CXOH - Crystek

Temperature Compensated
Crystal Oscillator
CXOH / CXOHV Model
14 Pin DIP, 3.3V & 5.0V, HCMOS/TTL
Voltage Trim Option
Available
Frequency Range:
Frequency Stability:
Frequency Stability vs Volt:
Frequency Stability vs Load:
Temperature Range:
Storage:
Input Voltage:
Mechecanical Trim Range:
(Option V)
Input Current:
Output:
Symmetry:
(Option Y)
Rise/Fall Time:
Output Voltage:
1 MHz to 38 MHz
±1ppm to ±5ppm
±0.5ppm Max
±0.3ppm Max
-40°C to 85°C
-45°C to 90°C
3.3V or 5.0V ±5%V
±3ppm Min
Voltage Trim Pin 1
15mA Typical, 30mA Max
HCMOS/TTL
40/60% Max @ 50% Vdd
45/55% Max
4ns Typical, 10ns Max
"0" = 10% Vdd Max
"1" = 90% Vdd Min
15pF/10TTL Max
-100 dBc/Hz
-130 dBc/Hz
-140 dBc/Hz
-145 dBc/Hz
-150 dBc/Hz
<1ppm Max per Year
Load:
Phase Noise Typ.: 10 Hz
100 Hz
1 kHz
10 kHz
100 kHz
Aging:
0.728
(18.50)
Designed to meet today's
requirements for tighter
frequency stability tolerance
while reducing unit cost.
VCTCXO Specification
Voltage Trim Pin 1:
Control Voltage:
Dimensions inches (mm)
All dimensions are Max unless otherwise specified.
*A
CRYSTEK
Freq
Part no
DC
0.157
(4.00)
0.472
(12.00)
Suggested PCB Layout
0.600
(15.24)
0.098
(2.50)
0.300
(7.62)
0.020
(0.50)
#1
ID=
#7
+
pin 14
OSC.
pin 1
0.030
(0.76)
0.150
(3.81)
Function
1
7
8
14
VT or NC
GND
OUT
Vcc
0.075
(1.90)
*A
.178
(4.50)
.197
(5.00)
OUT
pin 8
VM
0.300
(7.62)
PIN
0.360
(9.15)
mA
M
+
PWR
Supply
0.055
(1.40)
0.047
(1.20)
#8
+
0.150
(3.81)
0.157
(4.00) Min
0.300
(7.62)
#14
± 5ppm Min
(5V) 2.5V ± 2.5V
(3.3V) 1.65V ± 1.65V
Crystek Part Number Guide
O/P Load
(incl. Probe Cl)
pin 7
CXOHV - 4 B C 3 Y - 25.000
#1
#2
#3
#4
#5
#6
#7
#8
Option
Operating
Temperature
A
0°C to 50°C
B
Frequency Stability (± ppm)
1.0
2.0
2.5
3.0
4.0
5.0
-10°C to 60°C
2.0
2.5
3.0
4.0
5.0
C
-10°C to 70°C
2.0
2.5
3.0
4.0
5.0
D
-20°C to 70°C
2.0
2.5
3.0
4.0
5.0
E
-30°C to 60°C
2.0
2.5
3.0
4.0
5.0
F
-30°C to 70°C
2.0
2.5
3.0
4.0
5.0
G
-30°C to 75°C
2.0
2.5
3.0
4.0
5.0
H
-40°C to 85°C
3.0
4.0
5.0
B
C
D
E
F
P
1.5
A
Table 1
C
CRYSTEK
CORPORATION
#1
#2
#3
#4
#5
#6
#7
#8
Crystek TCXO HCMOS/TTL
V or blank = (V = Volt.Trim) (Blank = Mech. Trim)
4 or blank = Height (4 = 4.5mm) (Blank = 5.0mm)
Letter = Operating Temperature (see table 1)
Letter = Frequency Stability (see table 1)
3 or blank = Input Volt (3 = 3.3 volts) (Blank= 5V)
Y or blank = Symmetry (Y=45/55) (Blank = 40/60)
Frequency in MHz: 3 or 6 decimal places
Example:
CXOH-4BC3Y-25.000 = mech. trim, 4.5mm, -10/60, ±2.5ppm, 3.3V, 45/55%, 25.000MHz
CXOHV-4B3CY-25.000 = volt. trim, 4.5mm, -10/60,±2.5ppm, 3.3V, 45/55%, 25.000MHz
Specifications subject to change without notice.
TD-020811 Rev. H
12730 Commonwealth Drive • Fort Myers, Florida 33913
Phone: 239-561-3311 • 800-237-3061
Fax: 239-561-1025 • www.crystek.com