CMX649 Просмотр технического описания (PDF) - CML Microsystems Plc

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CMX649

ADM Codec

CML Microsystems Plc 

ADM Codec

CMX649

POWER CONTROL 1 Register ($64)

AAF Power

This bit is reserved and should be set to a logic 0

Control

(Bit 7)

AAF Power

Control

(Bit 6)

This bit is dedicated to power/current control for the AAF. Note: It is necessary to

keep the power level set to one of the “ON” settings when the AAF is bypassed.

Bit 7

0

0

Bit 6

0

1

Power Level Setting

Power down (Off).

Normal operation.

AIF Power

Control

(Bit 5)

This bit is reserved and should be set to a logic 0.

AIF Power

Control

(Bit 4)

This bit is dedicated to power/current control for the AIF and the Sidetone DCA.

Note: It is necessary to keep the power level set to one of the “ON” settings when

the AIF is bypassed.

Bit 5

0

0

Bit 4

0

1

Power Level Setting

Power down (Off).

Normal operation.

Encode DAC

These bits are dedicated to power/current control for the Encode DAC.

Power Control

(Bits 3 – 2)

Bit 3 Bit 2

Power Level Setting

0

0 Power down (Off).

0

1 Lowest power (for bit rates less than 32kbps).

1

0 Low power (for bit rates between 32kbps and 64kbps).

1

1 Normal operation (for bit rates greater than 64kbps).

Decode DAC

These bits are dedicated to power/current control for the Decode DAC.

Power Control

(Bits 1 – 0)

Bit 1 Bit 0

Power Level Setting

0

0 Power down (Off).

0

1 Lowest power (for bit rates less than 32kbps).

1

0 Low power (for bit rates between 32kbps and 64kbps).

1

1 Normal operation (for bit rates greater than 64kbps).

© 2003 CML Microsystems Plc

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