CXOH / CXOHV Model
14 Pin Dip,
3.3V & 5V, HCMOS/TTL
Frequency Range:
Frequency Stability:
Freq. Stability vs Volt:
Freq. Stability vs Load:
Temperature Range:
Storage:
Input Voltage:
Mech. Trim. Range:
(Option V)
Input Current:
Output:
Symmetry:
(Option Y)
Rise/Fall Time:
Output Voltage:
Load:
Phase Noise Typ.:
10Hz
100Hz
1KHz
10KHz
100KHz
Aging:
.720
(18.30)
1MHz to 38MHz
±1ppm to ±5ppm
±0.5ppm Max
±0.3ppm Max
ee
Fr
ad
-40°C to 85°C
Le oHS ant
R pli
-55°C to 120°C
m
Co
3.3V or 5V ± 5%
±3ppm Min
Voltage Trim Pin 1
15mA Typ, 30mA Max
HCMOS/TTL
Designed to meet today's
40/60% Max @ 50% Vdd
requirements for tighter
45/55% Max
frequency stability tolerance
4ns Typ, 10ns Max
while reducing unit cost.
"0" = 10% Vdd Max
"1" = 90% Vdd Min
VCTCXO Specification
15pF/10TTL Max
-100dBc/Hz
Voltage Trim Pin 1:
± 5ppm Min
-130dBc/Hz
Control Voltage:
(5V) 2.5V ± 2.5V
-140dBc/Hz
(3.3V) 1.65V ± 1.65V
-145dBc/Hz
-150dBc/Hz
<1ppm Max/Yr
Temperature Compensated
Crystal Oscillator
Voltage Trim Option
Available
CXOH
*A
.472
(12.00)
.098
(2.50)
.020
(0.50)
.157
(4.00)
.600
(15.24)
CRYSTEK
Freq
Part no
DC
#1
#7
Suggested PCB Layout
.300
(7.62)
.051
(1.30)
.150
(3.81)
.150
(3.81)
.360
(9.14)
.300
(7.62)
.030
(0.76)
PIN
1
7
8
14
Function
VT or NC
GND
OUT
Vcc
.178
(4.50)
.197
(5.00)
ID=
.300
(7.62)
.157
(4.00) Min
.039
(1.00)
.075
(1.90)
*A
#14
#8
Dimensions inches (mm)
All dimensions are Max unless otherwise specified.
OUT
mA
M
pin 14
Vdd
OUT
pin 8
OSC.
Crystek Part Number Guide
PWR
Supply
O/P Load
incl Probe Cl
CXOHV - 4 B C 3 Y - 25.000
#1
#2
#3
#4
#5
#6
#7
#8
VM
pin 1
Option
GND
pin 7
A
B
C
D
E
F
G
H
Operating
Temperature
0°C to 50°C
-10°C to 60°C
-10°C to 70°C
-20°C to 70°C
-30°C to 60°C
-30°C to 70°C
-30°C to 75°C
-40°C to 85°C
Freq. Stability (± ppm)
1.0
1.5
2.0
2.0
2.0
2.0
2.0
2.0
2.0
P
A
B
2.5
2.5
2.5
2.5
2.5
2.5
2.5
C
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
D
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
E
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
F
#1 Crystek TCXO HCMOS/TTL
#2 V or blank = (V = Volt.Trim) (Blank = Mech. Trim)
#3 4 or blank = Height (4 = 4.5mm) (Blank = 5.0mm)
#4 Letter = Operating Temperature (see table 1)
#5 Letter = Frequency Stability (see table 1)
#6 3 or blank = Input Volt (3 = 3.3 volts) (Blank= 5V)
#7 Y or blank = Symmetry (Y=45/55) (Blank = 40/60)
#8 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
Table 1
24
Specifications subject to change without notice.
TD-020811 Rev. E
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