XRT83SL314ES Exar, XRT83SL314ES Datasheet - Page 21

• Manufacturer Part Number: XRT83SL314ES
• Description: LIN Transceivers 14 CHT1/E1 LIUSH
• Manufacturer: Exar

Specifications of XRT83SL314ES

• Product Category: LIN Transceivers
• Rohs: yes

xr
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
The main objective of the equalizer is to amplify an input attenuated signal to a pre-determined amplitude that
is acceptable to the peak detector circuit. Using feedback from the peak detector, the equalizer will gain the
input up to the maximum value specified by the equalizer control bits, in the appropriate channel register,
normalizing the signal.
processed within the peak detector and slicer circuit. A simplified block diagram of the equalizer and peak
detector is shown in Figure 6.
F
The ability to monitor the cable loss attenuation of the receiver inputs is a valuable feature. The XRT83SL314
contains a per channel, read only register for cable loss indication. CLOS[5:0] is a 6-Bit binary word that
reports the value of cable loss in 1dB steps. An example of -15dB cable loss attenuation is shown in Figure 7.
F
2.2
2.3
IGURE
IGURE
6. S
7. S
Equalizer Control
Cable Loss Indicator
IMPLIFIED
IMPLIFIED
B
B
LOCK
LOCK
Once the signal has reached the pre-determined amplitude, the signal is then
D
D
-15dB Attenuated
IAGRAM OF THE
IAGRAM OF THE
Signal
-15dB of Cable
Loss
Detector &
Slicer
Peak
E
C
QUALIZER AND
Rx Equalizer
ABLE
Control
L
18
Rx Equalizer
OSS
Equalizer and
Peak Detector
I
NDICATOR
P
EAK
CLOS[5:0] = 0x0Fh
(15dec = 0Fhex)
D
Read Only
ETECTOR
RRING
RTIP
XRT83SL314
XRT83SL314
REV. 1.0.1