Texas Instruments PCM6xx0Q1EVM-PDK, User Manual, Page: 5 / 68

Host Processor / Audio Analyzer
M
C
LK
B
C
LK
F
S
Y
N
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DI
N
DOU
T
GND
ON
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Hardware Overview
5 SBAU341B – January 2020 – Revised June 2020
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PCM6xx0Q1EVM-PDK Evaluation Module
2.1.1.3 External
In this mode, the audio serial interface clocks for the evaluation board are provided through connector J7
from an external source. This architecture allows an external system to be used for communication with
the evaluation board, such as a different host processor or test equipment (for instance, Audio Precision™
PSIA). The clocks generated from the USB interface and PCM9211 are isolated with this setting.
Figure 4
shows the AC-MB audio setting for the external mode of operation.
Figure 4. AC-MB External Audio Setting
Figure 5 shows how to connect the external audio interface. Odd numbered pins are signal carrying, and
even numbered pins are connected to ground.
Figure 5. AC-MB Connection With External Audio Serial Interface