Datasheet

L M K 0 4 1 X X - R E V 3 E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S
SNLU099
7
Connector Name
Input/Output
Description
Vtune1
Output
Unpopulated connector.
Tuning voltage output from the loop filter for PLL1. If an
external VCXO is used, this tuning voltage should be
connected to the voltage control pin of the external VCXO.
Note: Resistor R38 must be populated with a zero ohm
resistor to control an off-board VCXO.
uWire
Input/Output
Populated connector.
10-pin header programming interface for the board. Of
Most important are the CLKuWire, DATAuWire, and
LEuWire programming lines from this header. Each of
these signals, GEO, and SYNC* can be monitored through
test points on the board.
LD
Output
Unpopulated connector.
The LD pin is attached to a multiplexer inside the device
and may be programmed with a variety of internal signals
for monitoring internal device functions and
troubleshooting. See datasheet for further explanation.
The lock detect signal is accessible through this pin.
LD_TP
Output
Test point attached to the LD pin of the device. See LD
above for more information.
GOE
Input
Unpopulated connector.
Access to GOE of device.
SYNC*
Input
Unpopulated connector.
Access to SYNC* of device.
PTO
Output
Unpopulated connector.
Vcc SMA located close to OSCin SMAs for powering
external oscillator boards.