PCM4222 datasheet(9/44 Pages) TI2

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PCM4222

SBAS399A – OCTOBER 2006 – REVISED MARCH 2007

PIN DESCRIPTIONS (continued)

NAME

PIN NUMBER

I/O

DESCRIPTION

DSDEN or MOD6

I/O

DSD output enable input (active high), or modulator data output 6 (MSB) when MODEN = high.

MODEN

Input

Multi-bit modulator output enable (Active High)

DSDMODE

Input

DSD output mode/rate

SUB1 or MCKO

I/O

TDM active sub-frame selection input, or master clock output when MODEN = high.

SUB0 or WCKO

I/O

TDM active sub-frame selection input, or modulator left/right word clock output when MODEN = high.

DSDCLK

Output

DSD data clock

DSDL

Output

Left channel DSD data

DSDR

Output

Right channel DSD data

DGND

Ground

Digital ground

VDD

Power

Digital supply, +3.3V nominal

DATA

Output

PCM output data

BCK

I/O

PCM bit or data clock

LRCK

I/O

PCM left/right Word clock

MCKI

Input

Master clock

RST

Input

Reset and power-down

OVFL

Output

Left channel overflow flag (Active high)

OVFR

Output

Right channel overflow flag (Active high)

S/M

Input

PCM output slave/master mode

DGND

Output

Digital ground

OWL1

Input

PCM output word length

OWL0

Input

PCM output word length

FMT1

Input

PCM output data format

FMT0

Input

PCM output data format

DGND

Ground

Digital ground

VREFR

Output

Right channel reference output for decoupling purposes only.

REFGNDR

Ground

Right channel reference ground. Connect to analog ground.

VCOMR

Output

Right channel common-mode voltage (0.4875 x VCC1 nominal)

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