Texas Instruments TLV320AIC26EVM, User Manual

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1-1 Introduction
Introduction
The AIC26 is a low power high performance audio codec with mono input and
stereo output. There are two digital interface buses on the AIC26 that commu-
nicate with a host processor: the SPI interface and the I
2
S interface. The SPI
serial interface is for a host processor to control the AIC26, and the audio data
is communicated to the AIC26 over the I
2
S bus. The AIC26 accesses both of
these buses through the use of a USB microcontroller, which provides a way
to generate data for both buses from a PC running Windows
r
98, Windows
2000, or Windows XP.
Topic Page
1.1 Device Characteristics 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 EVM Block Diagram 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Analog Inputs/Outputs 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 External Voltage Reference 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 Power Requirements 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6 Computer Requirements 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1