DS21348 Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated

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DS21348

3.3V E1/T1/J1 Line Interface

Dallas Semiconductor -> Maxim Integrated 

TABLE OF CONTENTS

DS21348/Q348

1. LIST OF FIGURES............................................................................................................................... 4

2. LIST OF TABLES ................................................................................................................................ 5

3. INTRODUCTION................................................................................................................................. 6

3.1 DOCUMENT REVISION HISTORY ............................................................................................ 6

4. PIN DESCRIPTION ............................................................................................................................. 9

5. HARDWARE MODE ......................................................................................................................... 22

5.1 REGISTER MAP .......................................................................................................................... 23

5.2 PARALLEL PORT OPERATION................................................................................................ 23

5.3 SERIAL PORT OPERATION ...................................................................................................... 24

6. CONTROL REGISTERS.................................................................................................................... 24

6.1 DEVICE POWER-UP AND RESET ............................................................................................ 31

7 STATUS REGISTERS ....................................................................................................................... 34

8. DIAGNOSTICS .................................................................................................................................. 39

8.1 IN-BAND LOOP CODE GENERATION AND DETECTION ................................................... 39

8.2 LOOPBACKS ............................................................................................................................... 43

8.2.1 Remote Loopback (RLB)......................................................................................................... 43

8.2.2 Local Loopback (LLB)............................................................................................................ 43

8.2.3 Analog Loopback (LLB).......................................................................................................... 44

8.2.4 Dual Loopback (DLB) ............................................................................................................ 44

8.3 PRBS GENERATION & DETECTION ....................................................................................... 44

8.4 ERROR COUNTER...................................................................................................................... 44

8.4.1 Error Counter Update ............................................................................................................ 45

8.5 ERROR INSERTION.................................................................................................................... 45

9. ANALOG INTERFACE ..................................................................................................................... 46

9.1 RECEIVER..................................................................................................................................... 46

9.2 TRANSMITTER ........................................................................................................................... 47

9.3 JITTER ATTENUATOR .............................................................................................................. 47

9.4 G.703 SYNCHRONIZATION SIGNAL ...................................................................................... 48

10. DS21Q348 QUAD LIU....................................................................................................................... 55

11. DC CHARACTERISTICS.................................................................................................................. 59

12. AC CHARACTERISTICS.................................................................................................................. 61

13. MECHANICAL DIMENSIONS......................................................................................................... 70

13.1 MECHANICAL DIMENSIONS—QUAD VERSION................................................................. 72

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