PCM5122 datasheet(7/107 Pages) TI1

Part #	PCM5122

Description	2VRMS DirectPath?? 112/106dB Audio Stereo DAC with 32-bit, 384kHz PCM Interface

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Manufacturer	TI1 [Texas Instruments]

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PCM5121, PCM5122

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SLAS763A – AUGUST 2012 – REVISED SEPTEMBER 2012

Table 5. PCM512x Hardwired mode Terminal Functions (continued)

Terminal

I/O

Description

Name

MODE1

17

I

Mode-control selection pins (2)

•

MODE1=Low, MODE2=Low : Hardwired mode

•

MODE1=Low, MODE2=High : I2C mode

MODE2

18

I

•

MODE1=High : SPI mode, MODE2 pin changes MS pin (chip select

for SPI)

FLT

19

I

Filter select : Normal latency (Low) / Low latency (High)

SCK

20

I

System clock input(2)

BCK

21

I/O

Audio data bit clock input(2)

DIN

22

I

Audio data input(2)

LRCK

23

I/O

Audio data word clock input(2)

FMT

24

I

Audio format selection : I2S (Low) / Left justified (High)

XSMT

25

I

Soft mute control : Soft mute (Low) / soft un-mute (High)(2)

LDOO

26

-

Internal logic supply rail terminal for decoupling, 1.8V

DGND

27

-

Digital ground

DVDD

28

-

Digital power supply, 3.3V or 1.8V

(2)

Failsafe LVCMOS Schmitt trigger input.

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