MAX3541 Single-Conversion TV Tuner

The MAX3541 is a complete single-conversion TV tuner designed for analog/digital terrestrial receivers and digital set-top boxes. The TV tuner operates from a +3.3V supply and consumes only 760mW.

The MAX3541 converts PAL or DVB-C signals in the 47MHz to 68MHz, 174MHz to 230MHz, and 470MHz to 862MHz frequency bands to a 36MHz intermediate frequency (IF).

The MAX3541 includes a variable-gain low-noise amplifier (LNA), a multiband tracking filter, a harmonic rejection mixer, a low-noise IF amplifier, an IF power detector, and a variable-gain IF amplifier. The MAX3541 also integrates a monolithic VCO, a resonant circuit, and a complete frequency synthesizer. This highly integrated device enables a board-level, low-power tuner without the cost and power issues of a double-conversion tuner solution.

The MAX3541 operates over the -40°C to +85°C temperature range and is available in a 48-pin, leadless flip-chip (fcLGA) package.

Key Features

Low power consumption: only 760mW (typical) when powered by +3.3V

Integrated tracking filter

Low noise figure: 4.9dB (typ.)

Tiny, 7mm x 7mm, lead-free fcLGA package

IF overload detector controls RF variable gain amplifier

I²C compatible 2-wire serial interface