Texas Instruments PCM6xx0Q1EVM-PDK, User Manual, Page: 12 / 68

To J1.1
(IN1P)
INP INM
To J1.3
(IN1M)
To J1.1
(IN1P)
INP INM
Single-ended Input Test Setup
Short to MICBIAS
Differential Input Test Setup
Short to MICBIAS
Hardware Overview
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12 SBAU341B – January 2020 – Revised June 2020
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PCM6xx0Q1EVM-PDK Evaluation Module
2.2.3 Diagnostics Hardware Setup
The diagnostics test circuitry, as shown in Figure 11 , is not connected to any channel by default. Connect
J32 and J34 to the INxP and INxM pins of the channel under test. With the onboard diagnostics test
circuitry, only one channel can be tested at a time. A fault is introduced by pressing SW1.
Figure 11. PCM6xx0Q1EVM Diagnostics Circuitry
The diagnostic test selection is done by populating a jumper on the pins of J33, but only install one jumper
at any one time. TI's recommended settings for this diagnostics test circuit are discussed in this section.
2.2.3.1 Short to MICBIAS Setup
Figure 12 shows a short to the MICBIAS test. If using a single-ended input for the test channel, only
connect INxP.
Figure 12. Short to MICBIAS Diagnostic Test Setup