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AMBE-2020
Digital Voice Systems AMBE-2020 Manuals
Manuals and User Guides for Digital Voice Systems AMBE-2020. We have
6
Digital Voice Systems AMBE-2020 manuals available for free PDF download: User Manual, Interface Manual, Supplementary Manual, Implementation Manual, Specifications
Digital Voice Systems AMBE-2020 User Manual (65 pages)
Vocoder Chip
Brand:
Digital Voice Systems
| Category:
Recording Equipment
| Size: 2 MB
Table of Contents
Table of Contents
5
Product Introduction
7
General Information
7
Advantages
7
Typical Applications
8
Version 4.92, June
8
A/D – D/A Overview
9
2 AMBE-2020™ Application Design Overview
9
Initial Design Considerations
9
Basic Operation
9
Vocoder Front End Requirements
10
Channel Interface Overview
11
Speech and FEC Rate Selection Overview
12
Special Handling Instructions
13
3 Hardware Information
13
Storage
13
Pin Descriptions
14
Clock and Reset Timing
16
Associated Chip Delay
17
Crystal / Oscillator Usage
18
TTL Clock Source
18
Package Description
19
Electrical Characteristics and Requirements
21
Normal Operating Conditions
21
Absolute Maximum Ratings
21
Thermal Resistance Characteristics
22
4 Channel Interface
23
Overview
23
Serial Configuration Selection
24
Channel Serial Mode
25
Low Level Timing for Passive and Active Serial Mode
26
5 Channel Data Format
28
Framed Input Format
28
Framed Format
28
Framed Input: Word 1 : Power Control ID
29
Framed Input: Word 0 : Header
29
Framed Input: Words 2-6 : Rate Information
30
Framed Input: Word 1 : Control Word 1
30
Framed Input: Word 7 : Unused in Input
31
Framed Input: Word 8 : Unused in Input
31
Framed Input: Word 9 : Unused in Input
31
Framed Input: Word 11 : Control Word 2
32
Framed Input: Word 10 : DTMF Control
32
Framed Input: Words 12-23 : Channel Data
33
Framed Output Format
33
Framed Output: Word 1 : Power Control ID
34
Framed Output: Word 1 : Control Word 1
34
Framed Output: Word 0 : Header
34
Framed Output: Word 8 : Soft Decision Distance
35
Framed Output: Words 2-6 : Rate Information
35
Framed Output: Word 9 : Detected Bit Errors
35
Framed Output: Word 7 : Bit Error Rate
35
Framed Output: Word 10 : DTMF Control
35
Framed Output: Word 11: Control Word 2
37
Framed Output: Words 12-23 : Channel Data
38
Unframed Serial Output Format
38
Unframed Serial Format
38
Unframed Serial Input Format
39
Configuring the A/D-D/A Interface Using CODEC_SEL[1-0]
40
6 A/D-D-A Interface
40
A/D-D/A Overview
40
Low Level A/D–D/A Timing
41
Hardware Vs. Software Selection Note
43
Coding Rate Selection
43
7 Special Functions
43
Voice Activity Detection (VAD), Comfort Noise Insertion (CNI)
44
Dual Tone Multiple Frequency, Detection and Generation
45
Normal Power and Power Saving Modes
45
Standard Sleep Mode
45
Power down
45
Slip Enable
46
Example: AD73311 Usage
49
8 Appendices
49
Example: Texas Instruments TLV320AIC10 Usage
50
Initialization Procedure
50
Configuring the AD73311 for 3-Volt Operation
54
Interfacing to the Texas Instruments PCM3500 Codec
56
Expanded Tone Detection and Generation
59
Soft Decision Decoding
60
Special Rate 2350 Bps Voice / 50 Bps FEC AMBE-1000™ Vocoder Chip Compatible Mode
62
History of Revisions
64
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Digital Voice Systems AMBE-2020 Interface Manual (4 pages)
Interfacing DVSI’s AMBE-2000 and AMBE-2020 Vocoder Chips with the Analog Devices AD73311 Codec
Brand:
Digital Voice Systems
| Category:
Recording Equipment
| Size: 0 MB
Table of Contents
AD73311AR Codec (Using a 5 Volt Supply)
1
AD73311AR Codec (Using a 3 Volt Supply)
2
Register Address and Configuration Data
3
AD73311L Codec (3 Volt Supply)
3
Additional Reference Material
4
Digital Voice Systems AMBE-2020 Supplementary Manual (4 pages)
Using DVSI’s AMBE-2000 and AMBE-2020 Vocoder Chips with the Texas Instruments’ TLV320AIC10 General Purpose CODEC
Brand:
Digital Voice Systems
| Category:
Recording Equipment
| Size: 0 MB
Table of Contents
Configuration
1
Initialization Procedure
2
Recommended TLV320AIC10 Configuration Data
3
Reference Materials
3
TLV320AIC10 Reference Schematic (Analog Section)
4
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Digital Voice Systems AMBE-2020 Implementation Manual (2 pages)
Implementing the AMBE-2000/2020 Vocoder Chip at Data Rate 2350 bps Voice and 50 bps FEC for Compatibility with the AMBE-1000 Vocoder Chip
Brand:
Digital Voice Systems
| Category:
Recording Equipment
| Size: 0 MB
Table of Contents
Implementing the AMBE-2000/2020™ Vocoder Chip
1
Compatible Mode Procedure Step 1
1
First Packet
1
Compatible Mode Procedure Step 2
2
Special Control Packet
2
Compatible Mode Procedure Step 3
2
Control Word 2 – (16-Bits)
2
Digital Voice Systems AMBE-2020 Specifications (2 pages)
Vocoder Chip
Brand:
Digital Voice Systems
| Category:
Recording Equipment
| Size: 0 MB
Table of Contents
Features
1
Benefits
1
Low Cost
1
Simple Integration
1
Specifications
2
Digital Voice Systems AMBE-2020 Supplementary Manual (2 pages)
Soft Decision Error Decoding with the AMBE-2000/2020 Vocoder Chips
Brand:
Digital Voice Systems
| Category:
Recording Equipment
| Size: 0 MB
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