DIGITAL TCXO
DIP 14 STRATUM 3 DIGITAL (VC) TCXO, TU045A AND TY045A SERIES
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FEATURES:
− Fully meeting free run frequency accuracy and 24 hours maximum frequency drift requirements for
STRATUM 3 according to Telecordia GR-1244-CORE*
− Very low power consumption suitable for portable and/or battery operated equipment
ELECTRICAL SPECIFICATION**
PARAMETER
Supply voltage, nom.
SYMBOL
CONDITIONS
VALUE
UNIT
V
Vs
Vs 5%
3.3
5.0
HCMOS / LVCMOS Supply current, max. Is
CLIPPED SINWAVE
Vs, nom. / Ta=25°C
12.0 to 20.0
2.0 to 5.0
10.000 to 40.000
4.6
mA
Frequency, nom.
fo
-
MHz
ppm
Overall frequency stability over 10 years
of operation including Initial Frequency
Calibration
Ta=-40°C to + 85°C
or
Ta= 0°C to + 70°C
Ta=-40°C to + 85°C
or
Ta= 0°C to + 70°C
Ta=-40°C to + 85°C
or
∆fc/fo
Frequency drift during 24 hours of
continuous operation, max (See note 1)
0.37
0.30
ppm
∆fc/fo
Temperature Stability (See note 2)
ppm
Ta= 0°C to + 70°C
Vc= 0.25V
Vc= 2.25V
Offset ∆f = 12kHz to 20MHz
0.28
ppm
PPM
PPM
ps
Elect. Frequency Adjustment Range
(see note 3)
Jitter (peak to peak), max
(Fnom = 20 MHz)
-5 …-10
+5 …+10
10
∆f/fo (Vc)
J(f)
Phase noise SSB @ freq.offset, max
(Fnom = 20 MHz)
-80
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
£ (∆f)
∆f=10Hz
-110
-130
-145
∆f=100Hz
∆f=1kHz
∆f ≥ 10kHz
Load = 15pF
Load=10 kΩ||20pF
Load = 15pF
HCMOS output levels
Clipped Sine
Duty Cycle (HCMOS output)
VOH/VOL
Vout
0.9Vcc / 0.1Vcc
0.7
45 to 55
V
Vp-p
%
Raise/Fall time, max (HCMOS output)
Tr/Tf
Load = 15pF
4
ns
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ENVIRONMENTAL SPECIFICATION
Storage temperature range
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-45°C….+85°C
Vibration
IEC 68-2-6, test Fc:
10..500 Hz, 10g, 2 h, 3 directions
IEC 68-2-27, test Ea:
100g, ½ sine, 3 bumps, 6 directions
All parameters within initial
limits
All parameters within initial
limits
Mechanical shocks
-
Notes:
1. The 24 hours drift can be measured any time after minimum 1 hour from initial turn on. Please contact factory
for details.
2. The Temperature Stability is calculated with regard to frequency reading at 25°C 1°C.
3. TY045A series only.
* Telecordia is a trademark of Telecordia Technologies
** This specification is typical. Other frequencies, output types and custom parameters are available. Please, contact
factory for details.
RALTRON ELECTRONICS CORP. ꢀ10651 N.W . 19t h St ꢀMiami, Florida 33172 ꢀU.S.A.
phone: +001(305) 593-6033 ꢀfax: +001(305)594-3973 ꢀe-mail: sales@raltron.com ꢀinternet: http://www.raltron.com
