550CA10M000DG [SILICON]
VCXO, Clock, 10MHz Min, 1417MHz Max, 10MHz Nom;型号: | 550CA10M000DG |
厂家: | SILICON |
描述: | VCXO, Clock, 10MHz Min, 1417MHz Max, 10MHz Nom 石英晶振 压控振荡器 |
文件: | 总14页 (文件大小:231K) |
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-rate output ꢀ Internal fixed crystal frequency
Si5602
frequencies from 10 to 945 MHz
and selected frequencies to
1.4 GHz
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
®
ꢀ
ꢀ
3rd generation DSPLL with
ꢀ
ꢀ
superior jitter performance
3x better frequency stability than
SAW-based oscillators
ꢀ
Lead-free/RoHS-compliant
Ordering Information:
Applications
See page 8.
ꢀ
ꢀ
ꢀ
SONET/SDH
xDSL
10 GbE LAN/WAN
ꢀ
Low-jitter clock generation
Optical modules
Clock and data recovery
ꢀ
ꢀ
Pin Assignments:
See page 7.
Description
(Top View)
®
The Si550 VCXO utilizes Silicon Laboratories’ advanced DSPLL circuitry to
provide a low-jitter clock at high frequencies. The Si550 is available with
any-rate output frequency from 10 to 945 MHz and selected frequencies to
1400 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
CLK– CLK+
VDD
Any-rate
10-1400 MHz
DSPLL®
Fixed
Frequency
XO
Clock Synthesis
ADC
Vc
OE
GND
Rev. 0.6 6/07
Copyright © 2007 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
DD
Supply Voltage
V
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
—
2
Output Enable (OE)
V
IH
DD
V
V
0.5
85
IL
Operating Temperature Range
T
–40
°C
A
Notes:
1. Selectable parameter specified by part number. See 3. "Ordering Information" on page 8 for further details.
2. OE pin includes a 17 kΩ 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
—
ppm/V
V
DD
90
135
180
356
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
kΩ
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 8.
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. 0.6
Si550
Table 3. CLK± Output Frequency Characteristics
Parameter
Symbol
Test Condition
LVDS/CML/LVPECL
CMOS
Min
10
Typ
—
Max
Units
1,2,3
f
945
160
O
Nominal Frequency
MHz
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
±25
—
—
—
—
—
±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 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. 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
VPP
2
VO
CML Output Option
mid-level
—
0.70
0.8 x VDD
—
V
– 0.75
—
1.20
VDD
0.4
V
DD
VOD
VOH
VOL
swing (diff)
0.95
—
VPP
3
CMOS Output Option
I
= 32 mA
OH
V
IOL = 32 mA
—
Rise/Fall time (20/80%)
Symmetry (duty cycle)
tR, F
t
LVPECL/LVDS/CML
—
—
350
—
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 Ω to VDD – 2.0 V.
2. Rterm = 100 Ω (differential).
3. CL = 15 pF
Rev. 0.6
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
φJ
ps
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.26
0.26
—
—
OUT
Kv = 45 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.27
0.26
—
—
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. Differential Modes: LVPECL/LVDS/CML. 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
Rev. 0.6
Si550
Table 5. CLK± Output Phase Jitter (Continued)
Parameter
Symbol
Test Condition
Kv = 33 ppm/V
Min
Typ
Max
Units
1,2,3
Phase Jitter (RMS)
for F of 125 to 500 MHz
φJ
ps
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.37
0.33
—
—
OUT
Kv = 45 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.37
0.33
—
—
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. Differential Modes: LVPECL/LVDS/CML. 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.
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.
Rev. 0.6
5
Si550
Table 7. CLK± Output Phase Noise (Typical)
Offset Frequency
74.25 MHz
90 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
–75
–65
–90
–100
–116
–124
–135
–146
–147
–109
–121
–134
–146
–147
dBc/Hz
10 MHz
100 MHz
Table 8. Absolute Maximum Ratings1
Parameter
Maximum Operating Temperature
Supply Voltage
Symbol
Rating
Units
T
85
ºC
Volts
Volts
ºC
AMAX
V
–0.5 to +3.8
DD
Input Voltage
V
–0.5 to V + 0.3
I
DD
Storage Temperature
T
–55 to +125
2500
S
ESD Sensitivity (HBM, per JESD22-A114)
ESD
Volts
ºC
2
Soldering Temperature (Pb-free profile)
T
260
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.
Table 9. Environmental Compliance
The Si550 meets the following qualification test requirements.
Parameter
Conditions/Test Method
MIL-STD-883F, Method 2002.3 B
MIL-STD-883F, Method 2007.3 A
MIL-STD-883F, Method 203.8
MIL-STD-883F, Method 1014.7
MIL-STD-883F, Method 2016
Mechanical Shock
Mechanical Vibration
Solderability
Gross & Fine Leak
Resistance to Solvents
6
Rev. 0.6
Si550
2. Pin Descriptions
(Top View)
VC
VDD
1
2
3
6
5
4
OE
CLK–
CLK+
GND
Table 10. 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
2
OE*
Input
3
4
GND
Ground
Output
Output
Electrical and Case Ground
Oscillator Output
CLK+
CLK–
(N/A for CMOS)
Complementary Output
(N/C for CMOS)
5
6
V
Power
Power Supply Voltage
DD
*Note: OE includes 17 kΩ pullup resistor to VDD. See Section 3. "Ordering Information" on page 8 for details on OE polarity
ordering options.
