CMX649 CML Microcircuits, CMX649 Datasheet - Page 19

• Manufacturer Part Number: CMX649
• Description: ADM Codec
• Manufacturer: CML Microcircuits

AAF Power
Control
(Bit 7)
ADM Codec
POWER CONTROL 1 Register ($64)
AAF Power
Control
(Bit 6)
AIF Power
Control
(Bit 5)
AIF Power
Control
(Bit 4)
Encode DAC
Power Control
(Bits 3 – 2)
Decode DAC
Power Control
(Bits 1 – 0)
2003 CML Microsystems Plc
Bit 7
Bit 5
Bit 3
Bit 1
0
0
0
0
0
0
1
1
0
0
1
1
This bit is reserved and should be set to a logic 0
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.
This bit is reserved and should be set to a logic 0.
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.
These bits are dedicated to power/current control for the Encode DAC.
These bits are dedicated to power/current control for the Decode DAC.
Bit 6
Bit 4
Bit 2
Bit 0
0
1
0
1
0
1
0
1
0
1
0
1
Power down (Off).
Normal operation.
Power down (Off).
Normal operation.
Power down (Off).
Lowest power (for bit rates less than 32kbps).
Low power (for bit rates between 32kbps and 64kbps).
Normal operation (for bit rates greater than 64kbps).
Power down (Off).
Lowest power (for bit rates less than 32kbps).
Low power (for bit rates between 32kbps and 64kbps).
Normal operation (for bit rates greater than 64kbps).
Power Level Setting
Power Level Setting
Power Level Setting
Power Level Setting
19
CMX649
D/649/2