300MHz to 450MHz, low-power ASK receiver ensures superb receive sensitivity over automotive temperature range
Maxim introduces the MAX7034 superheterodyne receiver. Requiring a few components to implement a complete receive-chain solution in automotive and consumer applications.
The architecture of the MAX7034 greatly simplifies implementation in any 300MHz to 450MHz RF system. The input impedance of the LNA can be adjusted by varying the off-chip degeneration inductor, allowing it to accommodate a wide range of antenna designs.
To further enhance flexibility, the center frequency of the fully-differential, image-rejection mixer can be set to 315MHz, 375MHz, or 433MHz. Additionally, the integration of image rejection eliminates the need for an external SAW filter in many applications, thus increasing sensitivity, simplifying the antenna-matching network, saving board space, and reducing cost.
The MAX7034 operates from a single 5V supply, and draws less than 3.0µA in shutdown mode and only 6.7mA in receive mode. Fully specified over the -40°C to +125°C automotive temperature range, it is available in a 28-pin TSSOP package.
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