전자부품 데이터시트 검색엔진 |
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CXA1742Q 데이터시트(PDF) 6 Page - Sony Corporation |
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CXA1742Q 데이터시트(HTML) 6 Page - Sony Corporation |
6 / 19 page —6— CXA1742Q 18 AGCPS 0.233 V 19 XTALOUT 20 XTALIN 2.96 V 21 GND 0 V 22 IFIN 1.25 V 23 IFPS 1.25 V 24 VCC 3.0 V 25 GND 0 V Connects an AGC integrating capacitor. Connect a crystal oscillator to form a Colpitts-type oscillator circuit. When an external oscillator is used, its signal must be connected to Pin 20. Ground. RF amplifier input. The relationship between IFIN (Pin 22) and IFPS (Pin 23) is designed so that the IC internal stray capacitance is small. Therefore, if Pins 22 and 23 are used for balance input, the common-mode rejection deteriorates. Power supply. Supplies current to the RF AMP, MIXER, OSC, and 1/2 DIVIDER circuits. Ground. Pin No. Symbol Pin voltage I/O Equivalent circuit Description DC AC resistance 24 21 10k 19 15p 25 20 147 10k 33 15 34 VREF 18 24 25 21 VREF 23 22 1.5k 1.5k |
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