit enables the device to compensate for cable losses, ensuring clear signal transmission.
• I2C Interface: The device can be easily configured and monitored using the industry-standard I2C communication interface.
• Overcurrent Protection: The LNBH23PQTR is equipped with robust overcurrent protection, safeguarding the LNB from potential damage caused by overcurrent conditions.
• Thermal Protection: Thermal shutdown protection is included to prevent overheating, ensuring long-term reliability and safety.

Applications

The LNBH23PQTR is ideal for use in a variety of satellite receiver applications, including:

• Satellite set-top boxes
• Direct broadcast satellite (DBS) applications
• Personal video recorders (PVR)
• High-definition television (HDTV)

With its robust design, the LNBH23PQTR from STMicroelectronics is an excellent choice for designers looking to create high-performance, reliable satellite receiver systems. Its advanced features and protections ensure that it can handle the demanding requirements of modern satellite communication with ease.