Datasheet

L M K 0 4 8 1 6 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
SNLU107
5
Quick Start
Full evaluation board instructions are downloadable from the LMK04816B device product folder
at www.ti.com.
1. Connect a power supply voltage of 5 V to the Vcc SMA connector. The onboard
LP3878-ADJ LDO regulator will output a low-noise 3.3 V supply to operate the device.
2. Connect a reference clock from a signal source to the CLKin1 SMA port. Use 122.88
MHz for default. The reference frequency depends on the device programming.
3. Connect the uWire header to a PC parallel port using the CodeLoader cable. A USB
interface is also available (search for “USB2UWIRE-IFACE” at www.ti.com).
4. Program the device with a default mode using CodeLoader. Ctrl+L must be pressed at
least once to load all registers. Alternatively click menu “Keyboard Controls”  “Load
Device”. CodeLoader can be downloaded from www.ti.com/tool/codeloader/.
5. Measurements may be made on an active output clock port via its SMA connector.
CLKout0
CLKout0*
Laptop or PC
Parallel Port
Connector
5.0 V
(LDO)
1
3
4
Program with CodeLoader
Be sure to press ‘Ctrl - L’
CLKin
1
Reference clock from
signal generator or other
external source.
122.88 MHz
(Default)
2
Power
Reference
LMK04816
uWire
header
Parallel Port Ribbon Cable
CLKout2
CLKout2*
CLKout
4
CLKout
4
*
CLKout
6
*
CLKout
6
CLKout
8
CLKout
8
*
CLKout
10
*
CLKout
10
OSCout0
OSCout0*
CLKin
0
CLKin
0
*
5.0 V
3.3 V
Factory default is LDO is used.
Customer may reconfigure to
power LMK directly.
CLKin
2
CLKin
2
*
Figure 1: Quick Start Diagram