EK57 View Datasheet(PDF) - Apex Microtechnology

Part Name

Description

Manufacturer

EK57

Evaluation Kit

Apex Microtechnology 

EK57

10. Mount other components to complete your application circuit using the pads and holes provided.

11. From the “DUT side” of the PCB snap the spacer- grommets into the holes at the four corners of the PCB.

Notice that the holes are slightly rectangular and match the spacer-grommet's long and short sides to the

holes in the PCB.

12. Apply a thin, uniform layer of thermal grease to the amplifier; a straight edge may be useful here. Position

the amplifier over the mounting holes in the heatsink. Firmly push the amplifier onto the heatsink while

slightly rotating the amplifier back and forth, ending with the mounting holes of the amplifier over the

mounting holes in the heatsink.

13. Attach the amplifier to the heatsink with 4-40x½’ male-female hex spacers (not supplied). These spacers

serve as alignment pins and aide in the assembly of the PCB to the heatsink. Alternatively, use 4-40x¼’

machine screws to mount the amplifier to the heatsink. Do not over-tighten the spacers or screws as this

provides no thermal benefit and may break the hardware.

14. Place the PCB assembly on the heatsink/amplifier assembly so that the hex spacers come through the

aligning holes near the corners of the amplifier location in the PCB. Carefully lower the PCB assembly until

the pins of the amplifier engage the cage jacks. Alternately, sight through the aligning holes in the PCB

and match-up the PCB to the screws used to mount the amplifier. In either case be sure the pins of the

amplifier are engaged with the cage jacks and then continue pushing the PCB Assembly in the area

between the amplifier’s pins until the four spacer grommets at the four corners of the PCB touch the

heatsink. At this point the PCB should not be bowed.

15. Use #8 X 1" sheet metal screws (not provided) to mount the PCB to the heat sink at the four spacer-grom-

mets.

16. Inspect the assembly from the side and check that the PCB is not bowed toward the heat sink. If the PCB

is bowed use a small tool to carefully pry the PCB away from the heat sink until the PCB is flat.

17. Hook up power and signals as necessary. The amplifier is now ready for testing.

4

EK57U Rev F

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