The MAX2141ETH+ from Maxim Integrated is a state-of-the-art, complete single-chip tuner solution designed specifically for digital video broadcasting-terrestrial (DVB-T) applications. This highly integrated device simplifies the design and enhances the performance of DVB-T receivers, making it an ideal choice for portable and stationary TV applications, as well as USB dongles and personal video recorders (PVRs).
The MAX2141ETH+ incorporates a low-IF tuner architecture which eliminates the need for an external IF filter. This design innovation not only reduces component count and system cost but also conserves board space, making it well-suited for compact systems. The device is capable of receiving VHF band III, UHF band IV, and band V signals, covering a wide frequency range from 174MHz to 862MHz, which ensures compatibility with a broad spectrum of broadcast standards.
With an integrated RF tracking filter, the MAX2141ETH+ provides excellent selectivity and blocks out-of-band signals, thereby improving the signal quality and reducing the likelihood of interference. The device also features a low-noise amplifier (LNA) and a variable-gain amplifier (VGA), which are critical for optimizing sensitivity and dynamic range. The onboard synthesizer with a fractional-N phase-locked loop (PLL) ensures precise frequency tuning and fast channel switching.
Maxim Integrated's MAX2141ETH+ is engineered to operate over a -40°C to +85°C temperature range, making it reliable in various environmental conditions. The device is available in a compact 5mm x 5mm, 32-pin TQFN package, allowing for a small form factor design. Additionally, it supports a 2.7V to 3.3V supply voltage range, providing flexibility in power supply design and compatibility with most modern portable and embedded systems.
Overall, the MAX2141ETH+ is an advanced and highly efficient solution for DVB-T applications that demand high performance, low power consumption, and minimal design complexity. Its combination of integration, performance, and compact size makes it a standout choice for designers looking to create the next generation of DVB-T products.
