oh300-eval board

Available at Digi-Key
www.digikey.com
OH300-EVAL
Eval Board Quick Start Guide
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
Q
U
I
C
K
S
T
A
R
T
G
U
I
D
E
Bulletin
Page
Revision
Date
Cx261-EVAL
1 of 1
P00
13 Aug 2014
General Instructions
1.Insert the OH300 unit into the eval board socket
• Pin 1 of the OH300 should be oriented to the lower left of the fixture in the view above. • Close the clam-shell cover until it clicks.
2.Connect power
• Connect the wired Vcc banana plug from TP3/TP4 to the appropriate 3.3V or 5V power supply capable of supplying ~ 1.2A of current.
• Do not use the J5 “VCC” BNC for the power connection.
3.Connect output:
• For CMOS outputs, connect the “CMOS OUT” BNC J6 to an oscilloscope or frequency
counter input. Use a high impedance probe if possible. • For Sinewave outputs, connect the “RF OUT” BNC J9 using a coaxial cable to a 50ohm
scope or frequency counter input. 4.Connect voltage control:
• For OH300-series parts with voltage control (VCOCXO) option, connect J10 “CV IN” BNC to the appropriate +1.65Vdc or +2.5Vdc supply.
Designator/Label
Input/Output
Voltage/Logic Type
Function
TP3/TP4 “Vcc/Gnd”
Input
+3.3V or +5V
Eval Board Power via wire
J5 “VCC Shielded”
Input
+3.3V or +5V
Do not use (use hard wired Vcc
connection with banana plug
instead of this BNC)
J6 “CMOS OUT”
Output
CMOS
Buffered CMOS output
J8 “VREF”
Input
N/C
Do not use
J9 “RF OUT”
Output
Sinewave
Sinewave Output J10 “CV IN”
Input
+1.65 or +2.5Vdc
Control Voltage Input