550HB1417M000BGR [SILICON]
Oscillator;型号: | 550HB1417M000BGR |
厂家: | SILICON |
描述: | Oscillator |
文件: | 总12页 (文件大小:207K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Si550
PRELIMINARY DATA SHEET
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 MHz to
945 MHz and selected frequencies
to 1.4 GHz
ensures high reliability and low
aging
ꢀ
Available CMOS, LVPECL,
LVDS, & 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 VCXO’s 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 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
Preliminary Rev. 0.3 4/06
Copyright © 2006 by Silicon Laboratories
Si550
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Si550
1. Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter
Symbol
Test Condition
3.3 V option
Min
2.97
2.25
1.71
—
Typ
3.3
2.5
1.8
90
Max
3.63
2.75
1.89
—
Units
1
V
DD
Supply Voltage
2.5 V option
V
1.8 V option
Supply Current
I
Output enabled
TriState mode
DD
mA
—
60
—
2
Output Enable (OE)
V
0.75 x V
—
—
—
IH
DD
V
V
—
0.5
85
IL
Operating Temperature Range
T
–40
—
ºC
A
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 kΩ pullup resistor to VDD. Pulling OE to ground causes outputs to tristate.
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
—
45
90
—
ppm/V
V
DD
135
180
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
3/8 x V
DD
—
CNOM
O
Control Voltage Tuning Range
V
0
V
V
C
DD
Notes:
1. Positive slope; selectable option by part number. See Section 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 ±28% 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
Preliminary Rev. 0.3
Si550
Table 3. CLK± Output Frequency Characteristics
Parameter
Symbol
Test Condition
LVDS/CML/LVPECL
CMOS
Min
10
Typ
—
Max
945
160
Units
1,2,3
f
O
Nominal Frequency
MHz
10
—
1,4
Temperature Stability
∆f/f
T = –40 to +85 ºC
–20
–50
–100
—
—
—
+20
+50
+100
O
A
ppm
1,4
Absolute Pull Range
Aging
APR
±25
—
—
—
±150
±10
ppm
ppm
Frequency drift over
15 year life.
5
Power up Time
tOSC
—
—
10
ms
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 = 3/8 x VDD
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
DD – 1.42
1.1
Typ
—
Max
VDD – 1.25
1.9
Units
V
1
LVPECL Output Option
V
V
O
VOD
VSE
swing (diff)
—
VPP
VPP
V
swing (single-ended)
mid-level
0.5
—
0.93
1.275
0.50
—
2
LVDS Output Option
V
1.125
0.32
—
1.20
0.40
O
swing (diff)
VOD
VO
VPP
V
2
CML Output Option
mid-level
V
– 0.75
DD
VOD
VOH
VOL
swing (diff)
0.70
0.95
—
1.20
VDD
VPP
3
0.8 x VDD
CMOS Output Option
I
= 32 mA
OH
V
—
—
—
—
IOL = 32 mA
0.4
Rise/Fall time (20/80%)
tR, F
t
LVPECL/LVDS/CML
CMOS with CL = 15 pF
—
350
ps
ns
1
—
Preliminary Rev. 0.3
3
Si550
Table 4. CLK± Output Levels and Symmetry (Continued)
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
Symmetry (duty cycle)
SYM
LVPECL:
LVDS:
CMOS:
V
– 1.3 V (diff)
DD
45
—
55
%
1.25 V (diff)
/2
V
DD
Notes:
1. 50 Ω to VDD – 2.0 V.
2. Rterm = 100 Ω (differential).
3. CL = 15 pF
Table 5. CLK± Output Phase Jitter
Parameter
Symbol
Test Condition
Kv = 45 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)
—
—
0.35
0.38
—
—
OUT
Kv = 90 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.43
0.41
—
—
Kv = 135 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.52
0.46
—
—
Kv = 180 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.64
0.52
—
—
1,2,3
Phase Jitter (RMS)
for F of 125 to 500 MHz
φJ
Kv = 45 ppm/V
ps
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.42
0.58
—
—
OUT
Kv = 90 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.48
0.60
—
—
Kv = 135 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.57
0.64
—
—
Kv = 180 ppm/V
12 kHz to 20 MHz (OC-48)
50 kHz to 80 MHz (OC-192)
—
—
0.67
0.68
—
—
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
Preliminary Rev. 0.3
Si550
Table 6. CLK± Output Period Jitter
Parameter
Period Jitter*
Symbol
Test Condition
RMS
Min
—
Typ
2
Max
Units
J
—
—
ps
PER
for F < 160 MHz
OUT
Peak-to-Peak
—
14
*Note: Any output mode, including CMOS, LVPECL, LVDS, CML. N = 1000 cycles.
