ECS-3961/3963
SERIES
SMD CLOCK OSCILLATOR
The ECS-3961 (5V) and ECS-3963 (3V) is our
smallest crystal controlled low-current clock
oscillator. This subminiature, very low profile
leadless ceramic package is ideal for todays
SMD manufacturing environment. Package is
seam welded with a metal lid.
FEATURES
• 3x5 mm footprint
• SMD
• 3 & 5V versions
• Seam welded package
• Tape and Reel (1,000 pcs)
• PbFree/RoHS Compliant
PART NUMBERING GUIDE
“EXAMPLE”
MANUFACTURER
ECS
–
SERIES
3961
–
FREQUENCY (14.4 MHz)
144
–
(STABILITY TOLERANCE (A=±100 PPM)
A
Sample Part Number: ECS-3961-144-A
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PARAMETERS
FREQUENCY RANGE
FREQUENCY STABILITY**
OPERATING TEMPERATURE
STORAGE TEMPERATURE
INPUT VOLTAGE V
CC
INPUT CURRENT
OUTPUT SYMMETRY
RISE AND FALL TIMES
LOGIC “0” LEVEL
LOGIC “1” LEVEL
LOAD
START-UP
2.5 ~ 35.0 MHz
35.0 ~ 50.0 MHz
1.8 ~ 36.0 MHz
@ 1/2 V
CC
Level
V
CC
x 0.1V max.
V
CC
x 0.9V max.
15
10
15
10
pF
ms
Option (A)
Option (B)
Option (C)**
CONDITIONS
MIN
2.500
-100
-50
-25
-10
-55
+4.5
ECS-3961 (5V)
TYP
MAX
35.000
+100
+50
+25
+70
+125
+5.5
15
-
-
60/40
10
MIN
2.500
-100
-50
-25
-10
-55
+2.7
ECS-3963 (3.0V)
TYP
MAX
66.666
+100
+50
+25
+70
+125
+3.3
10
15
20
60
10
UNITS
MHz
PPM
PPM
PPM
˚C
˚C
V DC
mA
mA
mA
%
ns
+5
+3.0
40/60
50 ±4
40
50 ±4
* Inclusive of 25˚C tolerance, operating temperature range, input voltage change, load change, aging shock and vibration.
** Reduced operating temperature with option C (±25 PPM) -10˚ ~ +60˚C
*** An internal pullup resistor from pin 1 to 4 allows active output if pin 1 is left open.
PACKAGE DIMENSIONS (mm)
1.2
4
3
1
2
TR
TF
3.2
±
0.1
1 LEVEL
ECS-3961 (5V) Standby Control Voltage
PIN #1 = OPEN***
#3 = OUTPUT
#3 = OUTPUT
PIN #1 = +3.5V MIN
#3 = NO OSCILLATION
PIN #1 = 1.5V MAX
90% V
CC
1.0
1/2 V
CC
10% V
CC
0 LEVEL
0 VDC
t
T
1
5.0
±
0.12
2
1.0
±0.1
4
3
2.54
ECS-3963 (3V) Standby Control Voltage
PIN #1 = OPEN***
#3 = OUTPUT
#3 = OUTPUT
PIN #1 = +2.1V MIN
#3 = NO OSCILLATION
PIN #1 = 0.9V MAX
PIN CONNECTIONS
#1 TRI-STATE***
#2
GND
#3
OUTPUT
#4
V
CC
Figure 1) ECS-3961/3963 Series Top, Side and Bottom Views
Test Point
Figure 2) Output Waveform
2.5
V
CC
A
#4
2.3
DC Power
Supply
STANDBY
0.01µF
STANDBY
SW
1.6
1.6
CL: Including fixture and probe capacitance.
Figure 3) Test Curcuit
O.9
1.5
V
#1
GND
#2
CL
O.8
V
CC
#3
OUTPUT
1.5
Figure 4) Land Pattern
ECS, INC. INTERNATIONAL
1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
SMD OSCILLATORS
46
SMD OSCILLATORS
ECS [ ECS, INC. ]
