PCM4108

SBAS354 − JUNE 2005

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29

Register 5: Function Control Register

BIT 7 (MSB)

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0 (LSB)

MUT4

MUT3

MUT2

MUT1

ZDM

PHASE

DEM1

DEM0

This register controls various D/A converter functions, including de-emphasis filtering, output phase reversal, zero data

mute, and per-channel soft muting.

DEM[1:0]

Digital De-Emphasis for Channels 1 through 4

De-emphasis is available for Single Rate mode only. De-emphasis is disabled for Dual and Quad Rate modes.

DEM1

DEM0

De-Emphasis Selection

0

0

De-emphasis disabled (default)

0

1

1

0

1

1

PHASE

Output Phase for Channels 1 through 4

PHASE

Output Phase

0

Noninverted (default)

1

Inverted

ZDM

Zero Data Mute for Channels 1 through 4

ZDM

Zero Mute

0

Disabled (default)

1

Enabled

MUT[4:1]

Soft Mute for Channels 1 through 4

MUTx

D/A Converter Output

0

On (default)

1

Muted

NOTE: x = channel number.