EXO-3
CMOS Crystal Oscillator
■Features
¡Since it has a frequency dividing function, it is able to obtain a frequency division of 1/2-1/2 8 (1/256).
¡The symmetry of frequency divided output is within 50 plus/minus 2%.
¡The oscillation start time has the fast starting characteristic of being 1.5msec. or less.
¡The pin arrangement is DIP 8PIN.
■Specifications
Item |
Type |
EXO-3 |
|
||
Frequency Range |
|
12~24.576MHz |
Standard Frequency |
|
Table 1 |
Frequency Stability |
|
± 100× 10–6 |
Operating Temperature Range |
|
-10~+70: |
Storage Temperature Range |
|
-40~+85: |
Supply Voltage |
|
5V± 0.5V |
Current |
|
20mA MAX. |
Load |
|
50pF |
Output Level |
|
VOH : VDD -0.5V/VOL : 0.5V MAX. |
Output Symmetry |
|
40~60% |
Rise Time/Fall Time |
|
15ns MAX. |
Start-up Time |
|
1.5ms MAX. |
Vibration |
|
10~55Hz Amplitude 1.5mm, 50~2000Hz Amplitude 20G Cycle 1 minute, 3 direction, 1 hour each |
Shock |
|
1000G |
Weight |
|
0.6g |
|
|
|
■Table 1
Original Frequencies
Frequency (MHz)1/20
12.000 |
17.734476 |
|
|
12.288 |
18.432 |
|
|
12.800 |
19.0909 |
|
|
14.31818 |
19.200 |
|
|
14.500 |
19.6608 |
|
|
14.7456 |
20.000 |
|
|
14.9105 |
20.48 |
|
|
15.000 |
21.47727 |
|
|
15.360 |
22.000 |
|
|
15.9744 |
22.1184 |
|
|
16.000 |
24.000 |
|
|
16.128 |
24.576 |
|
|
16.257 |
|
|
|
16.384 |
|
|
|
■Pin connection
(Divider Select)
VDD C B A
8 7 6 5
EXO3 5E 16.000M KSS JAPAN
|
1 |
|
2 |
|
3 |
|
4 |
|
|
F |
D |
ST GND |
(OUTPUT)
1.F Outputs the original frequency (fo) of the internal quartz crystal.
2.D Outputs the frequency of
programmed dividing ratio (fo/2n).
3.ST Possible to be oscillated when set to HIGH level and stopped in oscillation when set to LOW level. when this function is not needed, be sure to set the STANDBY pin to the HIGH level.
4.GND 5.A
6.B Used to program the divid-
7.C ing ratio for the original frequency.
8.VDD Supply voltage
■Settings of the frequency division output
|
|
Input |
|
Output |
|||
|
|
|
|
|
|
|
|
|
Select |
|
ST |
F |
D |
||
|
|
|
|
|
Original |
Divided |
|
|
|
|
|
|
|||
C |
|
B |
|
A |
|
Frequency |
Wave form |
|
|
|
|
|
|
|
|
L |
|
L |
|
L |
H |
fo clock |
fo ·1/2 clock |
|
|
|
|
|
|
|
|
L |
|
L |
|
H |
H |
fo clock |
fo ·1/22 clock |
|
|
|
|
|
|
|
|
L |
|
H |
|
L |
H |
fo clock |
fo ·1/23 clock |
|
|
|
|
|
|
|
|
L |
|
H |
|
H |
H |
fo clock |
fo ·1/24 clock |
|
|
|
|
|
|
|
|
H |
|
L |
|
L |
H |
fo clock |
fo ·1/25 clock |
|
|
|
|
|
|
|
|
H |
|
L |
|
H |
H |
fo clock |
fo ·1/26 clock |
|
|
|
|
|
|
|
|
H |
|
H |
|
L |
H |
fo clock |
fo ·1/27 clock |
|
|
|
|
|
|
|
|
H |
|
H |
|
H |
H |
fo clock |
fo ·1/28 clock |
|
|
|
|
|
|
|
|
– |
|
– |
|
– |
L |
L |
L |
|
|
|
|
|
|
|
|
■Outline
EXO-3 |
|
|
|
|
|
|
|
12.8MAX |
|
|
|
|
|
8 |
7 |
6 |
5 |
|
|
|
|
|
|
|
7.0MAX |
|
|
1 |
2 |
3 |
4 |
|
|
7.62± 0.3 |
|
φ |
1.6 |
|
|
|
|
|
|
|
0.51MIN |
5.08 |
MAX |
|
|
|
|
|
2.5 |
MIN |
0.6MAX |
|
|
|
|
|
||
1.524 |
|
2.54± 0.25 |
|
|
0~15° |
|
|
|
|
(mm) |
|||
0.5± 0.15 |
|
|
|
|
|
|
|
|
|
|
|
|
Dimensions(mm) |