S i 5 3 0 / 5 31
REVISION D
C RY STA L O S C I L L ATO R ( X O ) ( 1 0 M H Z TO 1 . 4 G H Z )
Features
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
Pb-free/RoHS-compliant
Si5602
Available with any-rate output
frequencies from 10 MHz to 945 MHz
and select frequencies to 1.4 GHz
3rd generation DSPLL® with superior
jitter performance
3x better frequency stability than
SAW-based oscillators
Ordering Information:
Applications
See page 8.
SONET/SDH
Networking
SD/HD video
Test and measurement
Clock and data recovery
FPGA/ASIC clock generation
Pin Assignments:
See page 7.
Description
The Si530/531 XO utilizes Skyworks Solutions’ advanced DSPLL® circuitry
to provide a low jitter clock at high frequencies. The Si530/531 is available
with any-rate output frequency from 10 to 945 MHz and select frequencies to
1400 MHz. Unlike a traditional XO, where a different crystal is required for
each output frequency, the Si530/531 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 Si530/531 IC based XO is factory configurable
for a wide variety of user specifications including frequency, supply voltage,
output format, and temperature stability. Specific configurations are factory
programmed at time of shipment, thereby eliminating long lead times
associated with custom oscillators.
Functional Block Diagram
V DD
CLK– CLK+
(Top View)
NC
1
6
VDD
OE
2
5
CLK–
GND
3
4
CLK+
Si530 (LVDS/LVPECL/CML)
OE
1
6
VDD
NC
2
5
NC
GND
3
4
CLK
Si530 (CMOS)
Fixed
Frequency
XO
Any-rate
10–1400 MHz
DSPLL®
Clock
Synthesis
OE
1
6
VDD
NC
2
5
CLK–
GND
3
4
CLK+
Si531 (LVDS/LVPECL/CML)
OE
GND
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
Rev. 1.5 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 3, 2022
Si530/531
TA B L E O F C O N T E N T S
1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2. Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4. Outline Diagram and Suggested Pad Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5. Si530/Si531 Mark Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6. 6-Pin PCB Land Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
Rev. 1.5 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 3, 2022
Si530/531
1. Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter
Supply Voltage1
Supply Current
Symbol
Test Condition
Min
Typ
Max
Unit
VDD
3.3 V option
2.97
3.3
3.63
V
2.5 V option
2.25
2.5
2.75
V
1.8 V option
1.71
1.8
1.89
V
Output enabled
LVPECL
CML
LVDS
CMOS
—
—
—
—
111
99
90
81
121
108
98
88
Tristate mode
—
60
75
mA
VIH
0.75 x VDD
—
—
V
VIL
—
—
0.5
V
–40
—
85
ºC
IDD
Output Enable (OE)2
Operating Temperature Range
TA
mA
Notes:
1. Selectable parameter specified by part number. See Section 3. "Ordering Information" on page 8 for further details.
2. OE pin includes a 17 k pullup resistor to VDD.
Table 2. CLK± Output Frequency Characteristics
Parameter
Nominal Frequency1,2
Initial Accuracy
Symbol
Test Condition
Min
Typ
Max
Unit
fO
LVPECL/LVDS/CML
10
—
945
MHz
CMOS
10
—
160
MHz
Measured at +25 °C at time of
shipping
—
±1.5
—
ppm
–7
–20
–50
—
—
—
+7
+20
+50
ppm
Frequency drift over first year
—
—
±3
ppm
Frequency drift over 20 year
life
—
—
±10
ppm
fi
Temperature Stability1,3
Aging
fa
Notes:
1. See Section 3. "Ordering Information" on page 8 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. Selectable parameter specified by part number.
4. Time from powerup or tristate mode to fO.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
Rev. 1.5 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 3, 2022
3
Si530/531
Table 2. CLK± Output Frequency Characteristics (Continued)
Parameter
Symbol
Total Stability
Powerup Time4
Test Condition
Min
Typ
Max
Unit
Temp stability = ±7 ppm
—
—
±20
ppm
Temp stability = ±20 ppm
—
—
±31.5
ppm
Temp stability = ±50 ppm
—
—
±61.5
ppm
—
—
10
ms
tOSC
Notes:
1. See Section 3. "Ordering Information" on page 8 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. Selectable parameter specified by part number.
4. Time from powerup or tristate mode to fO.
Table 3. CLK± Output Levels and Symmetry
Parameter
LVPECL Output Option
Symbol
Test Condition
Min
Typ
Max
Unit
VO
mid-level
VDD – 1.42
—
VDD – 1.25
V
VOD
swing (diff)
1.1
—
1.9
VPP
VSE
swing (single-ended)
0.55
—
0.95
VPP
VO
mid-level
1.125
1.20
1.275
V
VOD
swing (diff)
0.5
0.7
0.9
VPP
2.5/3.3 V option mid-level
—
VDD – 1.30
—
V
1.8 V option mid-level
—
VDD – 0.36
—
V
2.5/3.3 V option swing (diff)
1.10
1.50
1.90
VPP
1.8 V option swing (diff)
0.35
0.425
0.50
VPP
VOH
IOH = 32 mA
0.8 x VDD
—
VDD
V
VOL
IOL = 32 mA
—
—
0.4
V
tR, tF
LVPECL/LVDS/CML
—
—
350
ps
CMOS with CL = 15 pF
—
1
—
ns
45
—
55
%
1
LVDS Output Option2
CML Output Option2
VO
VOD
CMOS Output Option
3
Rise/Fall time (20/80%)
Symmetry (duty cycle)
SYM
LVPECL:
(diff)
LVDS:
CMOS:
VDD – 1.3 V
1.25 V (diff)
VDD/2
Notes:
1. 50 to VDD – 2.0 V.
2. Rterm = 100 (differential).
3. CL = 15 pF
4
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
Rev. 1.5 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 3, 2022
Si530/531
Table 4. CLK± Output Phase Jitter
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Phase Jitter (RMS)1
for FOUT > 500 MHz
J
12 kHz to 20 MHz (OC-48)
—
0.25
0.40
ps
50 kHz to 80 MHz (OC-192)
—
0.26
0.37
ps
Phase Jitter (RMS)1
for FOUT of 125 to 500 MHz
J
12 kHz to 20 MHz (OC-48)
—
0.36
0.50
ps
—
0.34
0.42
ps
Phase Jitter (RMS)
for FOUT of 10 to 160 MHz
CMOS Output Only
J
12 kHz to 20 MHz (OC-48)2
—
0.62
—
ps
50 kHz to 20 MHz2
—
0.61
—
ps
50 kHz to 80 MHz (OC-192)
2
Notes:
1. Refer to AN256 for further information.
2. Max offset frequencies: 80 MHz for FOUT > 250 MHz, 20 MHz for 50 MHz < FOUT
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