MAXIM MAX2165 handbook
Update: 30 September, 2023
The MAX2165 is a direct-conversion tuner IC designed for handheld digital video broadcast (DVB-H) applications. The tuner covers a 470 MHz to 780 MHz input frequency range and features an I/Q baseband interface. The MAX2165’s direct-conversion architecture eliminates the need for an IF-SAW filter, allowing for reduced bill of materials cost. The design integrates a variable-gain, low-noise amplifier (LNA); a notch filter; an RF tracking filter; a quadrature mixer; a power detector; programmable baseband lowpass channel-selection filters; baseband variable-gain amplifiers (VGA); DC offset correction circuitry; and a complete fractional-N frequency synthesizer. The part is programmable through a 2-wire I2C-compatible serial interface. The MAX2165 integrates a tuneable notch filter. This filter is designed to notch out interfering signals in the 830 MHz to 950 MHz frequency range to allow for operation in the presence of large cellular signals. Programmable baseband channel-selection filters allow for operation with 7 MHz and 8 MHz channels. Digital DC offset correction circuitry supports time-sliced operation by minimizing power-up time delay. The fractional-N synthesizer reduces VCO lock time and minimizes close-in phase noise, eliminating the need for power-hungry, phase-noise reduction algorithms. The MAX2165 is available in a tiny, 5mm x 5mm x 0.8mm, 28-pin thin QFN package with an exposed pad- dle. It is specified for operation over the -40°C to +85°C
Brand: MAXIM
File format: PDF
Size: 237 KB
MD5 Checksum: D0BFFA2F8E961E58E0ECDD08664C97ED
Publication date: 07 May, 2012
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PDF Link: MAXIM MAX2165 handbook PDF