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SM7645HW 数据表(PDF) 6 Page - Pletronics, Inc. |
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SM7645HW 数据表(HTML) 6 Page - Pletronics, Inc. |
6 / 9 page SM76H Series 2.5 V CMOS Clock Oscillators March 2008 www.pletronics.com 425-776-1880 6 Mechanical: Inches mm Label: Laser marked on the ceramic package metal cover FR4 PCB Base: Solder masked All via holes tented on bottom Copper Clad ½ oz. Typical Gold plated 0.02 μinch (0.5 μm) Pin 3 Ground plane is typical Not to scale 1 Typical dimension A 0.324 +_0.003 8.23 +_0.07 B 0.356 +_0.005 9.04 +_0.13 C 0.135 +_0.005 3.43 +_0.13 D1 0.062 1.57 E1 0.050 1.27 F1 0.050 1.27 G1 0.059 1.50 H1 0.020 0.51 J1 0.040 1.02 K1 0.200 5.08 Pad Function Note 1 Output Enable/Disable When this pad is not connected the oscillator shall operate. When this pad is logic low the output will be inhibited (high impedance state.) Recommend connecting this pad to V CC if the oscillator is to be always on. 2 Ground (GND) 3 Output 4 Supply Voltage (V CC) Recommend connecting appropriate power supply bypass capacitors as close as possible. Layout and application information For Optimum Jitter Performance, Pletronics recommends: • a ground plane under the device • no large transient signals (both current and voltage) should be routed under the device • do not layout near a large magnetic field such as a high frequency switching power supply • do not place near piezoelectric buzzers or mechanical fans. |
类似零件编号 - SM7645HW |
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类似说明 - SM7645HW |
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