PCM5142 datasheet(65/123 Pages) TI2

65 / 123 page

Internal Reset

I2S Clocks

SCK, BCK, LRCK

Internal Reset

4 ms

Reset Removal

1.5V

1.8V

DVDD, LDOO

2.8V

3.3V

AVDD, CPVDD

Internal Reset

I2S Clocks

SCK, BCK, LRCK

Internal Reset

4 ms

Reset Removal

2.8V

3.3V

AVDD, DVDD,

CPVDD

PCM5141, PCM5142

www.ti.com

SLAS759B – AUGUST 2012 – REVISED JANUARY 2016

10.4 Power-On Reset Function

10.4.1 Power-On Reset, DVDD 3.3-V Supply

The PCM514x includes a power-on reset function, as shown in Figure 85. With VDD > 2.8 V, the power-on reset

function is enabled. After the initialization period, the PCM514x 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 85. Power-On Reset Timing, DVDD = 3.3 V

10.4.2 Power-On Reset, DVDD 1.8-V Supply

The PCM514x includes a power-on reset function, as shown in Figure 86. 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 PCM514x is set to its default reset state.

Figure 86. Power-On Reset Timing, DVDD = 1.8 V

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PCM5142 Datasheet(PDF) 65 Page - Texas Instruments