QUARTZ
EURO
XOK91 Series Oscillators
7 x 5mm Low Power Consumption Clock Oscillator
FEATURES
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Industry-standard 7.0mm x 5.0mm package
Frequency Range 10MHz to 50MHz
Low supply current <1.7mA at 1.8V supply
Supply voltage range, 1.8V, 2.5V or 3.3Volts
Tristate function to conserve power
OUTLINE & DIMENSIONS
DESCRIPTION
XOK91 oscillators are ideal for battery operated portable or hand-
held consumer electronic devices where small size and low supply
current consumption is essential. A XOK53 oscillator at 27MHz and
1.8 Volts supply consumes less than 1.7mA in operating mode and
less than 2 micro Amps in disabled mode. The oscillator is available
with supply voltage at 1.8, 2.5 or 3.3 Volts.
SPECIFICATION
Frequency Range:
Frequency Stability
Commercial:
Industrial:
Output Logic:
Rise/Fall Time:
Fanout:
10.0MHz to 50.0MHz
±25ppm to ±100ppm 0° to +70°C
±25ppm to ±100ppm -40° to +85°C
HCMOS
4ns typical (10% to 90%Vdd)
12mA typical (+3.0V)
Symmetry:
Start-up Time:
Load:
45% minimum, 55% maximum
10ms typical (Vdd reaches 1.62V)
15pF
Voltage Sensitivity:
Period Jitter (RMS)
±0.8ppm typical (10%Vdd variation)
2.1ps typical with capacitive
decoupling between Vdd and Gnd.
Supply Voltage (±10%)
Supply Voltage
Dependant Parameters
+1.8V
+3.3V
+2.5V
Output Voltage HIGH ‘1’: +1.40Vmin. +2.0Vmin. +2.4Vmin.
Output Voltage LOW ‘0’:
+0.2Vmax. +0.3Vmax. +0.4Vmax.
SOLDER TEMPERATURE PROFILE
10.000MHz 0.66mA
0.96mA
1.28mA
1.51mA
1.86mA
2.17mA
2.35mA
2.74mA
3.26mA
3.90mA
1.42mA
1.82mA
2.12mA
2.58mA
3.00mA
3.25mA
3.77mA
4.48mA
4.95mA
13.500MHz 0.88mA
16.000MHz 1.05mA
20.945MHz 1.34mA
25.000MHz 1.54mA
27.000MHz 1.69mA
30.000MHz 1.93mA
38.000MHz 2.27mA
50.000MHz 2.60mA
Current
Consumption
mA typical
Tristate (Pad 1 grounded): 2uA typical 4uA max. (oscillator is off)
PART NUMBERING
Example: 27.000MHz XOK91050UCTC
Frequency
Series Designation XOK91
Stability
100 = ±100ppm
050 = ±50ppm
025 = ±25ppm
Output Universal
Operating Temp. Range
C = Commercial
(0°~70°C)
PHASE NOISE
Offset
dBc/Hz
100Hz
-80
1kHz
-110
10kHz
-130
100kHz
-138
1MHz
-145
NOTES
Pad 1 Options:
Pad 1 connected to ground, output disabled
No connection/Logic HIGH, output enabled
Disable time 10ms typical
Enable time 10ms typical
±5ppm per year max.
I = Industrial
(-40°~+85°C)
Tristate Function
Supply Voltage
A = 3.3 Volts
Ageing:
ESD Protection:
Packaging:
2000V max., human body model
16mm tape, 8mm pitch. 1000 pieces/reel
B = 2.5 Volts
C = 1.8 Volts
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