XRT83L314ES Exar, XRT83L314ES Datasheet - Page 39

• Manufacturer Part Number: XRT83L314ES
• Description: LIN Transceivers
• Manufacturer: Exar

Specifications of XRT83L314ES

• Product Category: LIN Transceivers
• Rohs: yes

With digital loopback activated, the transmit input data at TCLK/TPOS/TNEG is looped back to the receive
output data at RCLK/RPOS/RNEG. The digital loopback mode includes the Transmit JA (if enabled). The
receive input data at RTIP/RRING is ignored while valid transmit output data continues to be sent to the line. A
simplified block diagram of digital loopback is shown in Figure 33.
F
With dual loopback activated, the remote loopback is combined with the digital loopback. A simplified block
diagram of dual loopback is shown in Figure 34.
F
4.1.3
4.1.4
IGURE
IGURE
33. S
34. S
Digital Loopback
Dual Loopback
IMPLIFIED
IMPLIFIED
RNEG
TPOS
TNEG
RCLK
RPOS
RNEG
TCLK
TPOS
TNEG
RCLK
RPOS
TCLK
B
B
LOCK
LOCK
NLC/PRBS/QRSS
14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
NLC/PRBS/QRSS
D
D
IAGRAM OF
IAGRAM OF
Encoder
Decoder
Encoder
Decoder
D
D
IGITAL
UAL
JA
JA
JA
JA
L
OOPBACK
L
OOPBACK
35
Recovery
Data and
Control
Timing
Control
Data and
Recovery
Timing
Clock
Clock
TAOS
TAOS
Tx
Tx
Rx
Rx
TRING
RRING
TRING
RRING
TTIP
RTIP
TTIP
RTIP
XRT83L314
REV. 1.0.0