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AS3400 AS3410 AS3430 1v0

Data Sheet - C o n t e n t s

Contents

1 General Description ..................................................................................................................................................................

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2 Key Features.............................................................................................................................................................................

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3 Applications...............................................................................................................................................................................

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4 Pin Assignments .......................................................................................................................................................................

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4.1 Pin Descriptions.................................................................................................................................................................................... 5

5 Absolute Maximum Ratings ......................................................................................................................................................

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6 Electrical Characteristics...........................................................................................................................................................

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7 Typical Operating Characteristics .............................................................................................................................................

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8 Detailed Description................................................................................................................................................................

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8.1 Audio Line Input.................................................................................................................................................................................. 12

8.1.1 Gain Stage................................................................................................................................................................................. 12

8.1.2 Parameter.................................................................................................................................................................................. 12

8.2 Microphone Input................................................................................................................................................................................ 13

8.2.1 Gain Stage & Limiter.................................................................................................................................................................. 13

8.2.2 Supply........................................................................................................................................................................................ 13

8.2.3 Parameter.................................................................................................................................................................................. 14

8.3 Headphone Output ............................................................................................................................................................................. 15

8.3.1 Input Multiplexer ........................................................................................................................................................................ 15

8.3.2 No-Pop Function........................................................................................................................................................................ 15

8.3.3 No-Clip Function ........................................................................................................................................................................ 15

8.3.4 Over-Current Protection............................................................................................................................................................. 15

8.3.5 Parameter.................................................................................................................................................................................. 16

8.4 Operational Amplifier.......................................................................................................................................................................... 16

8.4.1 Parameter.................................................................................................................................................................................. 16

8.5 SYSTEM............................................................................................................................................................................................. 17

8.5.1 Power Up/Down Conditions....................................................................................................................................................... 17

8.5.2 Start-up Sequence..................................................................................................................................................................... 17

8.5.3 Mode Switching ......................................................................................................................................................................... 18

8.5.4 Status Indication ........................................................................................................................................................................ 19

8.6 VNEG Charge Pump .......................................................................................................................................................................... 19

8.6.1 Parameter.................................................................................................................................................................................. 19

8.7 OTP Memory & Internal Registers...................................................................................................................................................... 19

8.7.1 Register & OTP Memory Configuration ..................................................................................................................................... 19

8.7.2 OTP Fuse Burning..................................................................................................................................................................... 20

8.8 2-Wire-Serial Control Interface........................................................................................................................................................... 21

8.8.1 Protocol...................................................................................................................................................................................... 21

8.8.2 Parameter.................................................................................................................................................................................. 24

9 Register Description................................................................................................................................................................

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10 Application Information .........................................................................................................................................................

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11 Package Drawings and Markings..........................................................................................................................................

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12 Ordering Information.............................................................................................................................................................

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