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BOM, Schematic, and Layout

5.2

Device Operation

Once the analog and digital power sources are applied to the AMC1204EVM, the digital outputs become

active upon the application of an external modulator clock source. The internal reference of the AMC1204

is used as the conversion reference.

Additionally, an analog input signal may be applied directly at screw terminal J1. See Figure 1 and Table 3

for more details. The analog input range, (VIN+) – (VIN–), is ±320 mV.

As the input voltage approaches the maximum input level of +320mV, the 1s density of the modulator

output approaches 92%. Likewise, when the input voltage approaches the lower limit of –320 mV, the 1s

density is approximately 8%.

6

BOM, Schematic, and Layout

This section contains the complete bill of materials, schematic diagram, and PCB layout for the

AMC1204EVM.

NOTE:

Board layouts are not to scale. These are intended to show how the board is laid out; they

are not intended to be used for manufacturing AMC1204EVM PCBs.

6.1

Schematic

The AMC1204EVM schematic is appended to this document.

6.2

Printed Circuit Board Layout

Figure 3. AMC1204EVM Silk Screen Drawing

5

SBAU178 – August 2010

AMC1204EVM

Copyright © 2010, Texas Instruments Incorporated