550RC010M000DG [SILICON]
LVPECL Output Clock Oscillator, 10MHz Nom,;型号: | 550RC010M000DG |
厂家: | SILICON |
描述: | LVPECL Output Clock Oscillator, 10MHz Nom, 机械 输出元件 振荡器 |
文件: | 总15页 (文件大小:108K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Si550
REVISION D
VOLTAGE-CONTROLLED CRYSTAL OSCILLATOR (VCXO)
10 MHZ TO 1.4 GHZ
Features
Available with any frequency from
10 to 945 MHz and select
frequencies to 1.4 GHz
Internal fixed crystal frequency
ensures high reliability and low
aging
Available CMOS, LVPECL,
LVDS, and CML outputs
3.3, 2.5, and 1.8 V supply options
Industry-standard 5 x 7 mm
package and pinout
Si5602
®
3rd generation DSPLL with
superior jitter performance (0.5 ps)
3x better temperature stability than
SAW-based oscillators
Excellent PSRR performance
Pb-free/RoHS-compliant
Ordering Information:
Applications
See page 10.
SONET/SDH
xDSL
10 GbE LAN/WAN
Low-jitter clock generation
Optical modules
Clock and data recovery
Pin Assignments:
See page 9.
Description
(Top View)
®
The Si550 VCXO utilizes Silicon Laboratories’ advanced DSPLL circuitry to
provide a low-jitter clock at high frequencies. The Si550 supports any
frequency from 10 to 945 MHz and select frequencies to 1417 MHz. Unlike
traditional VCXOs, where a different crystal is required for each output
frequency, the Si550 uses one fixed crystal to provide a wide range of output
frequencies. This IC-based approach allows the crystal resonator to provide
exceptional frequency stability and reliability. In addition, DSPLL clock
synthesis provides superior supply noise rejection, simplifying the task of
generating low-jitter clocks in noisy environments typically found in
communication systems. The Si550 IC-based VCXO is factory-configurable
for a wide variety of user specifications, including frequency, supply voltage,
output format, tuning slope, and temperature stability. Specific configurations
are factory programmed at time of shipment, thereby eliminating the long
lead times associated with custom oscillators.
VC
VDD
1
2
3
6
5
4
OE
CLK–
CLK+
GND
Functional Block Diagram
VDD
Any-Frequency
Fixed
Frequency
XO
10 MHz–1.4 GHz
CLK+
CLK–
DSPLL®
Clock Synthesis
ADC
Vc
OE
GND
Rev. 1.1 4/13
Copyright © 2013 by Silicon Laboratories
Si550
Si550
1. Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter
Symbol
Test Condition
3.3 V option
2.5 V option
1.8 V option
Min
2.97
2.25
1.71
Typ
3.3
2.5
1.8
Max
3.63
2.75
1.89
Units
1
V
V
V
V
DD
Supply Voltage
Supply Current
I
Output enabled
LVPECL
CML
DD
—
—
—
—
130
117
108
98
120
108
99
mA
LVDS
CMOS
90
tristate mode
—
0.75 x V
—
60
—
—
—
75
—
mA
V
2
Output Enable (OE)
V
IH
DD
V
0.5
85
V
IL
Operating Temperature Range
T
–40
°C
A
Notes:
1. Selectable parameter specified by part number. See 3. "Ordering Information" on page 10 for further details.
2. OE pin includes a 17 k resistor to VDD
.
Table 2. VC Control Voltage Input
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
1,2,3
Control Voltage Tuning Slope
K
10 to 90% of V
—
—
—
—
—
—
33
45
90
135
180
356
—
—
—
—
—
—
V
DD
ppm/V
4
Control Voltage Linearity
L
BSL
–5
–10
9.3
500
—
±1
±5
+5
+10
10.7
—
%
%
VC
Incremental
Modulation Bandwidth
BW
10.0
—
kHz
k
V
V Input Impedance
Z
C
VC
Nominal Control Voltage
V
@ f
V /2
DD
—
CNOM
O
Control Voltage Tuning Range
V
0
V
V
C
DD
Notes:
1. Positive slope; selectable option by part number. See 3. "Ordering Information" on page 10.
2. For best jitter and phase noise performance, always choose the smallest KV that meets the application’s minimum APR
requirements. See “AN266: VCXO Tuning Slope (KV), Stability, and Absolute Pull Range (APR)” for more information.
3. KV variation is ±10% of typical values.
4. BSL determined from deviation from best straight line fit with VC ranging from 10 to 90% of VDD. Incremental slope
determined with VC ranging from 10 to 90% of VDD
.
