CMX649E3 CML Microcircuits, CMX649E3 Datasheet - Page 20

• Manufacturer Part Number: CMX649E3
• Description: ADM Codec
• Manufacturer: CML Microcircuits

ADM Codec
Reserved
(Bits 2– 0)
POWER CONTROL 1 Register ($64)
AAF Power
Control
(Bits 7 – 6)
AIF Power
Control
(Bits 5 – 4)
Encode DAC
Power Control
(Bits 3 – 2)
Decode DAC
Power Control
(Bits 1 – 0)
2002 CML Microsystems Plc
Bit 7
Bit 5
Bit 3
Bit 1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
These bits are reserved and should be set to a logic 0.
These bits are 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.
These bits are 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
0
1
0
1
Power down (Off).
Lowest power (for audio bandwidths less than 3.3kHz).
Low power (for audio bandwidths between 3.3kHz and
10kHz).
Normal operation (for audio bandwidths greater than
10kHz).
Power down (Off).
Lowest power (for audio bandwidths less than 3.3kHz).
Low power (for audio bandwidths between 3.3kHz and
10kHz).
Normal operation (for audio bandwidths greater than
10kHz).
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
20
CMX649
D/649/1