Rev. 0.6
7
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 supplied 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
8
Rev. 0.6
Si550
4. Si55x Mark Specification
Figure 2 illustrates the mark specification for the Si550. Table 11 lists the line information.
6
4
5
SiLabs 123
1 2 3 4 5 6 7 8 9 0
R T T T T Y W W +
1
2
3
Figure 2. Mark Specification
Table 11. Si55x Top Mark Description
Description
Line
Position
1–10
1
2
“SiLabs”+ Part Family Number, 5xx (First 3 characters in part number)
1–10
Si550: Option1+Option2+Freq(7)+Temp
Si552, Si554, Si550 w/ 8-digit resolution: Option1+Option2+ConfigNum(6)+Temp
3
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: 2007 = 7)
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. 0.6
9
Si550
5. Outline Diagram and Suggested Pad Layout
Figure 3 illustrates the package details for the Si550. Table 12 lists the values for the dimensions shown in the
illustration.
Figure 3. Si550 Outline Diagram
Table 12. Package Diagram Dimensions (mm)
Dimension
Min
1.45
1.2
Nom
1.65
Max
1.85
1.6
A
b
1.4
c
0.60 TYP.
7.00 BSC.
6.2
D
D1
e
6.10
6.30
2.54 BSC.
5.00 BSC.
4.40
E
E1
L
4.30
1.07
4.50
1.47
1.27
S
1.815 BSC.
0.7 REF.
—
R
aaa
bbb
ccc
ddd
—
—
—
—
0.15
0.15
0.10
0.10
—
—
—
10
Rev. 0.6
Si550
6. 6-Pin PCB Land Pattern
Figure 4 illustrates the 6-pin PCB land pattern for the Si550. Table 13 lists the values for the dimensions shown in
the illustration.
Figure 4. 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).
Rev. 0.6
11
Si550
DOCUMENT CHANGE LIST
Revision 0.3 to Revision 0.4
ꢀ Updated Table 1, “Recommended Operating
Conditions,” on page 2.
ꢁ Added maximum supply current specifications.
ꢁ Specified relationship between temperature at startup
and operation temperature.
ꢀ Added Output Enable active polarity as an option in
Figure 1, “Part Number Convention,” on page 8.
Revision 0.4 to Revision 0.5
ꢀ Updated Note 3 in Table 1, “Recommended
Operating Conditions,” on page 2.
ꢀ Updated Figure 1, “Part Number Convention,” on
page 8.
Revision 0.5 to Revision 0.6
ꢀ Updated Table 1, “Recommended Operating
Conditions,” on page 2.
ꢁ Device maintains stable operation over –40 to +85 ºC
operating temperature range.
ꢁ Supply current specifications updated for revision D.
ꢀ Updated Table 4, “CLK± Output Levels and
Symmetry,” on page 3.
ꢁ Updated LVDS differential peak-peak swing
specifications.
ꢀ Updated Table 5, “CLK± Output Phase Jitter,” on
page 4.
ꢀ Updated Table 6, “CLK± Output Period Jitter,” on
page 5.
ꢁ Revised period jitter specifications.
1
ꢀ Updated Table 8, “Absolute Maximum Ratings ,” on
page 6 to reflect the soldering temperature time at
260 ºC is 20–40 sec per JEDEC J-STD-020C.
ꢀ Updated 3. "Ordering Information" on page 8.
ꢁ Changed ordering instructions to revision D.
ꢀ Added 4. "Si55x Mark Specification" on page 9.
12
Rev. 0.6
Si550
NOTES:
Rev. 0.6
13
Si550
CONTACT INFORMATION
Silicon Laboratories Inc.
400 West Cesar Chavez
Austin, TX 78701
Tel: 1+(512) 416-8500
Fax: 1+(512) 416-9669
Toll Free: 1+(877) 444-3032
Email: VCXOinfo@silabs.com
Internet: www.silabs.com
The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice.
Silicon Laboratories assumes no responsibility for errors and omissions, and disclaims responsibility for any consequences resulting from
the use of information included herein. Additionally, Silicon Laboratories assumes no responsibility for the functioning of undescribed features
or parameters. Silicon Laboratories reserves the right to make changes without further notice. Silicon Laboratories makes no warranty, rep-
resentation or guarantee regarding the suitability of its products for any particular purpose, nor does Silicon Laboratories assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation conse-
quential or incidental damages. Silicon Laboratories products are not designed, intended, or authorized for use in applications intended to
support or sustain life, or for any other application in which the failure of the Silicon Laboratories product could create a situation where per-
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plication, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages.
Silicon Laboratories, Silicon Labs, and DSPLL are trademarks of Silicon Laboratories Inc.
Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders.
14
Rev. 0.6
相关型号:
550CA125M000BGR
CMOS Output Clock Oscillator, 125MHz Nom, 5 X 7 MM, ROHS COMPLIANT PACKAGE-6
SILICON
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