XRT75L02 datasheet(9/50 Pages) EXAR

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XRT75L02

TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER

REV. 1.0.3

RNEG_0/LCV_0

RNEG_1/LCV_1

Receive Negative Data Output/Line Code Violation Indicator -

Channel 0:

Receive Negative Data Output/Line Code Violation Indicator -

Channel 1:

In Dual Rail mode, a negative pulse is output through RNEG.

Line Code Violation Indicator - Channel n:

If configured in Single Rail mode then Line Code Violation will be output.

RRING_0

RRING_1

Receive Ring Input - Channel 0:

Receive Ring Input - Channel 1:

These pins along with RTIP receive the bipolar line signal from the remote

DS3/E3/STS-1 Terminal.

RTIP_0

RTIP_1

Receive TIP Input - Channel 0:

Receive TIP Input - Channel 1:

These pins along with RRING receive the bipolar line signal from the Remote

DS3/E3/STS-1 Terminal.

RxClkINV/

Hardware Mode: RxClk INVERT

Host Mode: Chip Select:

Function of this pin depends on whether the XRT75L02 is configured to operate

in Hardware mode or Host mode.

In Hardware mode, setting this input pin “High” configures the Receiver Sec-

tion of all channels to invert the RxClk_n output signals and outputs the recov-

ered data via RPOS_n and RNEG_n on the falling edge of RxClk_n.

NOTE: If the XRT75L02 is configured in HOST mode, this pin functions as CS

input pin (please refer to the pin description for Microprocessor

Interface).

RECEIVE INTERFACE

PIN #

SIGNAL NAME

TYPE

DESCRIPTION

XRT75L02 Datasheet(PDF) 9 Page - Exar Corporation