Datasheet

Additional Design Tools

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Figure 5. TinyI2CSPI Settings

6 Additional Design Tools

The RD-179: High-IF Sub-sampling Receiver Subsystem board (SP16160CH1RB) is also available. This

reference design includes the ADC16DV160 ADC, the LMH6517 DVGA, and the LMK04031B precision

clock conditioner. Power regulation, filters and controlled impedance board layout are all provided in this

reference design. Please visit the TI website for further details.

7 Board Layout

The LMH6522EVAL board has been designed to provide excellent signal integrity and has been thermally

enhanced to provide for excellent heat dissipation. The LMH6522EVAL board has balanced differential

signal traces as well as provision for using single ended test equipment.

The LMH6522 DVGA dissipates approximately 2.4W of power. To keep the amplifier cool, the

LMH6522EVAL board uses eight layers of copper, many of which are solid ground planes connected

directly to the LMH6522 exposed thermal pad. This provides excellent heat dissipation and eliminates the

need for a heat sink. The board design files (in GERBER) format are available upon request.

AN-2072 LMH6522 Evaluation Board SNOA552B–July 2011–Revised May 2013

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