ECS ECS-3955M-500-B

ECS-3955M SERIES
SMD CLOCK OSCILLATOR
The ECS-3955M (5V) ia a high capacitive load
version of our minature, crystal controlled,
low current clock oscillator in an all ceramic
SMD package. The low profile package is
ideal for PC’s, portable applications and
PCMCIA cards.
FEATURES
• High capacitive load options
• Low power consumption
• Tri-State Function
• Seam welded package
• Tape & Reel (1,000 pcs STD)
PART NUMBERING GUIDE
PACKAGE TYPE
ECS-3955M
FREQUENCY (50.0 MHz)
500
–
STABILITY TOLERANCE (B=±50 PPM)
B
–
Sample Part Number: ECS-3955M-500-B
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PARAMETERS
CONDITIONS
MIN
1.800
-10
-55˚
+4.5
FREQUENCY RANGE
Operating
Storage
TEMPERATURE RANGE
SUPPLY VOLTAGE
Standard
Option (B)
Option (C)
1.8 ~ 36.0 MHz
36.1 ~ 70.0 MHz
@ 1/2 VCC Level
FREQUENCY STABILITY*
INPUT CURRENT
OUTPUT SYMMETRY
RISE AND FALL TIMES
LOAD
START-UP TIME
(IOL) (IOL)
(IOH)
ENABLE/DISABLE TIME
OUTPUT CURRENT
+5.0
40/60
VOL
VOH
HCMOS
1.8 ~ 36.0 MHz
36.0 ~ 70.0 MHz
VOL
VOH
OUTPUT VOLTAGE
ECS-3955M (5V)
TYP
50 ±4
7
MAX
70.0
+70
+125
+5.5
±100
±50
±25
30
65
60/40
ns
VCC x 0.1V
VCC x 0.9V
100
50
5
10
16
-16
ns
UNITS
MHz
˚C
˚C
V DC
PPM
PPM
PPM
mA
mA
%
V DC
V DC
pF
ms
ms
mA
mA
* 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 (Pin 2) to minimize power line noise.
PACKAGE DIMENSIONS (mm)
1.40
1
2
4
3
4.20
5.0 max.
1.4
7.5 max.
1.6 ± 0.15
2
1
2.00
0.6
3
2.6
4
PIN CONNECTIONS
#1
TRI-STATE**
#2
GND
#3
OUTPUT
#4
VCC
0.01µF
5.08 max.
Figure 1) ECS-3955M Series Top, Side and Bottom Views
5.08
ECS-3955M Standby Control Voltage
PIN #1 = OPEN
#3 = OSCILLATION
#3 = OSCILLATION
PIN #1 = +2.2V MIN
#3 = HIGH IMPEDANCE
PIN #1 = 0.8V MAX
Figure 2) 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
45
SMD OSCILLATORS