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BU3058FV 数据表(PDF) 3 Page - Rohm |
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BU3058FV 数据表(HTML) 3 Page - Rohm |
3 / 5 page 3/4 REV. A ○Package Outline, Appearance of Marker ○Pin Function PIN No. PIN Name Function 1 XIN Crystal Input terminal 2 AVDD1 Power supply for VCXO 3 AVSS1 GND for VCXO 4 VCTRL VCXO control input terminal 5 AVDD2 Power supply for PLL-Analog 6 AVSS2 GND for PLL-Analog 7 SEL1 CLKOUT output control terminal1 8 SEL2 CLKOUT output control terminal2 9 CLK27M 27.000000MHz Output 10 TEST Test terminal with pull-down 11 CLK54M 54.000000MHz Output 12 VSS GND for PLL-Digital 13 VDD Power supply for PLL-Digital 14 CLKOUT 66.000000MHz / 74.250000MHz / 77.000000MHz / 82.000000MHz Output 15 PDB Power-down control terminal,with pull-up 16 XOUT Crystal Output terminal ●Cautions on use(BU3058FV) Basically, mount ICs to the printed circuit board for use. (If the ICs are not mounted to the printed circuit board, the characteristics of ICs may not be fully demonstrated.) Mount 0.1µF capacitors in the vicinity of the IC PINs between 2PIN (AVDD1), 3PIN (AVSS1), and 5PIN(AVDD2), 6PIN(AVSS2), and 12PIN (VSS), 13PIN (VDD) respectively. To obtain accurate frequency, capacitance (pF) need to be placed between 3PIN (AVSS1) and 1PIN (XIN), 3PIN (AVSS1) and 16PIN(XOUT). Depending on the conditions of the printed circuit board, mount an additional electrolytic capacitor between the power supply and GND terminal. For EMI protection, it is effective to put ferrite beads in the origin of power supply to be fed to BU3058FV from the printed circuit board or to insert a capacitor (of 1 or less), which bypasses high frequency desired, between the power supply and the GND terminal. For ICs with more than one power supply, it is possible that rush current may flow instantaneously due to the internal powering sequence and delays. Therefore, give special consideration to power coupling capacitance, power wiring, width of GND wiring, and routing of wiring. 3058F Lot No. SSOP-B16 |
类似零件编号 - BU3058FV |
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类似说明 - BU3058FV |
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