2
Rev. 1.1
Si550
Table 3. CLK± Output Frequency Characteristics
Parameter
Symbol
Test Condition
LVDS/CML/LVPECL
CMOS
Min
10
Typ
—
Max
Units
MHz
MHz
1,2,3
f
945
160
O
Nominal Frequency
10
—
1,4
Temperature Stability
T = –40 to +85 ºC
–20
–50
–100
—
—
—
+20
+50
+100
A
ppm
1,4
Absolute Pull Range
Aging
APR
tOSC
±12
—
—
—
—
—
±375
±3
ppm
ppm
ms
Frequency drift over first year.
Frequency drift over 15 year life.
—
±10
10
5
Power up Time
—
Notes:
1. See Section 3. "Ordering Information" on page 10 for further details.
2. Specified at time of order by part number. Also available in frequencies from 970 to 1134 MHz and 1213 to 1417 MHz.
3. Nominal output frequency set by VCNOM = VDD/2.
4. Selectable parameter specified by part number.
5. Time from power up or tristate mode to fO.
Table 4. CLK± Output Levels and Symmetry
Parameter
Symbol
Test Condition
mid-level
Min
VDD – 1.42
1.1
Typ
—
Max
VDD – 1.25
1.9
Units
V
1
LVPECL Output Option
V
O
VOD
VSE
swing (diff)
—
VPP
VPP
swing (single-ended)
mid-level
0.55
—
0.95
2
LVDS Output Option
V
1.125
0.5
1.20
0.7
1.275
0.9
V
O
swing (diff)
VOD
VO
VPP
2.5/3.3 V option mid-level
1.8 V option mid-level
—
—
V
V
– 1.30
—
—
V
V
DD
– 0.36
DD
2
CML Output Option
2.5/3.3 V option swing (diff)
1.8 V option swing (diff)
1.10
0.35
0.8 x VDD
—
1.50
1.90
0.50
VDD
0.4
350
—
VPP
VPP
V
VOD
0.425
—
3
VOH
VOL
CMOS Output Option
I
= 32 mA
OH
IOL = 32 mA
—
V
Rise/Fall time (20/80%)
Symmetry (duty cycle)
tR, F
t
LVPECL/LVDS/CML
—
—
ps
ns
CMOS with C = 15 pF
—
1
L
SYM
LVPECL:
LVDS:
CMOS:
V
– 1.3 V (diff)
DD
1.25 V (diff)
/2
45
—
55
%
V
DD
Notes:
1. 50 to VDD – 2.0 V.
2. Rterm = 100 (differential).
3. CL = 15 pF
Rev. 1.1
3
Si550
Table 5. CLK± Output Phase Jitter
Parameter
Symbol
Test Condition
Kv = 33 ppm/V
Min
Typ
Max
Units
1,2,3
Phase Jitter (RMS)
for F > 500 MHz
J
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.26
0.26
—
—
ps
OUT
Kv = 45 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.27
0.26
—
—
ps
ps
ps
ps
ps
Kv = 90 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.32
0.26
—
—
Kv = 135 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.40
0.27
—
—
Kv = 180 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.49
0.28
—
—
Kv = 356 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.87
0.33
—
—
Notes:
1. Refer to AN255, AN256, and AN266 for further information.
2. For best jitter and phase noise performance, always choose the smallest KV that meets the application’s minimum APR
requirements. See “AN266: VCXO Tuning Slope (KV), Stability, and Absolute Pull Range (APR)” for more information.
3. See “AN255: Replacing 622 MHz VCSO devices with the Si550 VCXO” for comparison highlighting power supply
rejection (PSR) advantage of Si55x versus SAW-based solutions.
4. Max jitter for LVPECL output with VC=1.65V, VDD=3.3V, 155.52 MHz.
5. Max offset frequencies: 80 MHz for FOUT > 250 MHz, 20 MHz for 50 MHz < FOUT <250 MHz,
2 MHz for 10 MHz < FOUT <50 MHz.
4
Rev. 1.1
Si550
Table 5. CLK± Output Phase Jitter (Continued)
Parameter
Symbol
Test Condition
Kv = 33 ppm/V
Min
Typ
Max
Units
1,2,3,4,5
Phase Jitter (RMS)
for F of 125 to 500 MHz
J
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.37
0.33
—
—
ps
OUT
Kv = 45 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.37
0.33
0.4
—
ps
ps
ps
ps
ps
Kv = 90 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.43
0.34
—
—
Kv = 135 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.50
0.34
—
—
Kv = 180 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.59
0.35
—
—
Kv = 356 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
1.00
0.39
—
—
Notes:
1. Refer to AN255, AN256, and AN266 for further information.
2. For best jitter and phase noise performance, always choose the smallest KV that meets the application’s minimum APR
requirements. See “AN266: VCXO Tuning Slope (KV), Stability, and Absolute Pull Range (APR)” for more information.
