MK3713 Datasheet, PDF (2/4 Pages) Integrated Circuit Systems – Low Cost 3.3 Volt VCXO

PRELIMINARY INFORMATION
MK3713
Low Cost 3.3 Volt VCXO
Pin Assignment
MK3713
X1 ¹
8 X2
VDD ²
7 _S1
VIN ³
6 _VCXOCLK
GND 4
5 _S0
8 pin (150 mil) SOIC
Divider Select Table
S1
S0 VCXOCLK (MHz)
0
0
Crystal ÷2
0
1
Crystal ÷4
1
0
Crystal ÷6
1
1
Crystal ÷8
Application Tip
For 1.544 MHz (T1), use 12.352 MHz crystal ÷8
For 2.048 MHz (E1), use 12.288 MHz crystal ÷6
Pin Descriptions
Number Name Description
1
X1 Crystal connection. Connect to a pullable 10 to 20 MHz crystal.
2
VDD VDD. Connect to + 3.3 V.
3
VIN Voltage input to VCXO. Zero to 3.3 V analog input which controls the frequency of the VCXO.
4
GND Connect to ground.
5
S0 Select pin for VCXO divider. See table above.
6 VCXOCLK VCXO clock output. Full CMOS output amplitude.
7
S1 Select pin for VCXO divider. See table above.
8
X2 Crystal connection. Connect to a pullable 10 to 20 MHz crystal.
Pullable Crystal Specifications:
Correlation (load) Capacitance
C0/C1
ESR
Operating Temperature
Initial Accuracy
Temperature plus Aging Stability
14 pF
240 max
35 Ω max
0 to 70 °C
±20 ppm
±50 ppm
MDS 3713 B
2
Revision 020900
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