PCM1861 datasheet(76/145 Pages) TI2

76 / 145 page

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Frequency (Hz)

C013

PCM1860, PCM1861, PCM1862

PCM1863, PCM1864, PCM1865

SLAS831D – MARCH 2014 – REVISED MARCH 2018

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Product Folder Links: PCM1860 PCM1861 PCM1862 PCM1863 PCM1864 PCM1865

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Typical Applications (continued)

10.2.1.1 Design Requirements

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Device control method: Hardware control by digital GPIO pins of a microcontroller

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XTAL used for master mode

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Single-ended analog inputs

10.2.1.2 Detailed Design Procedure

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Device control method: Hardware control by digital GPIO pins of a microcontroller

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Select XTAL capacitors by reading the XTAL data sheet

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Single-ended analog inputs

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MD2, MD5, MD6 configuration (see the Pin Configuration and Functions for the PCM1860 and PCM1861)

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Audio slave mode

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MD0, MD1 grounded (see Figure 64, and the Pin Configuration and Functions for the PCM1860 and

PCM1861)

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The power rails in this application allow the usage of X7R Ceramic capacitors. A maximum voltage rating of

6.3 V should be enough for the power supply capacitors.

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Configure the microcontroller INT pin to be an input for interrupts, or change the function to output to pull high

to power down the PCM1860 and PCM1861.

10.2.1.3 Application Curves

Figure 65. Frequency Response with –1-dB Input at 1 kHz

PCM1861 Datasheet(PDF) 76 Page - Texas Instruments

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