Table 7. CLK± Output Phase Noise (Typical)
Configuration
f
74.25 MHz
45 ppm/V
CMOS
300 MHz
622.08 MHz
45 ppm/V
LVPECL
Units
C
90 ppm/V
LVPECL
K
V
Output
Offest Frequency (f)
L (f)
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
–94
–117
–128
–135
–138
–143
n/a
–74
–98
–77
–101
–114
–118
–128
–144
–147
–112
–122
–134
–144
–147
dBc/Hz
10 MHz
100 MHz
Preliminary Rev. 0.3
5
Si550
Table 8. Absolute Maximum Ratings
Parameter
Supply Voltage
Symbol
Rating
Units
Volts
Volts
ºC
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
260
S
ESD Sensitivity (HBM, per JESD22-A114)
Soldering Temperature (lead-free profile)
ESD
Volts
ºC
T
PEAK
Soldering Temperature Time @ T
(lead-free profile)
t
10
seconds
PEAK
P
Note: 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.
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
Preliminary Rev. 0.3
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:
2
OE*
Input
0 = clock output disabled (outputs tri-stated)
1 = clock output enabled
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
.
Preliminary Rev. 0.3
7
Si550
3. Ordering Information
The Si550 was designed to support 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.
DD
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 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
B
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.
1st Option Code
2nd Option Code
Code
A
B
C
D
E
F
G
H
J
VDD
3.3
Output Format
LVPECL
LVDS
CMOS
CML
LVPECL
LVDS
CMOS
CML
Temperature
Stability
± ppm (max)
Tuning Slope
Minimum APR
(±ppm)
@ 2.5 V
75
3.3
Kv
ppm/V (typ)
180
3.3
Code
A
B
C
D
@ 3.3 V
100
30
@ 1.8 V
25
3.3
2.5
2.5
2.5
2.5
1.8
1.8
100
100
50
50
20
90
180
90
45
Note 6
125
Note 6
75
150
80
25
30
25
E
F
Note 6
75
Note 6
50
CMOS
CML
50
135
100
K
Notes:
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.
3. Nominal Pull range (±) = 0.5 x VDD x tuning slope.
CMOS available to 160 MHz.
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: 550AF622M080BGR 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 and LVPECL output. 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.
8
Preliminary Rev. 0.3
Si550
4. Outline Diagram and Suggested Pad Layout
Figure 1 illustrates the package details for the Si550. Table 11 lists the values for the dimensions shown in the
illustration.
Figure 1. Si550 Outline Diagram
Table 11. 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
—
—
—
Preliminary Rev. 0.3
9
Si550
5. 6-Pin PCB Land Pattern
Figure 2 illustrates the 6-pin PCB land pattern for the Si550. Table 12 lists the values for the dimensions shown in
the illustration.
Figure 2. Si550 PCB Land Pattern
Table 12. 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).
10
Preliminary Rev. 0.3
Si550
DOCUMENT CHANGE LIST
Revision 0.2 to Revision 0.3
ꢀ Updated 1. "Electrical Specifications" on page 2.
ꢁ Updated ordering and format of Table 1 through Table 9.
ꢁ Updated LVDS and CML in Table 4, “CLK± Output
Levels and Symmetry,” on page 3.
ꢁ Updated RMS jitter values in Table 5, “CLK± Output
Phase Jitter,” on page 4.
ꢁ Added Typical Phase Noise performance data in
Table 5, “CLK± Output Phase Jitter,” on page 4.
ꢀ Updated 3. "Ordering Information" on page 8.
ꢁ Removed ordering option E at VDD = 2.5 V in table for
the 2nd Option Code.
ꢁ Typical APRs replaced with minimum APR values.
ꢁ New 135 ppm/V KV option included.
Preliminary Rev. 0.3
11
Si550
CONTACT INFORMATION
Silicon Laboratories Inc.
4635 Boston Lane
Austin, TX 78735
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-
sonal injury or death may occur. Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized ap-
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.
12
Preliminary Rev. 0.3
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