Texas Instruments PCM6 0Q1EVM-PDK Series, User Manual, Page: 3 / 67

MUX
USB
Optical Inp ut
Stereo An alog
Input
Exte rnal ASI Hea der
Sou rce
Sele ctor
(SW2)
Aud io
Pro cessor
PCM921 1 Optical Output
To EVM
www.ti.com
Introduction
3 SBAU341B – January 2020 – Revised June 2020
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PCM6xx0Q1EVM-PDK Evaluation Module
1 Introduction
The PCM6xx0Q1EVM-PDK is an evaluation module (EVM) designed to demonstrate the performance and
functionality of the PCM6xx0 family of devices. This family includes the devices shown in
Table 1 with
differences in performance and function noted. Throughout this document, the abbreviation EVM and the
term evaluation module are synonymous with the PCM6xx0Q1EVM-PDK.
Table 1. PCM6xx0Q1 Family
Device Integrated Boost Number of Channels
PCM6260Q1 Yes 6
PCM6240Q1 Yes 4
PCM6360Q1 No 6
2 Hardware Overview
The evaluation kit consists of the PCM6xx0EVM daughterboard and the AC-MB motherboard. The
motherboard is used to provide power, control, and digital audio signals to the evaluation module. The
daughterboard contains the PCM6xx0Q device and its input connections. A detailed functional overview of
the PCM6xx0Q1EVM system is described in
Section 6 .
2.1 AC-MB Settings
2.1.1 Audio Serial Interface Settings
The AC-MB provides the digital audio digital signals to the evaluation module from the universal serial bus
(USB), optical, stereo jack, and external audio serial interface (ASI) header.
Figure 1 shows a block
diagram of the ASI routing on the AC-MB.
Figure 1. AC-MB Audio Serial Interface Routing
Switch SW2 on the AC-MB selects the audio serial bus that interfaces with the PCM6xx0EVM. Next to
switch SW2, the AC-MB has a quick reference table to identify the audio serial interface source options
and switch settings. The AC-MB acts as the master for the audio serial interface, with three different
modes of operation (see
Figure 2 ): USB, optical or analog, or external ASI.