User`s manual

AMBE-2000™ Vocoder Chip
User’s Manual Version 4.9
DVSI Confidential Proprietary, Subject to Change Page 65
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History of Revisions
Revision
Number
Date of
Revision
Description Pages
1.0 November 1999 Initial Version
Pin descriptions 11-12
Serial Configuration Selection 19
Channel Serial Interface Pin Descriptions 20
1.1 April 2000
Table 6-A CODEC_SEL[1-0]:
A/D- D/A Hardware Configuration Values
35
Deleted the word parallel 9
1.2 May 2000
Table 5-N Control Word Format: Removed VAD in bit 5. This is not
used as an output.
32
1.3 August 2000 Added Application note for AD 73311AR 43
Clarification on VAD 28
Expanded Description of Control Word 1 29
Table 5-M added DTMF Code 0xff 32
1.4 October 2000
Channel and Codec Timing Diagrams and Tables 21, 22, 36, 37
1.5 November 2000 Added Note describing H 22, 37
2.0 January 2001 Clarified/corrected the following pages.
10, 11, 13, 14,
16,17, 18, 20,
21, 22, 23, 27,
28, 29, 32, 34,
35, 36, 40
2.1 February 2001 Updated Timing Diagrams and Tables for Channel and Codec 21, 22, 36, 37
Changed Pin Description CLK_I to X2/CLKIN and CLK_I2 to X1 11
Updated timing diagram and table for X2/CLKIN and RESETN 13, 14
2.2 February 2001
Replaced …set the DTMF Code to 0x00 to …
set the DTMF Code to 0xff
27
Company address updated 2
Removed description of Decoder Output Volume Control 28
Modified SLEEP_EN Section 7.6.1 40
Modified description of EPR 11, 12, 21
Added Detailed Explination of Slip Enable Control
43, 44
3.0 August 2001
Added description of Decoder Silence Detect, Decoder Frame Repeat
and Encoder DTMF Detect bits
30
3.3 February 2005
Added Decoder output volume control description section 5.2.9
Removed blank section 5.2.10
31
3.4 April 2005 Added Figure 3-F and text to section 3.6 20