AD1833AST datasheet(10/20 Pages) AD

Part #	AD1833AST

Description	Multichannel 24-Bit, 192 kHz, DAC

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Manufacturer	AD [Analog Devices]

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REV. 0

AD1833

–10–

Table VIII. DAC Control II

Function

Address

Reserved

*

Reserved

*

Mute Control

15–12

11

10

9–6

5

4

3

2

1

0

0001

0

Channel 6

Channel 5

Channel 4

Channel 3

Channel 2

Channel 1

0 = Mute Off

0 = Mute Off 0 = Mute Off

0 = Mute Off

0 = Mute Off 0 = Mute Off

1 = Mute On

1 = Mute On 1 = Mute On

1 = Mute On

1 = Mute On 1 = Mute On

*Must be programmed to zero.

DAC CONTROL REGISTER II

DAC Control Register II contains individual channel mute

controls for each of the 6 DACs. Default operation (bit = 0) is

muting off. Bits 9 through 6 of Control Register II are reserved

and should be programmed to zero, see Table VIII.

Table IX. Muting Control

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Muting

XXXXX1

Mute Channel 1

XXXX1

X

Mute Channel 2

XXX1

XX

Mute Channel 3

X

1

X

Mute Channel 4

X1

XXXX

Mute Channel 5

1

XXXXX

Mute Channel 6

DAC CONTROL REGISTER III

Stereo Replicate

The AD1833 allows the stereo information on Channel 1

(SDIN1—Left 1 and Right 1) to be copied to Channels 2 and 3

(Left/Right 2 and Left/Right 3). These signals can be used in an

external summing amplifier to increase potential signal SNR.

Stereo Replicate mode can be enabled by writing to Control

Bit 5, see Table XI. Note that replication is not reflected in

the zero flag status.

Table XI. Stereo Replicate

Bit 5

Stereo Mode

0

Normal

1

Channel 1 Data Replicated on Channels 2 and 3

Table X. DAC Control III

Function

Stereo Replicate

Address

Reserved

*

Reserved

*

(192 kHz)

MCLK Select

Zero Detect

Reserved

15–12

11

10

9–6

5

4–3

2

1–0

1000

0

0 = Normal

00 = 256

× f

S (MCLK

× 2)

0 = Active High

1 = Replicate

01 = 512

× f

S (MCLK

1 = Active Low

Straight Through)

10 = 768

× f

S (MCLK

× 2/3)

*Must be programmed to zero.

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