DSC1028 Datasheet, PDF (5/7 Pages) Micrel Semiconductor – Low-Power CMOS Oscillator

DSC1028
2.8V
Low-Power CMOS Oscillator
Board Layout (recommended)
Solder Reflow Profile
260°C
217°C
200°C
150°C
25°C
60-180
Sec
Pre heat
8 min max
20-40
Sec
60-150
Sec
Reflow
Cool
Time
MSL 1 @ 260°C refer to JSTD-020C
Ramp-Up Rate (200°C to Peak Temp) 3°C/Sec Max.
Preheat Time 150°C to 200°C
60-180 Sec
Time maintained above 217°C
60-150 Sec
Peak Temperature
255-260°C
Time within 5°C of actual Peak
20-40 Sec
Ramp-Down Rate
6°C/Sec Max.
Time 25°C to Peak Temperature
8 min Max.
Package Dimensions
7.0 x 5.0 mm Plastic Package
External Dimensions
7.0±0.10 [0.276±0.004]
#4
#3
5.08 [0.2]
#3
#4
2.6 [0.102]
3.5 [0.138]
2.2 [0.087]
Recommended Land Pattern*
5.08 [0.200]
2.6 [0.102]
0.2 [0.008]
oo
oo
oo
1.4 [0.055]
#1
#2
5.0±0.10 [0.197±0.004]
0.85±0.05 [0.033±0.002]
#2 _{1.4 [0.055]} #1
0.2 [0.008]
1.2 [0.047]
No. Pin Terminal
1
Standby#
2
GND
3
Output
4
VDD
0.2 [0.008]
1.4 [0.055]
*Note: The center pad is not connected
internally and should be left un-
connected or tied to GND.
units: mm [inch]
All Rights Reserved. No part of this document may be copied or reproduced in any form without the prior written permission of Micrel, Inc. Micrel Inc. may update or make changes
to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to
implied warranties of merchantability or fitness for a particular use.
Page 5
MK-Q-B-P-D-031809-03-7