3. See “AN255: Replacing 622 MHz VCSO devices with the Si550 VCXO” for comparison highlighting power supply
rejection (PSR) advantage of Si55x versus SAW-based solutions.
4. Max jitter for LVPECL output with VC=1.65V, VDD=3.3V, 155.52 MHz.
5. Max offset frequencies: 80 MHz for FOUT > 250 MHz, 20 MHz for 50 MHz < FOUT <250 MHz,
2 MHz for 10 MHz < FOUT <50 MHz.
Rev. 1.1
5
Si550
Table 5. CLK± Output Phase Jitter (Continued)
Parameter
Symbol
Test Condition
Kv = 33 ppm/V
Min
Typ
Max
Units
1,2,5
Phase Jitter (RMS)
for F 10 to 160 MHz
J
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
0.63
0.62
—
—
ps
OUT
CMOS Output Only
Kv = 45 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
0.63
0.62
—
—
ps
ps
ps
ps
ps
Kv = 90 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
0.67
0.66
—
—
Kv = 135 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
0.74
0.72
—
—
Kv = 180 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
0.83
0.8
—
—
Kv = 356 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
1.26
1.2
—
—
Notes:
1. Refer to AN255, AN256, and AN266 for further information.
2. For best jitter and phase noise performance, always choose the smallest KV that meets the application’s minimum APR
requirements. See “AN266: VCXO Tuning Slope (KV), Stability, and Absolute Pull Range (APR)” for more information.
3. See “AN255: Replacing 622 MHz VCSO devices with the Si550 VCXO” for comparison highlighting power supply
rejection (PSR) advantage of Si55x versus SAW-based solutions.
4. Max jitter for LVPECL output with VC=1.65V, VDD=3.3V, 155.52 MHz.
5. Max offset frequencies: 80 MHz for FOUT > 250 MHz, 20 MHz for 50 MHz < FOUT <250 MHz,
2 MHz for 10 MHz < FOUT <50 MHz.
Table 6. CLK± Output Period Jitter
Parameter
Period Jitter*
Symbol
Test Condition
RMS
Min
—
Typ
2
Max
—
Units
J
ps
PER
Peak-to-Peak
—
14
—
*Note: Any output mode, including CMOS, LVPECL, LVDS, CML. N = 1000 cycles. Refer to AN279 for further information.
6
Rev. 1.1
Si550
Table 7. CLK± Output Phase Noise (Typical)
Offset Frequency
74.25 MHz
90 ppm/V
LVPECL
155.52 MHz
45 ppm/V
LVPECL
491.52 MHz
45 ppm/V
LVPECL
622.08 MHz
135 ppm/V
LVPECL
Units
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
–87
–114
–132
–142
–148
–150
n/a
–86
–111
–128
–133
–144
–147
n/a
–75
–65
–90
–100
–116
–124
–135
–146
–147
–109
–121
–134
–146
–147
dBc/Hz
10 MHz
100 MHz
Table 8. Environmental Compliance
The Si550 meets the following qualification test requirements.
Parameter
Mechanical Shock
Conditions/Test Method
MIL-STD-883, Method 2002
MIL-STD-883, Method 2007
MIL-STD-883, Method 203
MIL-STD-883, Method 1014
MIL-STD-883, Method 2036
J-STD-020, MSL 1
Mechanical Vibration
Solderability
Gross & Fine Leak
Resistance to Solder Heat
Moisture Sensitivity Level
Contact Pads
J-STD-020, MSL 1
Table 9. Thermal Characteristics
(Typical values TA = 25 ºC, VDD = 3.3 V)
Parameter
Symbol
Test Condition
Still Air
Min
—
Typ
84.6
38.8
—
Max
Unit
°C/W
°C/W
°C
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Case
Ambient Temperature
—
—
JA
Still Air
—
JC
T
–40
—
85
A
Junction Temperature
T
—
125
°C
J
Rev. 1.1
7
Si550
Table 10. Absolute Maximum Ratings1
Parameter
Maximum Operating Temperature
Supply Voltage, 1.8 V Option
Supply Voltage, 2.5/3.3 V Option
Input Voltage
Symbol
Rating
85
Units
T
ºC
AMAX
V
V
–0.5 to +1.9
–0.5 to +3.8
V
DD
DD
V
V
–0.5 to V + 0.3
V
ºC
I
DD
Storage Temperature
T
–55 to +125
2500
S
ESD Sensitivity (HBM, per JESD22-A114)
ESD
V
2
Soldering Temperature (Pb-free profile)
T
260
ºC
PEAK
2
Soldering Temperature Time @ T
(Pb-free profile)
t
20–40
seconds
PEAK
P
Notes:
1. Stresses beyond those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional
operation or specification compliance is not implied at these conditions. Exposure to maximum rating conditions for
extended periods may affect device reliability.
