DS2148 Dallas Semiconducotr, DS2148 Datasheet - Page 3

• Manufacturer Part Number: DS2148
• Description: 5V E1/T1/J1 Line Interface
• Manufacturer: Dallas Semiconducotr

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10. DS21Q48 QUAD LIU......................................................................................................................... 56
11. DC CHARACTERISTICS.................................................................................................................. 60
12. AC CHARACTERISTICS.................................................................................................................. 62
13. MECHANICAL DIMENSIONS......................................................................................................... 71
3.1
5.1
5.2
5.3
6.1
8.1
8.2
8.3
8.4
8.5
9.1 RECEIVER .................................................................................................................................... 46
9.2
9.3
9.4
13.1 MECHANICAL DIMENSIONS—QUAD VERSION................................................................. 73
8.2.1
8.2.2
8.2.3
8.2.4
8.4.1
LIST OF FIGURES............................................................................................................................... 4
LIST OF TABLES ................................................................................................................................ 5
INTRODUCTION................................................................................................................................. 6
PIN DESCRIPTION ............................................................................................................................. 9
HARDWARE MODE ......................................................................................................................... 22
CONTROL REGISTERS.................................................................................................................... 28
STATUS REGISTERS ....................................................................................................................... 34
DIAGNOSTICS .................................................................................................................................. 39
ANALOG INTERFACE ..................................................................................................................... 46
DOCUMENT REVISION HISTORY ............................................................................................ 6
REGISTER MAP .......................................................................................................................... 23
PARALLEL PORT OPERATION................................................................................................ 24
SERIAL PORT OPERATION ...................................................................................................... 24
DEVICE POWER-UP AND RESET ............................................................................................ 31
IN-BAND LOOP CODE GENERATION AND DETECTION ................................................... 39
LOOPBACKS ............................................................................................................................... 43
PRBS GENERATION AND DETECTION ................................................................................. 44
ERROR COUNTER...................................................................................................................... 44
ERROR INSERTION.................................................................................................................... 45
TRANSMITTER ........................................................................................................................... 47
JITTER ATTENUATOR .............................................................................................................. 47
G.703 SYNCHRONIZATION SIGNAL ...................................................................................... 48
Remote Loopback (RLB)......................................................................................................... 43
Local Loopback (LLB)............................................................................................................ 43
Analog Loopback (LLB) ......................................................................................................... 44
Dual Loopback (DLB) ............................................................................................................ 44
Error Counter Update ............................................................................................................ 45
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