SM Crystal Oscillator
Fixed Frequency Crystal Oscillator
•
•
•
•
TTL and CMOS compatible output
Tight symmetry 45 to 55% available
Typical 5.0 x 3.2 x 1.2mm ceramic SMD package
Complies with Directive 2002/95/EC (RoHS Compliant)
PO321
Outline Drawing
Specifications
Frequency Range:
Operating Temperature:
0.3456MHz ~ 125.00MHz
-10°C ~ +60°C
-20°C ~ +70°C
-40°C ~ +85°C
Storage Temperature:
Frequency Stability:
-55°C ~ +125°C
±50
ppm
±25
ppm
±20
ppm
Supply Voltage:
5.0V
DD
3.3V
DD
2.5V
DD
Supply Current:
0.3456MHz ~ 1.5MHz
1.5MHz ~ 20MHz
20MHz ~ 50MHz
50MHz ~ 75MHz
> 75MHz
Output Level:
Output Waveform:
5.0
7
10
30
40
N/A
3.3
5
7
20
30
30
5
7
-H
-E
-C
-C
-E
-H
2.5 (V
DD
)
(mA)
(mA)
-B
-C
-L
15 (mA)
20 (mA)
25 (mA)
90% V
DD
10% V
DD
-B
-R
-K
-G
2.5 (V
DC
)
10 (nSec)
6
3
3
(nSec)
(nSec)
(nSec)
All dimensions are in mm
Pin
#1
#2
#3
#4
Connection
NC or E/D
Ground
Output
Supply V
DD
Output High (Logic “1”)
Output Low (Logic “0”)
TTL
TTL/50pF
CMOS/15pF
CMOS/50pF
Marking:
Line 1: Frequency in MHz
Line 2: Date Code
Transition Times:
0.3456MHz ~ 20MHz
20MHz ~ 50MHz
50MHz ~ 75MHz
> 75MHz
Symmetry or Duty Cycle (%):
Start-Up Time:
Tri-State Function:
(Input to Pin #1)
Absolute Clock Period Jitter:
Note:
1.
2.
3.
5.0
8
5
2
N/A
3.3
10
6
3
3
45 ~ 50
8 mSec max.
-T
40 pSec
Ordering Information
Product Code + Operating Temperature Code +
Stability Code + Supply Voltage Code + Output
Waveform Code + Tri-State Code or None +
Frequency.
i.e. PO321CHEKT-40.0MHz
With Tri-State
Other frequencies, stabilities, and operating temperature ranges available. Consult VTC
Support for specific requirements.
Not all combinations of the above, stabilities, and temperature ranges are available. Consult
VTC Support if your requirement is not standard.
All specifications subject to change without notice.
Phone: +86 (10) 5820-3910
Fax: +86 (10) 5820-3915
E-mail: sales@vanlong.com
Web: http://www.vanlong.com
©
2007 by Vanlong Technology Co., Ltd.
PO321
Embedded System
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