CXA3275Q PLL/OSC/MIX IC for Digital Tuner Description The CXA3275Q is a monolithic tuner IC for single conversion system digital broadcast tuners.
This IC integrates three sets of local oscillator and mixer circuits (VHF Low Band/ VHF High Band/UHF Band), an IF amplifier and a tuning PLL onto a single chip, enabling further miniaturization of the tuner.
Features • Balanced oscillators with low-phase noise and excellent oscillation stability (UHF: 4 pins, VHF: 2 pins) • High linearity mixer and IF amplifier • IF output switchable between balanced and unbalanced • Low-phase noise PLL synthesizer (3-wire bus format) • Reference frequency programmable in 4 bits • On-chip high voltage drive trans...

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