XRT83SL30
2
SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.0.1
FEATURES
Fully integrated single-channel short-haul transceiver for E1,T1 or J1 applications
Programmable Transmit Pulse Shaper for E1,T1 or J1 short-haul interfaces
Five fixed transmit pulse settings for T1 short-haul applications plus a fully programmable waveform
generator for transmit output pulse shaping
High receiver interference immunity
Receive monitor mode handles 0 to 29dB resistive attenuation along with 0 to 6dB of cable attenuation for
both T1 and E1 modes
Supports 75 and 120 (E1), 100 (T1) and 110 (J1) applications.
Internal and/or external impedance matching for 75,100, 110 and 120.
Tri-State transmit output and receive input capability for redundancy applications
Provides High Impedance for Tx and Rx during power off
Transmit return loss meets or exceeds ETSI 300 166 standard
On-chip digital clock recovery circuit for high input jitter tolerance
Crystal-less digital jitter attenuator with 32-bit or 64-bit FIFO Selectable either in transmit or receive path
On-chip frequency multiplier generates T1 or E1 Master clocks from variety of external clock sources
On-chip transmit short-circuit protection and limiting, and driver fail monitor output (DMO)
Receive loss of signal (RLOS) output
On-chip HDB3/B8ZS/AMI encoder/decoder
QRSS pattern generation and detection for testing and monitoring
Error and Bipolar Violation Insertion and Detection
FIGURE 2. BLOCK DIAGRAM OF THE XRT83SL30 T1/E1/J1 LIU (HARDWARE MODE)
HW/HOST
GAUGE
JASEL1
JASEL0
RXTSEL
TXTSEL
TERSEL1
TERSEL0
RXRES1
RXRES0
ICT
MCLKE1
MCLKT1
CLKSEL[2:0]
TXTEST[0:2]
INSBPV
TPOS / TDATA
TNEG / CODES
TCLK
QRPD
RCLK
RNEG / LCV
RPOS / RDATA
NLCD
RLOS
RTIP
RRING
MASTER CLOCK SYNTHESIZER
QRSS
PATTERN
GENERATOR
DMO
TTIP
TRING
TXON
HDB3/
B8ZS
ENCODER
TX/RX JITTER
ATTENUATOR
TIMING
CONTROL
TX FILTER
& PULSE
SHAPER
LINE
DRIVER
LOCAL
ANALOG
LOOPBACK
REMOTE
LOOPBACK
DIGITAL
LOOPBACK
HDB3/
B8ZS
DECODER
TX/RX JITTER
ATTENUATOR
TIMING &
DATA
RECOVERY
PEAK
DETECTOR
& SLICER
QRSS
DETECTOR
NETWORK
LOOP
DETECTOR
RX
EQUALIZER
CONTROL
AIS
DETECTOR
LOS
DETECTOR
LBO[3:0]
LOOPBACK
ENABLE
JA
SEL
ECT
NLCD ENABLE
QRSS ENABLE
HARWARE CONTROL
TEST
JABW
TRATIO
SR/DR
EQC[4:0]
TCLKE
RCLKE
RXMUTE
ATAOS
DRIVE
MONITOR
DFM
MCLKOUT
LOOP1
LOOP0
AISD
RESET
TAOS
ENABLE