PCM1602A datasheet(26/46 Pages) TI2

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PCM1602A

SLES146A – AUGUST 2005 – REVISED OCTOBER 2010

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B15

B14

B13

B12

B11

B10

R/W

IDX6

IDX5

IDX4

IDX3

IDX2

IDX1

IDX0

RSV

ZREV

DREV

DMF1

DMF0

DMC

R/W – Read/Write Mode Select

When R/W = 0, a write operation is performed.

When R/W = 1, a read operation is performed.

Default value: 0

ZREV – Zero-Flag Polarity Select

Default value: 0

ZREV = 0

Zero-flag pins HIGH at a zero detect (default)

ZREV = 1

Zero-flag pins LOW at a zero detect

The ZREV bit allows the user to select the polarity of zero-flag pins.

DREV – Output Phase Select

Default value: 0

DREV = 0

Normal output (default)

DREV = 1

Inverted output

The DREV bit allows the user to select the phase of the analog output signal.

DMF[1:0] – Sampling Frequency Selection for the De-Emphasis Function

These bits are read/write.

Default value: 00b

DMF[1:0]

De-Emphasis Sample Rate Selection

44.1 kHz (default)

48 kHz

32 kHz

Reserved

The DMF[1:0] bits are used to select the sampling frequency used for the digital de-emphasis function when it is

enabled. The de-emphasis curves are shown in the Typical Performance Curves section of this data sheet. The

preceding table shows the available sampling frequencies.

DMC – Digital De-Emphasis, All-Channel Function Control

This bit is read/write.

Default value: 0

DMC = 0

De-emphasis disabled for all channels (default)

DMC = 1

De-emphasis enabled for all channels

The DMC bits are used to enable or disable the de-emphasis function for all channels. The three DMC bits are

ORed together. Setting any one DMC bit, any combination of two DMC bits, or all three DMC bits to 1 enables

digital de-emphasis for all channels. Setting all three DMC bits to 0 disables digital de-emphasis for all channels.

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