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SM3345TEW 데이터시트(PDF) 5 Page - Pletronics, Inc. |
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SM3345TEW 데이터시트(HTML) 5 Page - Pletronics, Inc. |
5 / 7 page SM33T Series 2.5 V CMOS Clock Oscillators February 2009 www.pletronics.com 425-776-1880 5 3 4 6 5 2 1 Mechanical: Inches mm A 0.098 + _0.004 2.50 + _0.10 B 0.079 + _0.004 2.00 + _0.10 C 0.039 + _0.004 1.00 + _0.10 D 1 0.008 0.20R E 1 0.028 0.70 F 1 0.004 0.10 G 1 0.031 0.80 Not to Scale 1 Typical dimensions Contacts : Gold 11.8 µinches 0.3 µm minimum over Nickel 50 to 350 µinches 1.27 to 8.89 µm Do not connect pads 5 or pad 6!!!! 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. |
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