Si550

Si 5 50
REVISION D
VO L TAG E - C ONTR OLLED C RYSTAL O S C I L L A T O R (VCXO)
10 MH Z TO 1.4 G H Z
Features

Available with any frequency from 
10 to 945 MHz and select
frequencies to 1.4 GHz

 3rd generation DSPLL® with
superior jitter performance (0.5 ps)
 3x better temperature stability than 

SAW-based oscillators
 Excellent PSRR performance
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
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
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.
(Top View)
VC
1
6
VDD
OE
2
5
CLK–
GND
3
4
CLK+
Functional Block Diagram
V DD
Any-Frequency
10 MHz–1.4 GHz
DSPLL ®
Clock Synthesis
Fixed
Frequency
XO
Vc
CLK–
ADC
OE
Rev. 1.1 4/13
CLK+
GND
Copyright © 2013 by Silicon Laboratories
Si550
Si5 50
1. Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter
Supply Voltage1
Symbol
Test Condition
Min
Typ
Max
Units
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
—
—
—
—
120
108
99
90
130
117
108
98
tristate mode
—
60
75
mA
VIH
0.75 x VDD
—
—
V
VIL
—
—
0.5
V
–40
—
85
°C
Supply Current
Output Enable
IDD
(OE)2
Operating Temperature Range
TA
mA
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
Control Voltage Tuning Slope
1,2,3
Control Voltage Linearity4
Symbol
Test Condition
Min
Typ
Max
Units
KV
10 to 90% of VDD
—
—
—
—
—
—
33
45
90
135
180
356
—
—
—
—
—
—
ppm/V
BSL
–5
±1
+5
%
Incremental
–10
±5
+10
%
LVC
Modulation Bandwidth
BW
9.3
10.0
10.7
kHz
VC Input Impedance
ZVC
500
—
—
k
—
VDD/2
—
V
VDD
V
Nominal Control Voltage
Control Voltage Tuning Range
VCNOM
@ fO
VC
0
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
Min
Typ
Max
Units
fO
LVDS/CML/LVPECL
10
—
945
MHz
CMOS
10
—
160
MHz
TA = –40 to +85 ºC
–20
–50
–100
—
—
—
+20
+50
+100
ppm
±12
—
±375
ppm
Frequency drift over first year.
—
—
±3
Frequency drift over 15 year life.
—
—
±10
—
—
10
Nominal Frequency1,2,3
Temperature
Stability1,4
Absolute Pull Range1,4
APR
Aging
Power up Time5
tOSC
ppm
ms
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
Min
Typ
Max
Units
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
%
LVPECL Output Option1
LVDS Output Option
2
VO
CML Output Option2
VOD
CMOS Output Option
3
Rise/Fall time (20/80%)
Symmetry (duty cycle)
SYM
LVPECL:
LVDS:
CMOS:
VDD – 1.3 V (diff)
1.25 V (diff)
VDD/2
Notes:
1. 50  to VDD – 2.0 V.
2. Rterm = 100  (differential).
3. CL = 15 pF
Rev. 1.1
3
Si5 50
Table 5. CLK± Output Phase Jitter
Parameter
1,2,3
Phase Jitter (RMS)
for FOUT > 500 MHz
Symbol
Test Condition
Min
Typ
Max
Units
J
Kv = 33 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.26
0.26
—
—
ps
Kv = 45 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.27
0.26
—
—
ps
Kv = 90 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.32
0.26
—
—
ps
Kv = 135 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.40
0.27
—
—
ps
Kv = 180 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.49
0.28
—
—
ps
Kv = 356 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.87
0.33
—
—
ps
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
Phase Jitter (RMS)1,2,3,4,5
for FOUT of 125 to 500 MHz
Symbol
Test Condition
Min
Typ
Max
Units
J
Kv = 33 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.37
0.33
—
—
ps
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
Kv = 90 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.43
0.34
—
—
ps
Kv = 135 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.50
0.34
—
—
ps
Kv = 180 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.59
0.35
—
—
ps
Kv = 356 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
1.00
0.39
—
—
ps
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
Si5 50
Table 5. CLK± Output Phase Jitter (Continued)
Parameter
Phase Jitter (RMS)1,2,5
for FOUT 10 to 160 MHz
CMOS Output Only
Symbol
Test Condition
Min
Typ
Max
Units
J
Kv = 33 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
0.63
0.62
—
—
ps
Kv = 45 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
0.63
0.62
—
—
ps
Kv = 90 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
0.67
0.66
—
—
ps
Kv = 135 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
0.74
0.72
—
—
ps
Kv = 180 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
0.83
0.8
—
—
ps
Kv = 356 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 20 MHz
—
—
1.26
1.2
—
—
ps
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
Min
Typ
Max
Units
JPER
RMS
—
2
—
ps
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
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
10 MHz
100 MHz
74.25 MHz
155.52 MHz
491.52 MHz
622.08 MHz
90 ppm/V
45 ppm/V
45 ppm/V
135 ppm/V
