Date: 10-Jan-12
12730 Commonwealth Drive • Fort Myers, Florida 33913
Phone: 239-561-3311 • 800-237-3061
Fax: 239-561-1025 • www.crystek.com
CRYSTEK
CORPORATION
RECOMMENDED REFLOW SOLDERING PROFILE
217°C
200°C
260°C
150°C
90 Secs. Max.
TEMPERATURE
Ramp-Up
3°C/Sec Max.
Preheat
180 Secs. Max.
8 Minutes Max.
260°C for
10 Secs. Max.
Critical Temperature
Zone
Ramp-Down
6°C/Sec.
NOTE: Reflow Profile with 240°C peak also acceptable.
Specifications subject to change without notice.
Rev: K
PIN Function
1
2
3
4
E/D
GND
OUT
Vcc
Function pin 1 Output pin
Open
"1" level 0.7×Vcc Min
"0" level 0.3×Vcc Max
Active
Active
High Z
Tri-State Function
Dimensions inches (mm)
All dimensions are Max unless otherwise specified.
0.045 ±0.008
(1.14 ±0.20)
0.055 Typ.
(1.40 Typ.)
0.200 ±0.005
(5.08 ±0.13)
#1
#3
#2
#4
SUGGESTED PAD LAYOUT
0.071 SQ
(1.80)
0.165
(4.19)
0.200
(5.08)
0.01uF Bypass Capacitor Recommended
0.283
(7.20)
0.204
(5.02)
P/N XXXX
Frequency
XX
Denotes pad 1
XXXX=Date Code XX=Lot Code
PWR
Supply
mA
M
VM OSC.
pin 1
pin 4
pin 2
pin 3
Bypass
Cap.
O/P Load
incl Probe Cl
OUT
High Impedance
GND or "LOW"
Oscillation
OPEN or "HIGH"
GND
OUTVcc
E/D
TEST CIRCUIT
Crystek Part Number Guide
#1 Temp. Range: Blank = 0/70°C, M = -20/70°C, E = -40/85°C
#2 Symmetry: 2 = 40/60%, 9 = 45/55%
#3 Stability: (see Table 1)
#4 Frequency in MHz: 3 or 6 decimal places
Example:
C3292-44.736MHz = 5.0V, 0/70°C, 40/60%, ±50ppm, 44.736MHz
CM3991-44.736MHz = 5.0V, -20/70°C, 45/55%, ±25ppm, 44.736MHz
CE3290-44.736MHz = 5.0V, -40/85°C, 40/60%, ±100ppm, 44.736MHz
0 ±100ppm
2 ± 50ppm
1 ± 25ppm
8* ± 20ppm
*available in select frequencies -40/85
Stability Indicator
Table 1
Page 2 of 2
C X 3 X 9 X - 44.736
#1 #4#3#2
5×7 mm SMD, 5V, HCMOS/TTL
C32xx Model
0.071
(1.80)