SNVU698B September 2020 – December 2020 LMQ61460-Q1
5 Board Layout
Figure 5-1 through Figure 5-5 show the board layout for the LMQ61460-Q1 EVM. The EVM offers resistors, capacitors, and test points to configure the following:
- Output voltage (RFBT and RFBB)
- Precision enable pin (RENT and RENB)
- Set frequency (RT)
- External clock synchronization (CLK jumper)
The 14-pin Hotrod package with integrated capacitors offers a very small size and low-noise solution. The PCB consists of a 4-layer design. There are 2-oz copper planes on the top and bottom and 1-oz copper mid-layer planes to route signals and dissipate heat with an array of thermal vias to connect to all four layers.
Test points have been provided for ease of use to connect the power supply and required load, and to monitor critical signals.
The board measures 3.00" x 4.00" (76mm x 101mm).
Figure 5-1 Top View with
Silkscreen
Figure 5-2 Top Layer
Figure 5-3 Signal Layer 1 -
Ground Plane
Figure 5-4 Signal Layer 2 -
Routing
Figure 5-5 Bottom
Layer