LVPECL
LVPECL
LVPECL
LVPECL
–87
–114
–132
–142
–148
–150
n/a
–86
–111
–128
–133
–144
–147
n/a
–75
–100
–116
–124
–135
–146
–147
–65
–90
–109
–121
–134
–146
–147
Units
dBc/Hz
Table 8. Environmental Compliance
The Si550 meets the following qualification test requirements.
Parameter
Conditions/Test Method
Mechanical Shock
MIL-STD-883, Method 2002
Mechanical Vibration
MIL-STD-883, Method 2007
Solderability
MIL-STD-883, Method 203
Gross & Fine Leak
MIL-STD-883, Method 1014
Resistance to Solder Heat
MIL-STD-883, Method 2036
Moisture Sensitivity Level
J-STD-020, MSL 1
Contact Pads
J-STD-020, MSL 1
Table 9. Thermal Characteristics
(Typical values TA = 25 ºC, VDD = 3.3 V)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Thermal Resistance Junction to Ambient
JA
Still Air
—
84.6
—
°C/W
Thermal Resistance Junction to Case
JC
Still Air
—
38.8
—
°C/W
Ambient Temperature
TA
–40
—
85
°C
Junction Temperature
TJ
—
—
125
°C
Rev. 1.1
7
Si5 50
Table 10. Absolute Maximum Ratings1
Parameter
Symbol
Rating
Units
TAMAX
85
ºC
Supply Voltage, 1.8 V Option
VDD
–0.5 to +1.9
V
Supply Voltage, 2.5/3.3 V Option
VDD
–0.5 to +3.8
V
Input Voltage
VI
–0.5 to VDD + 0.3
V
Storage Temperature
TS
–55 to +125
ºC
ESD
2500
V
TPEAK
260
ºC
tP
20–40
seconds
Maximum Operating Temperature
ESD Sensitivity (HBM, per JESD22-A114)
Soldering Temperature (Pb-free profile)
2
Soldering Temperature Time @ TPEAK (Pb-free profile)2
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
1
6
VDD
OE
2
5
CLK–
GND
3
4
CLK+
Table 11. Si550 Pin Descriptions
Pin
Name
Type
1
VC
Analog Input
Function
Control Voltage
Output Enable (Polarity = High):
0 = clock output disabled (outputs tri-stated)
1 = clock output enabled
Output Enable (Polarity = Low):
0 = clock output enabled
1 = clock output disabled (outputs tri-stated)
2
OE*
Input
3
GND
Ground
Electrical and Case Ground
4
CLK+
Output
Oscillator Output
5
CLK–
(N/A for CMOS)
Output
Complementary Output
(N/C for CMOS, make no external connection)
6
VDD
Power
Power Supply Voltage
*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
Si5 50
3. Ordering Information
The Si550 supports a variety of options including frequency, temperature stability, tuning slope, output format, and
VDD. Specific device configurations are programmed into the Si550 at time of shipment. Configurations are
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.
550
X
X
XXXMXXX
D
G
R
R = Tape & Reel
Blank = Trays
550 VCXO
Product Family
Operating Temp Range (°C)
G
–40 to +85 °C
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
A
B
C
D
E
F
G
H
J
K
M
N
P
Q
R
S
T
U
V
W
VDD
3.3
3.3
3.3
3.3
2.5
2.5
2.5
2.5
1.8
1.8
3.3
3.3
3.3
3.3
2.5
2.5
2.5
2.5
1.8
1.8
2nd Option Code
Output Format Output Enable Polarity
LVPECL
High
LVDS
High
CMOS
High
CML
High
LVPECL
High
LVDS
High
CMOS
High
CML
High
CMOS
High
CML
High
LVPECL
Low
LVDS
Low
CMOS
Low
CML
Low
LVPECL
Low
LVDS
Low
CMOS
Low
CML
Low
CMOS
Low
CML
Low
Note:
CMOS available to 160 MHz.
Temperature
Stability
± ppm (max)
100
100
50
50
20
50
20
20
20
100
20
Tuning Slope
Kv
ppm/V (typ)
180
90
180
90
45
135
356
180
135
356
33
Minimum APR
(±ppm) for VDD @
2.5 V
1.8 V
75
25
Note 6
Note 6
125
75
30
25
Note 6
Note 6
75
50
300
235
145
105
104
70
220
155
Note 6
Note 6
3.3 V
Code
A
100
B
30
C
150
D
80
E
25
F
100
G
375
H
185
J
130
K
295
M
12
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 realworld 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.
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
A
b
c
D
D1
e
E
E1
H
L
p
R
aaa
bbb
ccc
ddd
eee
Min
1.50
1.30
0.50
4.30
6.10
0.55
1.17
1.80
Nom
1.65
1.40
0.60
5.00 BSC
4.40
2.54 BSC.
7.00 BSC.
6.20
0.65
1.27
—
0.70 REF
0.15
0.15
0.10
0.10
0.50
Rev. 1.1
Max
1.80
1.50
0.70
4.50
6.30
0.75
1.37
2.60
11
Si5 50
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
5.08 REF
e
2.54 BSC
E2
4.15 REF
GD
0.84
—
GE
2.00
—
VD
8.20 REF
VE
7.30 REF
X
1.70 TYP
Y
2.15 REF
ZD
—
6.78
ZE
—
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
1–10
“SiLabs”+ Part Family Number, 550 (First 3 characters in part number)
2
1–10
Si550: Option1+Option2+Freq(6007)+Temp
3
Description
Trace Code
Position 1
Pin 1 orientation mark (dot)
Position 2
Product Revision (D)
Position 3–6
Tiny Trace Code (4 alphanumeric characters per assembly release instructions)
Position 7
Year (least significant year digit), to be assigned by assembly site (ex: 2010 = 0)
Position 8–9
Calendar Work Week number (1–53), to be assigned by assembly site
Position 10
“+” to indicate Pb-Free and RoHS-compliant
Rev. 1.1
13
Si5 50
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

