XRT83SH38 データシートの表示（PDF） - Exar Corporation

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XRT83SH38

14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT

Exar Corporation 

REV. 1.0.7

XRT83SH38

8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT

SIGNAL NAME

RTIP0

RTIP1

RTIP2

RTIP3

RTIP4

RTIP5

RTIP6

RTIP7

RRING0

RRING1

RRING2

RRING3

RRING4

RRING5

RRING6

RRING7

RXMUTE

BGA

LEAD #

C1

G1

G18

C18

U1

L1

L18

T18

D1

F1

F18

D18

T1

M1

M18

R18

T12

TYPE

DESCRIPTION

I Receive Differential Tip Input

RTIP is the positive differential input from the line interface. Along with the RRING

signal, these pins should be coupled to a 1:1 transformer for proper operation.

I Receive Differential Ring Input

RRING is the negative differential input from the line interface. Along with the RTIP

signal, these pins should be coupled to a 1:1 transformer for proper operation.

I Receive Data Muting

Hardware Mode Only

This pin is AND-ed with each of the RLOS functions on a per channel basis. There-

fore, if this pin is pulled "High" and a given channel experiences a loss of signal, then

the RPOS/RNEG output pins are automatically pulled "Low" to prevent data chatter-

ing. To disable this feature, the RxMUTE pin must be pulled "Low".

NOTE: This pin is internally pulled “High” with a 50kΩ resistor

6

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