Data Sheet

ECS-3951C/3953C
SMD CLOCK OSCILLATOR
ECS-3951C (5V) and ECS-3953C (3.3V) miniature SMD
crystal controlled, low current clock oscillator in a ceramic
SMD package.
1105 South Ridgeview Road z Olathe, KS 66062 z Phone: [phone] z Fax: [phone] z www.ecsxtal.com
PARAMETERS CONDITIONS
ECS-3951C (+5V) ECS-3953C (+3.3V)
MIN MINTYP TYPMAX MAX
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
UNITS
HCMOS
VOL=0.5V/0.33V
VOL=4.5V/2.97V
VOH
VOL
@ 50% VDD level
10% VDD to 90% level
Option C
1.8 to 30.0 MHz
1.8 to 36.0 MHz
36.1 to 80.0 MHz
30.1 to 35.0 MHz
35.1 to 50.0 MHz
50.1 to 66.0 MHz
66.1 to 80.0 MHz
Standard
Option B
Standard
Extended (N Option)
Startup time
Output Current
Enable/Disable Time
"1" level
"0" level
Input Current
Frequency Range
Operating Temperature
Storage Temperature
Supply Voltage
Frequency Stability *
Output Symmetry
Rise and Fall Times
Output Load
1.0001.000
0
-40
-55
+4.5
90% * Vcc 90% VDD90% VDD
MHz
°C
°C
°C
VDC
ppm
ppm
ppm
mA
mA
mA
mA
%
%
ns
VDC
VDC
pF
ns
ms
ms
mA
mA
80.000
+70
+85
+125
+5.5
± 100
+3.3
0
90% * Vcc
+70
+85
+125
+3.6
± 100
± 50
± 25
8
8
12
15
30
40/60
15
125.000
15
150
4
-4
5
10
-40
-55
+3.0
± 50
± 25
10
15
30
30
50
40/60
10
10% * Vcc 10% * Vcc
15
100
5
10
4
-4
DIMENSIONS (mm)
** 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
* Note: Inclusive of 25°C tolerance, operating
temperature,input voltage change, load change,
shock and vibration.
Figure 1) Top, Side and Bottom views Figure 2) Suggested Land Pattern
PART NUMBERING GUIDE: Example ECS-3953C-500-B
Pin Connections
Tri-State Control Voltage
Pin #1
Pin #2
Pin #3
Pin #4
Pad 1
Open
Vcc x 0.9 Min.
Vcc x 0.1 Max.
Oscillation
No Oscillation
Oscillation
Pad 3
 3.3 or 5.0V version
 5 x 7 mm Footprint
 Low power consumption
 RoHS Compliant
(Note 7 Exemption)
ECS - Series - Frequency Abbreviation - Stability Temperature
3951C = +5.0V
3953C = +3.3V
500 = 50.000 MHz
See Frequency
Abbreviations
Blank = ± 100 ppm
B = ± 50 ppm
C = ± 25 ppm
Blank = 0 ~ +70°C
M = -20 ~ +70°C
N = -40 ~ +85°C
Tri-State **
Ground
Output
Vcc
+5.0