ECS-3955M Series
SMD Clock Oscillator
The ECS-3955M (5V) is a high capacitive load version of our
miniature, crystal controlled low current clock oscillator in a
ceramic SMD package. The low profile package is ideal for PC’s,
portable applications and PCMCIA cards.
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OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
ECS-3955M
Parameters
Frequency Range
Temperature Range
Supply Voltage
Standard
Frequency Stability*
Option (B)
Option (C)
•
•
•
•
•
Input Current
High capacitive load
options
Low Power Consumption
Tri-State Function
Seam welded package
Tape & Reel (1,000 pcs
STD)
1.8 ~ 36.0 MHz
36.1 ~ 70.0 MHz
@ ½ VCC Level
Output Symmetry
@ ½ VCC Level
(T Option)
40/60
45/55
7
VOL
Output Voltage
VOH
Load
Start-Up Time
36.0 ~ 70.0 MHz
Output Current (IOL)
(IOH)
Enable/Disable Time
VOL
VOH
100
10
16
-16
mS
mA
mA
ns
HCMOS
1.8 ~ 36.0 MHz
VCC x 0.9V
50
5
V DC
pF
mS
VCC x 0.1V
Operating
Storage
Conditions
ECS-3955M (5V)
MIN
1.800
-10
-55
+4.5
+5.0
TYP
MAX
70.000
+70
+125
+5.5
±100
±50
±25
30
65
40/60
45/55
Units
MHz
°C
°C
V DC
PPM
PPM
PPM
mA
mA
%
%
nS
V DC
Rise and Fall Times
* Inclusive of 25°C tolerance, operating temperature range, input voltage change, load change, aging shock and
vibration.
Part Numbering Guide: Example ECS-3955M-500-B-TR
ECS
-
Series
-
Frequency Abbreviation - Stability Tolerance -
Temperature -
Output Symmetry -
Packaging
ECS
3955M
(5x7mm, +5V)
500 = 50 MHz
A = ±100 ppm
B = ±50 ppm
C = ±25 ppm
D = ±20 ppm
Blank = -10 ~ 70°C
M = -20 ~ +70°C
N = -40 ~ +85°C
U = -55 ~ +125°C
Blank = 60/40
T = 45/55
TR = Tape & Reel
1K/Reel
15351 West 109
th
Street
|
Lenexa, KS 66219
|
Phone: 913.782.7787
|
Fax: 913.782.6991
|
www.ecsxtal.com
ECS-3955M Series
SMD Clock Oscillator
Package Dimensions (mm)
Figure 1)
Top, Side, and Bottom views
Figure 2)
Land Pattern
Pin Connections
#1
#2
#3
#4
Tri-State**
Ground
Output
VCC
ECS-3955 Standby Control Voltage
Pin #1 = Open
Pin #1= +2.2V Min
Pin #1 = 0.8V Max
#3 = Oscillation
#3 = Oscillation
#3 High Impedance
** 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 Ground
(Pin 2) to minimize power line noise.
15351 West 109
th
Street
|
Lenexa, KS 66219
|
Phone: 913.782.7787
|
Fax: 913.782.6991
|
www.ecsxtal.com