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Integrated, Low-Power, Single-Conversion Silicon Tuner Meets ATSC Requirement

Fri, 01/04/2008 - 7:32am

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low-power, single-conversion silicon tunerMaxim Integrated Products' MAX3540 integrated, single-conversion television tuner for ATSC and NTSC applications meets the sensitivity and adjacent-channel guidelines specified by ATSC Recommended Practice A/74, while consuming 760 mW. The tuner integrates a tracking filter and high-linearity front-end. Additionally, it reduces power consumption by eliminating the second frequency conversion used in many other silicon tuners. Because it is a single-conversion tuner, the MAX3540 requires only a single SAW filter. Incorporating both RF and IF AGC amplifiers, this device is appropriate for televisions, set-top boxes, and USB memory sticks. It covers the full 54 MHz to 860 MHz frequency range, providing a standard, 44 MHz IF output that is compatible with almost all existing ATSC and NTSC demodulators. This device operates from a single, 3.3V supply and is fully specified over the 0°C to +85°C temperature range. The MAX3540 is available in a 7 mm × 7 mm, 48-pin flip-chip package. Prices start at $5.90 (1000-up).

Maxim Integrated Products
800-998-8800, www.maxim-ic.com

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