YTD428 データシートの表示（PDF） - Yamaha Corporation

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メーカー

YTD428

IDSU ISDN DSU for Terminal Equipment

Yamaha Corporation 

CONTENTS

-1-

Contents

1. INTRODUCTION ..................................................................................... 2

1.1 Features ................................................................................................................................ 3

2. BLOCK DIAGRAM .................................................................................. 4

2.1 Internal Block Diagram .......................................................................................................... 4

2.2 DSU Configuration Example ................................................................................................. 5

3. PIN DESCRIPTIONS .............................................................................. 7

3.1 Pin Assignments .................................................................................................................... 7

3.2 Pin Functions ........................................................................................................................ 8

4. DETAILS OF FUNCTIONS.................................................................... 13

4.1 U Reference Point Section .................................................................................................. 13

4.2 Circuit Termination / Line Termination Section .................................................................... 13

4.3 Interface Switch Section ...................................................................................................... 14

4.4 T Reference Interface Section ............................................................................................ 15

5. ELECTRICAL CHARACTERISTICS ..................................................... 16

5.1 Absolute Maximum Ratings ................................................................................................. 16

5.2 Recommended Operating Conditions ................................................................................. 16

5.3 DC Characteristics .............................................................................................................. 17

5.4 AC Characteristics ............................................................................................................... 18

6. PIN DESCRIPTIONS ............................................................................ 22

REFERENCE CIRCUIT ............................................................................ 23

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