Digital Voice Systems AMBE-3000 Specifications download pdf (Page 5)

Table of Contents

1 PRODUCT INTRODUCTION ..............................................................................................1

1.1 Advances in Vocoder Design ....................................................................................................................1

1.2 AMBE-3000™ Vocoder Chip Features .....................................................................................................1

1.3 Typical Applications...................................................................................................................................2

2 HARDWARE INFORMATION.............................................................................................3

2.1 Special Handling and Moisture Sensitivity ................................................................................................3

2.2 Package Details.........................................................................................................................................4

2.2.1 128-pin Low-Profile Quad Flat Pack (LQFP)..................................................................................................4

2.2.2 179 Pin Ball Grid Array (BGA)........................................................................................................................5

2.3 Pin Assignment Layouts............................................................................................................................6

2.3.1 LQFP Package..................................................................................................................................................6

2.3.2 BGA Package Pins (Bottom View)....................................................................................................................7

2.4 AMBE-3000F™ Vocoder Chip Markings...................................................................................................8

2.4.1 AMBE-3000F™ Vocoder Chip LQFP Markings..............................................................................................8

2.4.2 AMBE-3000F™ Vocoder Chip BGA Markings................................................................................................9

2.5 Pin Out Table...........................................................................................................................................10

2.6 Hardware Configuration Pins...................................................................................................................18

2.7 Crystal / Oscillator Usage........................................................................................................................19

2.7.1 External Clock Source ....................................................................................................................................19

2.7.2 Crystal Oscillator............................................................................................................................................19

2.7.3 Input Clock Requirements...............................................................................................................................20

3 ELECTRICAL CHARACTERISTICS AND REQUIREMENTS..........................................21

3.1 Normal Operating Conditions..................................................................................................................21

3.2 Recommended Operating Conditions.....................................................................................................21

3.3 Absolute Maximum Ratings.....................................................................................................................21

3.4 Thermal Resistance Characteristics........................................................................................................22

3.5 Power Sequencing Requirements...........................................................................................................22

3.6 Reset Behavior........................................................................................................................................23

3.6.1 Reset to Ready Packet Timing.........................................................................................................................23

3.6.2 Behavior of RTSn and TX_RDY following a RESET.......................................................................................23

3.7 Signal Transition Levels ..........................................................................................................................24

3.8 Power-Down Sequencing:.......................................................................................................................25

3.9 Low Power Modes...................................................................................................................................25

3.9.1 Run State.........................................................................................................................................................26

3.9.2 Idle State.........................................................................................................................................................26

3.9.3 Standby State...................................................................................................................................................26

3.9.4 Halt State ........................................................................................................................................................26

3.9.5 Power Modes ..................................................................................................................................................27

3.9.6 Low power mode when using the UART Packet Interface..............................................................................27

3.9.7 Low Power Mode when using the McBSP Packet Interface ...........................................................................27

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Digital Voice Systems AMBE-3000 Specifications Page 5

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