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CXA3275Q Datasheet(PDF) 1 Page - Sony Corporation |
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CXA3275Q Datasheet(HTML) 1 Page - Sony Corporation |
1 / 22 page 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 transistor for charge pump • On-chip 4-output band switch (PNP transistor on/off) • 40-pin QFP package Applications Digital CATV tuners Structure Bipolar silicon monolithic IC Absolute Maximum Ratings (Ta = 25°C) • Supply voltage Vcc, PLLVcc –0.3 to +6.0 V IFVcc –0.3 to +6.0 V • Storage temperature Tstg –55 to +150 °C • Allowable power dissipation PD 1.58 W (when mounted on a printed circuit board) Operating Conditions • Supply voltage Vcc, PLLVcc 4.5 to 5.5 V IFVcc 4.5 to 5.5 V • Operating temperature Topr –40 to +80 °C – 1 – E00461-PS Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. CXA3275Q 40 pin QFP (Plastic) This IC has pins whose electrostatic discharge strength is weak as a high-frequency process is used for this IC. Take care when handling the IC. |
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