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EVM Quick Start Guide
5
EVM Quick Start Guide
The following guide allows the user to quickly configure the LMK03328 to evaluate any of the pre-
programmed Soft Pin Mode configurations.
1. Confirm the EVM Default power configuration is set per
using the on-board LDO regulators with VDD = 3.3 V and VDDO = 1.8 V.
2. Connect the 5-V lead to EXTVDD (J3, pin 1) and ground lead to GND (J3, pin 3) from a 1A-capable
power supply, and enable the 5-V output.
3. Set the Control Pin jumpers to select the desired Soft Pin Mode configuration in
4. To use the on-board XTAL on SECREF as the reference input to the PLLs, set JP17 = HI and do not
connect any input clock to PRIREF SMAs.
5. Toggle the PDN push-button switch to restart the device in the selected mode.
6. Observe any active output clock on OUT[7:0] SMA ports or STAT[1:0] SMA ports.
(a) All clock and status outputs are AC-coupled to the SMAs.
(b) Use 50-ohm coax cables to connect the test equipment to the output SMA ports. If making a single-
ended measurement on a differential output, terminate the unused SMA port with a 50-ohm load.
(c) Status LEDs, D6 & D7 (active low), can also be monitored for activity on STATUS pins when switch
S3 is in the "ON" position.
7. Refer to the Soft Pin Mode Control Interfaces descriptions in
input selection (JP17), output SYNC (switch S4), and XTAL frequency margining (JP23, JP24, and
switch S5).
18
LMK03328EVM User's Guide
Copyright © 2015, Texas Instruments Incorporated
Table 2
/
Figure 3
to power the LMK03328
Table
Table 3
for configuration of PLL reference
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6.
SNAU184 – August 2015
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