2. The device is compliant with JEDEC J-STD-020C. Refer to Si5xx Packaging FAQ available for download from
www.silabs.com/VCXO for further information, including soldering profiles.
8
Rev. 1.1
Si550
2. Pin Descriptions
(Top View)
VC
VDD
1
2
3
6
5
4
OE
CLK–
CLK+
GND
Table 11. Si550 Pin Descriptions
Type
Pin
Name
Function
1
V
Analog Input
Control Voltage
C
Output Enable (Polarity = High):
0 = clock output disabled (outputs tri-stated)
1 = clock output enabled
Output Enable (Polarity = Low):
0 = clock output enabled
2
OE*
Input
1 = clock output disabled (outputs tri-stated)
3
4
GND
Ground
Output
Output
Electrical and Case Ground
Oscillator Output
CLK+
CLK–
(N/A for CMOS)
Complementary Output
(N/C for CMOS, make no external connection)
5
6
V
Power
Power Supply Voltage
DD
*Note: OE includes 17 k pullup resistor to VDD. See Section 3. "Ordering Information" on page 10 for details on OE polarity
ordering options.
Rev. 1.1
9
Si550
3. Ordering Information
The Si550 supports a variety of options including frequency, temperature stability, tuning slope, output format, and
V
. Specific device configurations are programmed into the Si550 at time of shipment. Configurations are
DD
specified using the Part Number Configuration chart shown below. Silicon Labs provides a web browser-based part
number configuration utility to simplify this process. Refer to www.silabs.com/VCXOPartNumber to access this tool
and for further ordering instructions. The Si550 VCXO series is available in an industry-standard, RoHS compliant,
lead-free, 6-pad, 5 x 7 mm package. Tape and reel packaging is an ordering option.
X
X
D
G
R
550
XXXMXXX
R = Tape & Reel
Blank = Trays
550 VCXO
Product Family
Operating Temp Range (°C)
–40 to +85 °C
G
Device Revision Letter
Frequency (e.g. 622M080 is 622.080 MHz)
Available frequency range is 10 to 945 MHz, 970 to 1134, and 1213 to
1417 MHz. The position of “M” shifts to denote higher or lower
frequencies. If the frequency of interest requires greater than 6 digit
resolution, a six digit code will be assigned for the specific frequency.
1st Option Code
VDD Output Format Output Enable Polarity
2nd Option Code
Temperature
Stability
± ppm (max)
Tuning Slope
Minimum APR
A
B
C
D
E
F
G
H
J
K
M
N
P
Q
R
S
T
3.3 LVPECL
3.3 LVDS
3.3 CMOS
3.3 CML
2.5 LVPECL
2.5 LVDS
2.5 CMOS
2.5 CML
1.8 CMOS
1.8 CML
3.3 LVPECL
3.3 LVDS
3.3 CMOS
3.3 CML
2.5 LVPECL
2.5 LVDS
2.5 CMOS
2.5 CML
1.8 CMOS
1.8 CML
High
High
High
High
High
High
High
High
High
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Kv
ppm/V (typ)
180
(±ppm) for VDD @
Code
A
B
C
D
E
F
G
H
J
K
M
3.3 V
100
30
2.5 V
75
Note 6
125
30
Note 6
75
300
145
104
220
1.8 V
25
Note 6
75
25
Note 6
50
235
105
70
155
100
100
50
50
20
50
20
20
20
90
180
90
45
135
356
180
135
150
80
25
100
375
185
130
295
12
100
20
356
33
Note 6
Note 6
Notes:
1. For best jitter and phase noise performance, always choose the smallest Kv that meets
the application’s minimum APR requirements. Unlike SAW-based solutions which
require higher higher Kv values to account for their higher temperature dependence,
the Si55x series provides lower Kv options to minimize noise coupling and jitter in real-
world PLL designs. See AN255 and AN266 for more information.
2. APR is the ability of a VCXO to track a signal over the product lifetime. A VCXO with an
APR of ±25 ppm is able to lock to a clock with a ±25 ppm stability over 15 years over all
operating conditions.
U
V
W
Note:
CMOS available to 160 MHz.
