CMX649 CML Microcircuits, CMX649 Datasheet - Page 2

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

ADM Codec
2003 CML Microsystems Plc
Section
1.
2.
3.
4.
5.
6.
7.
Brief Description.................................................................................. 1
Block Diagram ..................................................................................... 3
Signal List ............................................................................................ 4
External Components.......................................................................... 5
General Description............................................................................. 6
5.1
5.2
Application Notes .............................................................................. 37
6.1
6.2
6.3
Performance Specification................................................................ 44
7.1
7.2
Block Descriptions.................................................................. 6
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.1.7
5.1.8
5.1.9
5.1.10 Voice Activity Detector (VAD) .................................. 12
C-BUS Description ................................................................ 13
5.2.1
5.2.2
C-BUS Operation................................................................... 37
CODEC Data Interface........................................................... 38
Example CODEC Setups and Application Help................... 39
Electrical Performance.......................................................... 44
Packaging.............................................................................. 49
ADM Coding Engine ................................................... 6
PCM Encoding and Decoding.................................... 7
Transcoding with the Encoder and Decoder ............ 8
Non-Linear Instantaneous Companding ................... 9
Digitally Controlled Amplifiers................................... 9
Microphone Amplifier................................................. 9
Programmable Anti-alias/image SC Filters ............... 9
Data Clock Recovery ................................................ 11
Data Scrambler/De-scrambler .................................. 11
Write Only Register Description .............................. 16
Read Only Register Description .............................. 35
CONTENTS
2
Page
CMX649
D/649/2