14
Added Table 9, “Thermal Characteristics,” on
page 7.
Rev. 1.1
ClockBuilder Pro
One-click access to Timing tools,
documentation, software, source
code libraries & more. Available for
Windows and iOS (CBGo only).
www.silabs.com/CBPro
Timing Portfolio
www.silabs.com/timing
SW/HW
www.silabs.com/CBPro
Quality
www.silabs.com/quality
Support and Community
community.silabs.com
Disclaimer
Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using
or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and
"Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories reserves the right to
make changes without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the
included information. Silicon Laboratories shall have no liability for the consequences of use of the information supplied herein. This document does not imply or express copyright licenses
granted hereunder to design or fabricate any integrated circuits. The products are not designed or authorized to be used within any Life Support System without the specific written consent
of Silicon Laboratories. A "Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected to result in significant
personal injury or death. Silicon Laboratories products are not designed or authorized for military applications. Silicon Laboratories products shall under no circumstances be used in
weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons.
Trademark Information
Silicon Laboratories Inc.® , Silicon Laboratories®, Silicon Labs®, SiLabs® and the Silicon Labs logo®, Bluegiga®, Bluegiga Logo®, Clockbuilder®, CMEMS®, DSPLL®, EFM®, EFM32®,
EFR, Ember®, Energy Micro, Energy Micro logo and combinations thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZRadio®, EZRadioPRO®, Gecko®,
ISOmodem®, Precision32®, ProSLIC®, Simplicity Studio®, SiPHY®, Telegesis, the Telegesis Logo®, USBXpress® and others are trademarks or registered trademarks of Silicon Laboratories Inc. ARM, CORTEX, Cortex-M3 and THUMB are trademarks or registered trademarks of ARM Holdings. Keil is a registered trademark of ARM Limited. All other products or brand
names mentioned herein are trademarks of their respective holders.
Silicon Laboratories Inc.
400 West Cesar Chavez
Austin, TX 78701
USA
http://www.silabs.com