ECS-3951C/3953C
SMD Clock Oscillator
The ECS-3951C (5V) and ECS-3953C (3.3V) miniature SMD
crystal controlled, low current clock oscillator in an all ceramic
SMD package.
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Obsolete/End of Life Date 01/08/2021
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
ECS-3951C/3953C
Parameters
ECS-3951C (+5V)
Conditions
MIN
Frequency Range
Operating
Temperature
3.3 or 5.0V version
5 x 7 mm Footprint
Low Power Consumption
RoHS Compliant (Note 7
Exemption)
1.000
125.000
MHz
0
+70
°C
Extended (N Option)
-40
+85
-40
+85
°C
+5.0
+125
-55
+5.5
+3.0
+3.3
+125
°C
+3.6
VDC
Standard
±100
±100
PPM
Option B
±50
±50
PPM
Option C
±25
±25
PPM
1.8 ~ 30.0 MHz
10
8
mA
30.1 ~ 35.0 MHz
15
8
mA
35.1 ~ 50.0 MHz
30
12
mA
50.1 ~ 66.0 MHz
30
15
mA
66.1 ~ 80.0 MHz
50
30
%
@50% VDD Level
40/60
40/60
%
10% VDD to 90% Level
10
15
ns
VOL
10%* VCC
10%* VCC
VDC
“0” Level
“1” Level
VOH
Output Load
Output Current
Units
+70
-55
Startup Time
MAX
80.000
+4.5
Rise and Fall Times
TYP
0
Supply Voltage
Output Symmetry
MIN
1.000
Storage Temperature
Input Current
ECS-3953C (+3.3V)
MAX
Standard
Frequency Stability*
•
•
•
•
TYP
90%* VCC
90%* VCC
VDC
HCMOS
15
15
pF
1.8 ~ 36.0 MHz
5
5
ms
36.1 ~ 80.0 MHz
10
10
ms
VOL=0.5V/0.33V
4
4
mA
VOL=4.5V/2.97V
-4
-4
mA
100
150
ns
Enable/Disable Time
* Note: Inclusive of 25°C tolerance, operating temperature, input voltage change, load change, shock and vibration.
Part Numbering Guide: Example ECS-3951C-500-B-TR
ECS
ECS
-
Series
3951C +5V
3953C +3.3V
-
Frequency Abbreviations
500 = 50 MHz
-
Stability Tolerance
Blank = ±100 ppm
B = ±50 ppm
C = ±25 ppm
- Temperature
Blank = 0 ~ 70°C
M = -20 ~ +70°C
N = -40 ~ +85°C
-
Packaging
TR = Tape & Reel
1K/Reel
15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com
ECS-3951C/3953C
SMD Clock Oscillator
Package Dimensions (mm)
Figure 2) Land Pattern
Figure 1) Top, Side, and Bottom views
Pin Connections
Tri-State Control Voltage
#1
Tri-State**
Pad 1
Pad 3
#2
Ground
Open
Oscillation
#3
Output
VCC x 0.9 Min.
Oscillation
#4
VCC
VCC x 0.1 Max.
No Oscillation
** Note: Internal pullup resistor from pin 1 to 4
allows active output if pin 1 is left open
ECS-3953C is also compatible with a supply
voltage of +3.0V DC ±0.3V
15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com
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