XRT83VSH314ES Exar, XRT83VSH314ES Datasheet - Page 35

• Manufacturer Part Number: XRT83VSH314ES
• Description: Peripheral Drivers & Components - PCIs 14 CHT1/E1LIUSH LOW COST VERSION
• Manufacturer: Exar

Specifications of XRT83VSH314ES

• Product Category: Peripheral Drivers & Components - PCIs
• Rohs: yes

REV. 1.0.1
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
F
With dual loopback activated, the remote loopback is combined with the digital loopback. A simplified block
diagram of dual loopback is shown in
F
5.1.3
5.1.4
IGURE
IGURE
22. S
23. S
Digital Loopback
Dual Loopback
IMPLIFIED
IMPLIFIED
RPOS
RNEG
RNEG
TPOS
TNEG
RCLK
TPOS
TNEG
RPOS
TCLK
TCLK
RCLK
B
B
LOCK
LOCK
QRSS/PRBS
QRSS/PRBS
D
D
Decoder
Encoder
Encoder
Decoder
IAGRAM OF
IAGRAM OF
Figure
D
D
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
23.
IGITAL
UAL
JA
JA
JA
JA
L
OOPBACK
L
OOPBACK
32
Figure
Recovery
Data and
Control
Timing
Control
Clock
Data and
Recovery
Timing
Clock
22.
TAOS
TAOS
Tx
Tx
Rx
Rx
TRING
TTIP
RRING
RRING
XRT83VSH314
TRING
RTIP
RTIP
TTIP