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XRT8010IL Datasheet

  • XRT8010IL

  • 312MHZ CLOCK & CRYSTAL MULTIPLIER WITH LVDS OUTPUTS

  • 258.11KB

  • 13頁

  • EXAR   EXAR

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XRT8010
312MHZ CLOCK & CRYSTAL MULTIPLIER WITH LVDS OUTPUTS
NOVEMBER 2003
REV. 1.0.2
s
DESCRIPTION
The XRT8010 is a monolithic analog phase locked
loop that provides a high frequency LVDS clock
output, using a low frequency crystal or reference
clock. It is designed for SONET/SDH and other low
jitter applications.The high performance of the IC
provides a very low jitter LVDS clock output up to 320
MHz, while operating at 3.3 volts. The XRT8010 has
a selectable 8x or 16x internal multiplier for an
external crystal or signal source. The Output Enable
pin provides a true disconnect for the LVDS output.
The very compact (4 x 4 mm) low inductance
package is ideal for high frequency operation.
Telecommunications Sytems
FEATURES
鈥?/div>
156 or 320 MHz Operating Range
鈥?/div>
Low Output Jitter:
s
0.0009 UI
RMS
typical @ 155.52 MHz, per
Telcordia GR-253-CORE for OC-3.
Optimized for 15 to 40 MHz crystals
Uses parallel fundamental mode
鈥?/div>
On Chip Crystal Oscillator Circuit
s
s
APPLICATIONS
鈥?/div>
Selectable 8x or 16x multiplier
鈥?/div>
Selectable 梅1 or 梅2 LVDS output
鈥?/div>
LVDS output meets TIA/EIA 644A Specification
(2001)
鈥?/div>
Gigabit Ethernet
鈥?/div>
SONET/SDH
鈥?/div>
SPI-4 Phase 2
鈥?/div>
8x or 16x Clock Multiplier for
s
Computer
鈥?/div>
3.3V Low power CMOS: <80 mW typical
鈥?/div>
-40擄C to +85擄C operating temperature
鈥?/div>
Extremely small 16-lead QFN package
F
IGURE
1. XRT8010 B
LOCK
D
IAGRAM
15-40 M H z
C rys tal
X T A L1
12 - 20 pF
+3.3V
A V
DD
A V
DD
R
EXT
10k
鈩?/div>
O V
DD
X TA L2
1 2 - 2 0 pF
X R T 801 0
V oltage R eferenc e
&
B ias G enerator
O sc illator
C ircuit &
Input B uffer
VCO
C alibration Logic
P has e
D etec tor
C harge
P um p
Loop
Filter
S electable
VCO
梅
1 or
梅
2
D iv ider
O U TP
LV D S O utput
O U TN
F eedbac k D iv ider
梅
8 or 16
AGND
(C ry stal)
AG ND
AG ND
FS 1
FS 0
PD
OE
O
GND
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
鈥?/div>
(510) 668-7000
鈥?/div>
FAX (510) 668-7017
鈥?/div>
www.exar.com

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    SINGLE CHANNEL DS1/CEPT LINE INTERFACE UNIT
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  • 英文版
    SINGLE-CHANNEL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVER...
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  • 英文版
    SINGLE-CHANNEL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVER...
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  • 英文版
    QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITT...
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  • 英文版
    OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JIT...
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  • 英文版
    OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JIT...
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  • 英文版
    OCTAL T1/E1/J1 FRAMER
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    BITS (BUILDING INTEGRATED TIMING SUPPLY) CLOCK EXTRACTOR
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