ECS-300CX
SERIES DUAL OUTPUT CMOS CLOCK OSCILLATOR
The ECS-300CX utilizes a built in divider
circuit to provide a second divided output.
The CMOS based oscillator features low
current consumption in a standard 8-pin
DIP package.
FEATURES
• Low current consumption
• Built in divider circuit
• 8-pin DIP package
• PbFree/RoHS Compliant
STANDARD FREQUENCIES
PART NUMBERING GUIDE
SERIES
ECS-300CX
–
12.000, 12.288, 12.800, 14.31818, 14.7456,
15.9744, 16.000, 16.384, 17.734476, 18.432,
19.6608, 20.000, 24.000, 24.576, 30.000
AND 32.000 MHz
FREQUENCY (12.000 MHz)
120
Sample Part Number: ECS-300CX-120
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PARAMETERS
CONDITIONS
Primary Output
Divided Output*
All Conditions
FREQUENCY RANGE
FREQUENCY STABILITY
OPERATING TEMPERATURE
STORAGE TEMPERATURE
INPUT VOLTAGE (VCC)
INPUT CURRENT
MINIMUM
12.000
48.875 KHz
-10˚
-55˚
+3.0V
Primary Output
Divided Output
OUTPUT SYMMETRY
TYPICAL
MAXIMUM
32.000
16.000 MHz
±100*
+70˚
+125˚
+5.5V
20
60/40
52/48
15
VCC x 0.1
+5.0V
40/60
48/52
RISE AND FALL TIMES
OUTPUT VOLTAGE
12.000
30.000
12.000
30.000
OUTPUT LOAD
START UP TIME
VOL
VOH
~ 24.576
~ 32.000
~ 24.576
~ 32.000
UNITS
MHz
PPM
PPM
˚C
˚C
V DC
mA
%
%
ns
V DC
V DC
pF
pF
mS
mS
VCC x 0.9
MHz
MHz
MHz
MHz
50
15
1.5
2.0
*See Possible Frequency Divisions Table for example of divided frequencies.
POSSIBLE FREQUENCY DIVISIONS BY PART NUMBER
ECS PART NUMBER
ECS-300CX-120
ECS-300CX-163
ECS-300CX-320
fo/2 n (Divided Output) PIN 2
1/2 4
1/2 5
1/2 6
6.000 MHz 3.000 MHz 1.500 MHz
750 KHz
375 KHz
187.5 KHz
8.192 MHz 4.096 MHz 2.048 MHz 1.024 MHz 512 KHz
256 KHz
16.000 MHz 8.000 MHz 4.000 MHz 2.000 MHz 1.000 MHz
500 KHz
fo CLOCK PIN 1
12.000 MHz
16.384 MHz
32.000 MHz
1/2 1
PIN
#1
#2
#3
#4
#5
#6
#7
#8
DIMENSIONS (mm)
7.0 max.
12.8 max.
8 7 6 5
2 3 4
2.5 5.08
min. max.
Ø1.6
0.8
7.62±0.3
1/2 3
CONNECTIONS
OUTPUT
DIVIDED OUTPUT
STANDBY
GND
A (Divider selection)
B (Divider selection)
C (Divider selection)
V CC
Figure 2) Pin Connections
0.6
max.
2.54±0.25
0.5±0.15
Figure 1) ECS-300CX Top and Side views
ST
VDD
GND
Input
Divider Selection
C
B
A
X
X
X
L
L
L
L
L
H
L
H
L
L
H
H
H
L
L
H
L
H
H
H
L
H
H
H
OUTPUT
0~15°
1/2 7
1/2 8
93.75 KHz 46.875 KHz
128 KHz
64 KHz
250 KHz
125 KHz
Output
ST
L
H
H
H
H
H
H
H
H
PIN 1(Primary Output)
fo
fo
fo
fo
fo
fo
fo
fo
L
clock
clock
clock
clock
clock
clock
clock
clock
PIN 2(Divided Output)
L
fo 1/21 clock
fo 1/22 clock
fo 1/23 clock
fo 1/24 clock
fo 1/25 clock
fo 1/26 clock
fo 1/27 clock
fo 1/28 clock
Figure 4) Divided Output Selection Table
BUFFER
OSCILLATOR
F
f
DIVIDER
Figure 3) ECS-300CX Block Diagram
SELECTOR
1
1/2 2
D
8
(F1/2-F1/2 )
A B C
SELECT
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
OSCILLATORS
38
OSCILLATORS