EURO QUARTZ
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk
11.4 x 9.6mm SMD HCMOS
DESCRIPTION
XO44 oscillators consist of a TTL/CMOS-compatible hybrid circuit
with a miniature quartz crystal packaged in a low-profile, industry-
standard package. The high quality design and materials employed
provide a highly reliable clock oscillator in a miniature package while
mass production methods ensure that the XO44 provides a cost-
effective oscillator solution.
Industry-standard hermetically-sealed package
Frequency Range 20kHz to 130MHz
Tristate (Enable/Disable) function as standard
Supply voltage range 1.8, 2.5, 3.3 or 5.0 Volts
XO44 Series Oscillators
Supply Voltage:
1.8, 2.5, 3.3 or 5.0 Volts ±5%
Frequency Range
1.8V Supply:
1.8MHz to 60.0MHz
2.5V Supply:
1.8MHz to 60.0MHz
3.3V Supply:
20.0kHz to 130.0MHz
5.0V Supply:
20.0kHz to 125.0MHz
Output Logic:
HCMOS/LSTTL
Frequency Stability*
0° to +50°C:
from ±10ppm
0° to +70°C:
from ±15ppm
-40 to +85°C:
from ±25ppm
-55° to +105°C:
from ±100ppm
Rise/Fall Time:
see table
Output Voltage:
HIGH ‘1’:
90%Vdd minimum
LOW ‘0’:
10%Vdd maximum
Output Load
CMOS:
15pF (50pF available)
TTL:
10 LSTTL loads
Duty Cycle:
50%±5% typical
Supply Current:
See table
Operating Temperature
0~50°C (Light Commercial)
0~70°C (Commercial)
-40~+85 (Industrial)
-55~+105°C (Military)
Storage Temperature:
-55~+105°C
Startup Time
20kHz to 32MHz:
5ms max.
32MHz+ to 125MHz:
10ms max.
(to reach 90% amplitude at 25±2°C)
Ageing:
±5ppm max. In first year
Phase Jitter RMS:
10ps typical
Enable Time:
100ms max.
Disable Time:
100ns max.
Tristate Function (Pad 1):
Output (Pad 3) is active if Pad 1 is not connected or a
voltage to Pad 1 is 'HIGH'. Output is high impedance
when 'LOW' or GROUND is applied to Pad 1.
* Frequency stability is inclusive of calibration tolerance at 25°C,
frequency change due to shock & vibration, ±10 supply voltage
variation and stability over temperature range.
SPECIFICATION
Frequency Range
Supply Voltage (±10%)
+1.8V
20kHz to 32MHz
32MHz+ to 50MHz
40MHz+ to 125MHz
8mA
10mA
15mA
25mA
4ns max.
10mA
14mA
16.5mA 35mA
3ns max.
25mA
30mA
35mA
40mA
2ns max.
CURRENT CONSUMPTION & RISE/FALL TIME
OUTLINE & DIMENSIONS
+2.5V +3.3V +5.0V
Rise/Fall
Time
Example:
16.000MHz XO44050UCTA
PART NUMBERING
Frequency
Series Designation XO44
Stability*
100 = ±100ppm
050 = ±50ppm
025 = ±25ppm
Output Universal
Operating Temp. Range
C = Commercial
I = Industrial
M = Military
Tristate Function
Supply Voltage
Blank = 5.0 Volts
A = 3.3 Volts
B = 2.5 Volts
C = 1.8 Volts
* For other stability requirements enter figure required.
SOLDER TEMPERATURE PROFILE