PCM5121 datasheet(64/121 Pages) TI2

64 / 121 page

Internal

Reset

Clocks

SCK,

BCK,

LRCK

I nternal

Reset

Removal

1.5V

1.8V

DVDD,

LDOO

2.8V

3.3V

AVDD,

CPVDD

Internal

Reset

Clocks

SCK,

BCK,

LRCK

I nternal

Reset

Removal

2.8V

3.3V

AVDD,

DVDD,

CPVDD

PCM5121, PCM5122

SLAS763C – AUGUST 2012 – REVISED OCTOBER 2018

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Product Folder Links: PCM5121 PCM5122

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10.4 Power-On Reset Function

10.4.1 Power-On Reset, DVDD 3.3-V Supply

The PCM512x includes a power-on reset function, as shown in Figure 83. With VDD > 2.8 V, the power-on reset

function is enabled. After the initialization period, the PCM512x is set to its default reset state. Analog output will

begin ramping after valid data has been passing through the device for the given group delay given by the digital

interpolation filter selected.

Figure 83. Power-On Reset Timing, DVDD = 3.3 V

10.4.2 Power-On Reset, DVDD 1.8-V Supply

The PCM512x includes a power-on reset function, as shown in Figure 84. With AVDD greater than approximately

2.8 V, CPVDD greater than approximately 2.8 V, and DVDD greater than approximately 1.5 V, the power-on

reset function is enabled. After the initialization period, the PCM512x is set to its default reset state.

Figure 84. Power-On Reset Timing, DVDD = 1.8 V

PCM5121 Datasheet(PDF) 64 Page - Texas Instruments

PCM5121 Datasheet(HTML) 64 Page - Texas Instruments

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