MAX7042ATJ+

Product Overview

MAX7042ATJ+ from Analog Devices / Maxim Integrated is a low-power FSK superheterodyne receiver. This RF receiver entry is prepared for engineering and sourcing teams that need a practical summary of the receiver architecture, operating band and interface considerations.

The description below focuses on receiver function, RF band, modulation support, power/interface notes and supply-chain usage for BOM sourcing.

Key Features

• Manufacturer: Analog Devices / Maxim Integrated
• Part Number: MAX7042ATJ+
• Device Type: low-power FSK superheterodyne receiver
• Receiver Architecture: Fully integrated low-power CMOS superheterodyne RF receiver
• Supported Frequencies: 308 MHz, 315 MHz, 418 MHz and 433.92 MHz
• Modulation: FSK data reception
• Data Rate: Up to 66 kbps NRZ / 33 kbps Manchester
• Sensitivity: Better than -110 dBm FSK sensitivity class
• Supply Class: Operates from 3.3 V or 5 V supplies and down to 2.4 V
• Package / Case: TQFN package family, ordering suffix ATJ
• Design Notes: Set frequency components and baseband data slicing for the target regional channel and modulation format.

Applications

Key fobs, RKE, security products, remote sensors and low-power FSK data receivers in 308/315/418/433.92 MHz bands.

Sub-GHz FSK receiver designs that need good sensitivity and short startup time.

Quality & Sourcing

Antrex Electronics can support sourcing for MAX7042ATJ+ through available stock checks, BOM consolidation and alternative-lot checking. For RF receiver ICs, lot/date code, package condition, moisture sensitivity handling and original labeling should be checked before shipment.

For project builds or shortage support, Antrex Electronics can coordinate visual inspection, packaging verification and third-party electrical or authenticity testing when required. This helps buyers manage risk when sourcing discontinued, legacy or hard-to-find RF receiver parts.