Parameters
Conditions
ECS-3951M (5V)
ECS-3953M (3.3V)*
Units
MIN
TYP
MAX
TYP
MAX
Frequency Range
1.000
125.0
125.0
MHz
Temperature Range
Operating
-10
+70
+70
°C
Storage
-55
+125
+125
°C
Supply Voltage
+4.5
+5.0
+5.5
+3.3
+3.6
V DC
Frequency Stability**
Standard
-100
±40
+100
±40
+100
PPM
Option (B)
-50
+50
+50
PPM
Option (C)
-25
+25
+25
PPM
Input Current
1.0 ~ 36.0 MHz
20
15
mA
36.1 ~ 70.0 MHz
55
25
mA
70.1 ~ 100.0 MHz
60
30
mA
100.1 ~ 125.0 MHz
65
30
mA
Output Symmetry
@ ½ VCC Level
40/60
50±4
60/40
50±4
60/40
%
Rise and Fall Times
1.0 ~ 70.0 MHz
15
5
nS
70.1 ~ 125.0 MHz
5
5
nS
Logic “0” Level
VCC x 0.1V max.
Logic “1” Level
VCC x 0.9V min.
Load
HCMOS
30
15
pF
Start-Up Time
1.0 ~ 36.0 MHz
5
5
ms
36.1 ~ 70.0 MHz
10
10
ms
70.1 ~ 125.0 MHz
15
15
ms
Output Current (IOL)
(IOH)
VOL=0.5V/0.33
4
4
mA
VOL=4.5V/2.97V
-4
-4
mA
Enable/Disable Time
100
100
ns
The ECS-3951M (5V) and ECS 3953M (3.3V) Series are
miniature, crystal controlled, low current clock oscillators in a
ceramic SMD package. Package is seam welded with a metal lid.
The low profile package is ideal for today’s advanced portable
PC and instrumentation designs.
ECS-3951M/3953M Series
SMD Clock Oscillator
500 = 50 MHz
ECS-3951M/3953M
• 3.3 or 5.0V version
• Low Power Consumption
• Standby function
• Seam welded package
• Tape & Reel (1,000 pcs)
• PbFree/RoHS Compliant
ECS
3951M +5V
3953M +3.3V
A = ±100 ppm
B = ±50 ppm
C = ±25 ppm
D = ±20 ppm
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com
Part Numbering Guide: Example ECS-3951M-500-B-TR
ECS - Series - Frequency Abbreviations - Stability Tolerance - Temperature - Packaging
Request a Sample
*ECS-3953M is also compatible with a supply voltage of +3.0V DC ±0.3V
**Inclusive of 25°C tolerance, operating temperature range, input voltage change, load change, aging shock and vibration.
***An internal pullup resistor from pin 1 to 4 allows active output if pin 1 is left open.
Note: A 0.01 μF bypass capacitor should be placed between VCC (Pin 4) and GND (Pin2) to minimize power line noise.
TR =
Tape & Reel
1K/Reel
Blank = -10 ~ 70°C
M = -20 ~ +70°C
N = -40 ~ +85°C
U = -55 ~ +125°C
Figure 1) Top, Side, and Bottom views
ECS-3951M/3953M Standby Control Voltage
Pin #1 = Open***
#3 = Oscillation
Pin #1 = ±2.2V Min.
#3 = Oscillation
Pin #1 = 0.8V Max
#3 = High Impedance
Pin Connections
#1
Tri-State***
#2
Ground
#3
Output
#4
VCC
Package Dimensions (mm)
15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com
Figure 2) Land Pattern
ECS-3951M/3953M Series
SMD Clock Oscillator