VTB4 Datasheet, PDF (1/4 Pages) Vectron International, Inc – CMOS TCXO

Customer Specific Product Data Sheet
Pin Information
Table 1. Pin Function
Pin Symbol
1
NC
7
GND
8
Output
14
V_DD
VTB4-1000-20M000
CMOS TCXO
Function
No Connect
Case Ground
CMOS Output waveform
Power Supply Voltage (3.3 V ± 5%)
Performance Characteristics
Table 2. Electrical Performance
Parameter
Nominal Output Frequency
Supply Voltage¹
Operating Temperature Range
Storage Temperature
Supply Current
Output Voltage Levels (from V_DD)
High
Low
Output Current Levels
High
Low
Symbol
f₀
V_DD
T_OP
T_stor
I_DD
Minimum
-
3.14
0
-40
V _OH
2.2
V _OL
I_OH
-4.0
I_OL
Typical
20.000
3.3
Maximum
-
3.47
+70
+85
20
Units
MHz
V
°C
°C
mA
V
0.40
mA
+4.0
Output Rise/Fall Time²
Output Duty Cycle or Symmetry³
t_R/t_F
D
40
5
ns
60
%
Stability over operating temperature/initial
deltaf/f _O
-4.6
tolerance/ 15 years aging/ power supply and load
variation
+4.6
ppm
Jitter, 10Hz to 20MHz, RMS
2
5
pS
Jitter, 12kHz to 20MHz, RMS
0.5
1
pS
Phase Noise
dBc/Hz
10 Hz
-70
100 Hz
-100
1kHz
-125
10kHz
-135
100kHz
-140
Start Up Time
T_su
10
mS
1. A 0.1 µF low frequency ceramic bypass capacitor in parallel with a 0.01 µF high frequency ceramic capacitor is
recommended.
2. Figure 1 defines these parameters. Figure 2 illustrates the operating conditions.
3. Duty cycle is defined as (on time/period) per Figure 1.
4. Measured using a Wavecrest DTS2075 or equivalent.
Vectron International •267 Lowell Rd, Hudson, NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com
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