DS2149 Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Lista de partido

DS2149

5V T1/J1 Line Interface Unit

Maxim Integrated 

CR1 (B010000): Control Register 1

MSb

JASEL1 JASEL0 ENCENB UNIENB L3

L2

LSb

L1

L0

SYMBOL

JASEL1

JASEL0

ENCENB

UNIENB

L3

L2

L1

L0

POSITION

CR1.7

CR1.6

CR1.5

CR1.4

CR1.3

CR1.2

CR1.1

CR1.0

FUNCTION

Jitter attenuator select (Table 4-C)

Jitter attenuator select (Table 4-C)

B8ZS and NRZ control (Table 4-D)

BPV and NRZ control (Table 4-D)

Line build-out control (Table 4-E)

Line build-out control (Table 4-E)

Line build-out control (Table 4-E)

Line build-out control (Table 4-E)

Table 4-C. Jitter Attenuator Selection

JASEL1

0

1

X

JASEL0

1

1

0

JITTER ATTENUATOR FUNCTION

Transmit path

Receive path

Disabled

Table 4-D. Line Code and Interface Selection

UNIENB

0

1

X

ENCENB

0

0

1

LINE CODE

AMI

AMI

B8ZS

INTERFACE

Bipolar

NRZ

NRZ

Table 4-E. Line Build-out Selection

L3 L2 L1 L0 APPLICATION OUTPUT SIGNAL

0000

0010

0100

0110

0001

0011

0101

0111

1001

1011

1100

1101

1110

1111

T1 Long Haul

T1 Long Haul

T1 Long Haul

T1 Long Haul

T1 Long Haul

T1 Long Haul

T1 Long Haul

T1 Long Haul

D4 Short Haul

T1 Short Haul

T1 Short Haul

T1 Short Haul

T1 Short Haul

T1 Short Haul

0dB

-7.5dB

-15dB

-22.5dB

0dB

-7.5dB

-15dB

-22.5dB

6V

DSX-1 (0ft to 133ft)

DSX-1 (133ft to 266ft)

DSX-1 (266ft to 399ft)

DSX-1 (399ft to 533ft)

DSX-1 (533ft to 655ft)

Rx GAIN (dB)

36

36

36

36

26

26

26

26

18

18

18

18

18

18

DS2149

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