3. Nominal Pull range (±) = 0.5 x VDD x tuning slope.
4. Nominal Absolute Pull Range (±APR) = Pull range – stability – lifetime aging
=0.5 x VDD x tuning slope – stability – 10 ppm
5. Minimum APR values noted above include worst case values for all parameters.
6. Combination not available.
Example Part Number: 550AF622M080DGR is a 5 x 7 mm VCXO in a 6 pad package. The nominal frequency is 622.080 MHz, with a 3.3 V supply,
LVPECL output, and Output Enable active high polarity. Temperature stability is specified as ±50 ppm and the tuning slope is 135 ppm/V. The part
is specified for a –40 to +85 C° ambient temperature range operation and is shipped in tape and reel format.
Figure 1. Part Number Convention
10
Rev. 1.1
Si550
4. Package Outline and Suggested Pad Layout
Figure 2 illustrates the package details for the Si550. Table 12 lists the values for the dimensions shown in the
illustration.
Figure 2. Si550 Outline Diagram
Table 12. Package Diagram Dimensions (mm)
Dimension
Min
1.50
1.30
0.50
Nom
1.65
Max
1.80
1.50
0.70
A
b
1.40
c
0.60
D
5.00 BSC
4.40
D1
e
4.30
4.50
2.54 BSC.
7.00 BSC.
6.20
E
E1
H
6.10
0.55
1.17
1.80
6.30
0.75
1.37
2.60
0.65
L
1.27
p
—
R
0.70 REF
0.15
aaa
bbb
ccc
ddd
eee
0.15
0.10
0.10
0.50
Rev. 1.1
11
Si550
5. 6-Pin PCB Land Pattern
Figure 3 illustrates the 6-pin PCB land pattern for the Si550. Table 13 lists the values for the dimensions shown in
the illustration.
Figure 3. Si550 PCB Land Pattern
Table 13. PCB Land Pattern Dimensions (mm)
Dimension
Min
Max
D2
e
5.08 REF
2.54 BSC
4.15 REF
E2
GD
GE
VD
VE
X
0.84
2.00
—
—
8.20 REF
7.30 REF
1.70 TYP
2.15 REF
Y
ZD
ZE
—
—
6.78
6.30
Notes:
1. Dimensioning and tolerancing per the ANSI Y14.5M-1994 specification.
2. Land pattern design based on IPC-7351 guidelines.
3. All dimensions shown are at maximum material condition (MMC).
4. Controlling dimension is in millimeters (mm).
12
Rev. 1.1
Si550
6. Top Marking
6.1. Si550 Top Marking
6.2. Top Marking Explanation
Line
Position
1–10
Description
1
2
3
“SiLabs”+ Part Family Number, 550 (First 3 characters in part number)
Si550: Option1+Option2+Freq(6007)+Temp
1–10
Trace Code
Position 1
Pin 1 orientation mark (dot)
Product Revision (D)
Position 2
Tiny Trace Code (4 alphanumeric characters per assembly release instructions)
Year (least significant year digit), to be assigned by assembly site (ex: 2010 = 0)
Calendar Work Week number (1–53), to be assigned by assembly site
“+” to indicate Pb-Free and RoHS-compliant
Position 3–6
Position 7
Position 8–9
Position 10
Rev. 1.1
13
Si550
DOCUMENT CHANGE LIST
Revision 0.6 to Revision 1.0
Updated Table 4 on page 3.
Updated 2.5 V/3.3 V and 1.8 V CML output level
specifications.
Updated Table 5 on page 4.
Removed the words “Differential Modes:
LVPECL/LVDS/CML” in the footnote referring to AN256.
Added footnotes clarifying max offset frequency test
conditions.
Added CMOS phase jitter specs.
Updated Table 10 on page 8.
Separated 1.8 V, 2.5 V/3.3 V supply voltage
specifications.
Updated and clarified Table 8 on page 7
Added “Moisture Sensitivity Level” and “Contact Pads”
rows.
Updated 6. "Top Marking" on page 13 to reflect
specific marking information (previously, figure was
generic).
Updated 4. "Package Outline and Suggested Pad
Layout" on page 11.
Added cyrstal impedance pin in Figure 2 on page 11 and
Table 12 on page 11.
Reordered spec tables and back matter to conform
to data sheet quality conventions.
Revision 1.0 to Revision 1.1
Added Table 9, “Thermal Characteristics,” on
page 7.
14
Rev. 1.1
Si550
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Rev. 1.1
15
相关型号:
550RC156M250DGR
LVPECL Output Clock Oscillator, 10MHz Min, 1417MHz Max, 156.25MHz Nom, ROHS COMPLIANT PACKAGE-6
SILICON
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