DTCXO
Digitally Thermal Compensated Crystal Oscillator
General Specification (rev1)
June 12th 2009
Electrical Parameters
Unit
Minimum
10
Typical
Maximum
Square Wave Output Version compatible CMOS
Nominal frequency range
Low output level
MHz
V
60
10% Vcc
High output level
V
90%Vcc
40%
Duty cycle at Vcc/2
-
60%
Rise time
ns
ns
5
5
Fall time
Phase noise in static conditions @ 10 MHz
@ 10 Hz offset
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
- 85
@ 100 Hz offset
- 115
- 135
- 150
@ 1 kHz offset
@ 10 kHz offset or greater
Phase noise in static conditions @ 60 MHz
@ 10 Hz offset
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
- 65
- 95
@ 100 Hz offset
@ 1 kHz offset
- 130
- 140
@ 10 kHz offset or greater
Free running mode (Vctrl pin NC)
Initial setting
ppm
ppm
ppm
ppm
ppm
ppm
± 0.5
± 0.5
± 0.05
± 0.05
± 0.5
± 2
Stability vs. temperature
Stability vs. 5 % supply voltage variation
Stability vs. 10 % load variation
Aging over first year
± 0.2
Aging over 10 year
Electrical tuning (Vctrl pin)
Relative pulling frequency range
Input impedance
ppm
Ω
± 2
10 k
0
Voltage range Option A
Voltage range Option B
VDC
VDC
5
0
10
Supply voltage (Vcc pin)
Voltage range option A
Voltage range option B
Supply current option A
Supply current option B
Start up time
VDC
Vdc
mA
mA
ms
4.75
11.4
5.25
12.6
40
20
10
5/5
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