Specifications

AMBE-3000™ Vocoder Chip Users Manual
Version 2.8, August, 2011
6.6
Control Packet Format (Packet Type 0x00) ............................................................................................54
6.6.1 Control Packet Fields and Response Fields ................................................................................................... 54
6.7 Input Speech Packet Format (Packet Type 0x02) ..................................................................................71
6.7.1 Speech Packet Fields ...................................................................................................................................... 71
6.8 Output Speech Packets Format (Packet Type 0x02)..............................................................................74
6.9 Input Channel Packet Format (Packet Type 0x01) .................................................................................74
6.9.1 Channel Packet Fields.................................................................................................................................... 74
6.10 Output Channel Packet Format (Packet Type 0x01) ..............................................................................76
6.11 Example Packets.....................................................................................................................................76
6.11.1 Speech Packet Example 1 .............................................................................................................................. 76
6.11.2 Speech Packet Example 2 .............................................................................................................................. 77
6.11.3 Channel Packet Example 1............................................................................................................................ 78
6.11.4 Channel Packet Example 2............................................................................................................................ 79
7 APPENDICES ...................................................................................................................80
7.1 Algorithmic and Processing Delays.........................................................................................................80
7.2 Vocoder Rate by Index Number ..............................................................................................................81
7.3 Rate - Control Words / Configuration Pin Settings..................................................................................83
8 SUPPORT .........................................................................................................................85
8.1 DVSI Contact Information........................................................................................................................85
9 ENVIRONMENTAL SPECIFICATIONS ............................................................................86
10 IC CHIP SOFTWARE ERRATA........................................................................................89
11 HISTORY OF REVISIONS ................................................................................................91
List of Figures
Figure 1 TQFP Mechanical Details ..........................................................................................4
Figure 2 BGA Mechanical Details................................................................................................5
Figure 3 AMBE-3000™ Vocoder Chip Pins for LQFP Package ......................................................6
Figure 4 AMBE-3000™ Vocoder Chip Pins Bottom View of BGA chip............................................ 7
Figure 5 AMBE-3000™ Vocoder Chip LQFP Markings................................................................. 8
Figure 6 AMBE-3000™ Vocoder Chip Markings for BGA............................................................. 9
Figure 7 X1/XCLKIN and X2 with TTL/CMOS Clock Source....................................................... 18
Figure 8 X1/XCLKIN and X2 with Crystal Oscillator................................................................. 19
Figure 9 Output Levels....................................................................................................... 22
Figure 10 Input Levels....................................................................................................... 22
Figure 11 AMBE-3000™ Vocoder Chip Power States............................................................... 23
Figure 12 Power Mode States Basic Timing ........................................................................... 24
Figure 13 Power Modes...................................................................................................... 25
Figure 14 Basic Operation .................................................................................................. 27
Figure 15 Typical Echo Path................................................................................................ 29
Figure 16 Codec Mode (SPI Interface).................................................................................. 35
Figure 17 Codec Mode (McBSP Interface) ............................................................................. 36
Figure 18 Interface BLOCK Diagram Codec Mode................................................................... 37
(Subject to Change) Page vii
DVSI CONFIDENTIAL PROPRIETARY