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XRT71D03 Datasheet(PDF) 1 Page - Exar Corporation

Part No. XRT71D03
Description  3 CHANNEL E3/DS3/STS-1 JITTER ATTENUATOR
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Maker  EXAR [Exar Corporation]
Homepage  http://www.exar.com
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XRT71D03 Datasheet(HTML) 1 Page - Exar Corporation

 
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Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
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XRT71D03
3 CHANNEL E3/DS3/STS-1 JITTER ATTENUATOR
SEPTEMBER 2001
REV. 1.2.0
GENERAL DESCRIPTION
The XRT71D03 is a three channel, single chip Jitter
Attenuator, that meets the Jitter transfer characteris-
tics requirements specified in the ETSI TBR-24,
Bellcore GR-499 and GR-253 standards.
In addition, the XRT71D03 also meets the Jitter and
Wander specifications described in the ANSI
T1.105.03b 1997, Bellcore GR-253 and GR-499 stan-
dards.
FEATURES
• Meets the E3/DS3/STS-1 jitter requirements
• No external components required
• Compliant with jitter transfer template outlined in
ITU G.751, G.752, G.755, GR-235-CORE, GR-
499-CORE,1995 standards
• Meets output jitter requirement as specified by
ETSI TBR24
• Meets the Jitter and Wander specifications
described in T1.105.03b,GR-253 and GR-499 stan-
dards.
• Selectable buffer size of 16 and 32 bits
• Jitter attenuator can be disabled
• Available in a 64 pin LQFP package.
• Single 3.3V or 5.0V supply.
• Operates over - 40° C to 85° C temperature range.
APPLICATIONS
• E3/DS3 Access Equipment.
• DSLAMs
FIGURE 1. BLOCK DIAGRAM OF THE XRT71D03
Timing Control Block
Phase locked Loop
RRCLK_n
RRPOS_n
RRNEG_n
FL_n
DJA_n
RClk_n
RClkES
RPOS_n
RNEG_n
FSS
ICT
MCLK_n
STS1_n
DS3/E3_n
Microprocessor Serial
Interface
CS
SDI
SDO SClk
HOST
Reset
Channel 0
Channel 1
Channel 2
XRT71D03
n = 0, 1, 2
MODE_CTRL
Read Clock
Write Clock
16/32 Bit FIFO
RRCLKES


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