manuais Digital Voice Systems AMBE-3000

Digital voice systems AMBE-3000 Especificações (111 páginas)

Marca: Digital-voice-systems | Categoria: Descodificadores | Tamanho: 3.10 MB |

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AMBE-3000F™ Vocoder Chip

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DVSI Confidential Proprietary

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(Subject to Change) Page v

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(Subject to Change) Page x

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1 Product Introduction

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1.3 Typical Applications

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2 Hardware Information

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2.2 Package Details

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2.3 Pin Assignment Layouts

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A B C D E F G H J K L M N P

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(Subject to Change) Page 9

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2.5 Pin Out Table

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PARITY_ENABLE 79

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Input Enable parity bit

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Table 1 Pinout List

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2.7.1 External Clock Source

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2.7.2 Crystal Oscillator

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Table 7 Voltage Supply Pins

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3.6 Reset Behavior

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Figure 11 TX_RDY after Reset

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Figure 12 Output Levels

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3.8 Power-Down Sequencing:

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3.9 Low Power Modes

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3.9.1 Run State

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3.9.2 Idle State

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3.9.3 Standby State

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3.9.4 Halt State

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3.9.5 Power Modes

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4.2 Interface Selection

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4.4 Vocoder State

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Figure 18 Typical Echo Path

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Table 11 Companding Control

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5 I/O Management

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Table 13 ECMODE_IN Flags

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Table 14 ECMODE_OUT FLAGS

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Table 15 DCMODE_IN Flags

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Table 16 DCMODE_OUT Flags

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5.2 Codec mode

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“0 to Transition”“1”

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“Packet_ _Zone”Uncertainty

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“aperiodic packets”

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5.3 Packet Mode

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Figure 29 Packet Mode

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5.5 SPI Interface

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5.6 UART Interface

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5.7 McBSP Interface

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5.8 Parallel Interface

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Table 26 PPT Timing

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Figure 36 Vocoder Front End

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Diagram

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6.1 Overview

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6.2 Codec Mode Operation

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6.3 Packet Mode Operation

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6.4 Packet Interfaces

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6.5 Packet Format

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6.5.3 TYPE (1 byte)

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6.5.4 Packet Fields

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Table 59 PKT_CODECSTOP Field

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Table 61 PKT_CHANFMT Field

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samples dcmode

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Table 64 PKT_SPCHFMT Field

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0x54 0x46 0x00

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Table 71 PKT_READY Field

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Table 72 PKT_HALT Field

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Table 73 PKT_RESET Field

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6.7.1 Speech Packet Fields

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Table 100 CMODE Field Format

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Table 103 TONE Field Format

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6.11 Example Packets

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7 Appendices

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Table 115 Rate Index Numbers

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8 Support

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Digital Voice Systems, Inc

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10 IC Chip Software Errata

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Release 007 09/10/2009

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Release 014 08/31/2012

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11 History of Revisions

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Digital Voice Systems dispositivos