LM49200, LM49200TLEVAL

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SNAS459A – MAY 2009 – REVISED APRIL 2013

Demo Board Circuit

Figure 35. Demo Board Circuit

Demonstration Board

The demonstration board (see Figure 35) has connection and jumper options to be powered from the USB bus,

from external power supplies or a combination of both. Additional options are to power I2CVDD and VDD from a

single power supply or separate power supplies, as long as the voltage limits for each power supply are not

exceeded. See the Operating Ratings for each supply's limit range. When powered from the USB bus the I2CVDD

will be set to 3.3V and the VDD will be set to 5V. Jumper headers J13 and J12 must be set accordingly. If a single

power supply for I2CVDD and VDD is desired then header J5 should be used with a jumper added to header J11 to

connect I2CVDD to the external supply voltage connected to J5.

Connection headers J1 and J2 are provided along with the stereo headphone jack J4 for easily connection and

monitoring of the headphone outputs.

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