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XRT71D04IV Datasheet

  • XRT71D04IV

  • 4 CHANNEL E3/DS3/STS-1 JITTER ATTENUATOR, STS-1 TO DS3 DESYN...

  • 248.91KB

  • 22頁(yè)

  • EXAR   EXAR

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謾莽
APRIL 2001
XRT71D04
REV. 1.1.1
4 CHANNEL E3/DS3/STS-1 JITTER ATTENUATOR, STS-1 TO DS3 DESYNCHRONIZER
GENERAL DESCRIPTION
The XRT71D04 is a four channel, single chip Jitter At-
tenuator, that meets the Jitter transfer characteristic
requirements specified in the ETSI TBR-24, Bellcore
GR-499 and GR-253 standards.
In addition, the XRT71D04 also meets the Jitter and
Wander specifications described in the ANSI
T1.105.03b 1997, Bellcore GR-253 and GR-499 stan-
dards for Desynchronizing and Pointer adjustments in
the DS3 to STS-SPE mapping applications.
FEATURES
鈥?/div>
Meets the E3/DS3/STS-1 jitter requirements
鈥?/div>
No external components required
鈥?/div>
Compliant with jitter transfer template outlined in
ITU G.751, G.752, G.755, GR-499-CORE,1995
GR-253-CORE standards
F
IGURE
1. B
LOCK
D
IAGRAM
(
ONE CHANNEL
)
鈥?/div>
Meets output jitter requirement as specified by
ETSI TBR24
鈥?/div>
Meets the Jitter and Wander specifications
described in T1.105.03b,GR-253 and GR-499 stan-
dards
鈥?/div>
Selectable buffer size of 16 and 32 bits
鈥?/div>
Jitter attenuator can be disabled
鈥?/div>
Available in a 80 pin TQFP package
鈥?/div>
Single 3.3V or 5.0V supply.
鈥?/div>
Operates over - 40
0
C to 85
0
C temperature range.
APPLICATIONS
鈥?/div>
E3/DS3 Access Equipment
鈥?/div>
STS-SPE to DS3 Mapper
鈥?/div>
DSLAMs
Timing Control Block /
Phase locked Loop
ICT
DJA_n
RClk_n
RClkES
RPOS_n
RNEG_n
FSS
Write Clock
16/32 Bit FIFO
Read Clock
MCLK_n
STS1_n
DS3/E3_n
RRCLK_n
RRPOS_n
RRNEG_n
FL_n
Channel 0
Channel 1
MODE_CTRL
Channel 2
Channel 3
HOST
Reset
Microprocessor Serial
Interface
XRT71D04
n = 0, 1, 2, 3
CS
SDI
SDO SClk
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
鈥?/div>
(510) 668-7000
鈥?/div>
FAX (510) 668-7017
鈥?/div>
www.exar.com

XRT71D04IV 產(chǎn)品屬性

  • XRT71D04

  • 94

  • 集成電路 (IC)

  • 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器

  • -

  • *

  • 是

  • 時(shí)鐘

  • 時(shí)鐘

  • 1

  • 4:3

  • 無(wú)/無(wú)

  • 44.736MHz

  • 無(wú)/無(wú)

  • 3.135 V ~ 5.25 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 80-LQFP

  • 80-TQFP（14x14）

  • 托盤(pán)

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