Clock Oscillator
C32xx/C39xx Model
5×7 mm SMD, 5V, HCMOS
0.283
(7.20)
P/N YYWW
Frequency
XX
0.205
(5.20)
0.071
(1.80)
Denotes pad 1
YYWW=Date Code XX=Lot
Code
0.055 Typ.
(1.40 Typ.)
SUGGESTED PAD LAYOUT
#1
#4
#2
#3
0.045 ±0.008
(1.14 ±0.20)
0.165
(4.19)
0.071 SQ
(1.80)
0.200 ±0.005
(5.08 ±0.13)
0.200
(5.08)
0.01uF Bypass Capacitor Recommended
Dimensions inches (mm)
All dimensions are Max unless otherwise specified.
Enable/Disable
Function pin 1
Crystek Part Number Guide
C X 3 X 9 X - 44.736MHz
Output pin
Open
"1" level 0.7×Vcc Min
"0" level 0.3×Vcc Max
Active
Active
High Z
#1
#2
#3
#4
Stability Indicator
#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)
0
2
±100ppm
± 50ppm
± 25ppm
± 20ppm
#4 Frequency in MHz: 3 or 6 decimal places
PIN Function
1
8*
1
2
3
4
E/D
Example:
*available in select frequencies -40/85
GND
OUT
Vcc
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
Table 1
TEST CIRCUIT
mA
M
OUT
RECOMMENDED REFLOW SOLDERING PROFILE
Ramp-Up
Critical Temperature
3°C/Sec Max.
pin 4
pin 3
O/P Load
incl Probe Cl
Zone
260°C
Vcc
E/D
OUT
Ramp-Down
PWR
Supply
Bypass
Cap.
6°C/Sec.
VM
OSC.
217°C
GND
200°C
pin 1
pin 2
150°C
High Impedance
GND or "LOW"
Output Pin: Active
OPEN or "HIGH"
Preheat
90 Secs. Max.
180 Secs. Max.
8 Minutes Max.
Rev: S
Date: 04-Aug-2020
Page 2 of 2
260°C for
10 Secs. Max.
Crystek Corporation reserves the right to make changes to its
products and/or information contained herein without notice.
No liability is assumed as a result of its use or application.
NOTE: Reflow Profile with 240°C peak also acceptable.
16850 Oriole Road • Fort Myers, Florida 33912
Phone: 239-561-3311 • 800-237-3061
www.crystek.com
CRYSTEK
CORPORATION
C
CRYSTEKMICROWAVE [ CRYSTEK CORPORATION ]
