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SIT3373AI-4B2-25EX725.000000E

Description
HCSL Output Clock Oscillator, 725MHz Nom,
CategoryPassive components    oscillator   
File Size821KB,19 Pages
ManufacturerSiTime
Environmental Compliance
Download Datasheet Parametric View All

SIT3373AI-4B2-25EX725.000000E Overview

HCSL Output Clock Oscillator, 725MHz Nom,

SIT3373AI-4B2-25EX725.000000E Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerSiTime
package instructionSOLCC6,.1,43
Reach Compliance Codeunknow
Other featuresENABLE/DISABLE FUNCTION; COMPLEMENTARY OUTPUT
Maximum control voltage2.25 V
Minimum control voltage0.25 V
maximum descent time0.47 ns
Frequency Adjustment - MechanicalNO
Frequency offset/pull rate400 ppm
frequency stability25%
JESD-609 codee4
linearity1%
Installation featuresSURFACE MOUNT
Number of terminals6
Nominal operating frequency725 MHz
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Oscillator typeHCSL
Output load50 OHM
Encapsulate equivalent codeSOLCC6,.1,43
physical size3.2mm x 2.5mm x 0.9mm
longest rise time0.47 ns
Maximum slew rate102 mA
Maximum supply voltage2.75 V
Minimum supply voltage2.25 V
Nominal supply voltage2.5 V
surface mountYES
maximum symmetry55/45 %
Terminal surfaceNickel/Palladium/Gold (Ni/Pd/Au)

SIT3373AI-4B2-25EX725.000000E Preview

SiT3373
220 MHz to 725 MHz Ultra-low Jitter Differential VCXO
Description
The
SiT3373
is a 220.000001 MHz to 725 MHz
differential MEMS VCXO engineered for low-jitter
applications. Utilizing SiTime’s unique DualMEMS™
temperature
sensing
and
TurboCompensation™
technology, the SiT3373 delivers exceptional dynamic
performance by providing resistance to airflow, thermal
gradients, shock and vibration. This device also
integrates multiple on-chip regulators to filter power
supply noise, eliminating the need for a dedicated
external LDO.
The SiT3373 can be factory programmed for any
combination of frequency, stability, voltage, output
signaling, and pull range. Programmability enables
designers to optimize clock configurations while
eliminating long lead times and customization costs
associated with quartz devices where each frequency is
custom built.
The wide frequency range and programmability makes
this device ideal for telecom, networking, and industrial
applications that require a variety of pullable frequencies
and operate in noisy environments.
Refer to
Manufacturing
Notes
for proper reflow profile,
tape and reel dimension, and other manufacturing
related information.
Features
Any frequency between 220.000001 MHz and 725 MHz
accurate to 6 decimal places
(For frequencies 1 MHz to 220 MHz, refer
to
SiT3372)
Widest pull range options: ±25, ±50, ±80, ±100, ±150,
±200, ±400, ±800, ±1600, ±3200 ppm
0.225 ps RMS phase jitter (typ) over 12 kHz to 20 MHz
bandwidth
Frequency stability as low as
±15
ppm
Wide temperature range support from -40°C to 105°C
Industry-standard packages: 7.0 x 5.0 mm,
5.0 x 3.2 mm, 3.2 x 2.5 mm packages
Applications
Cable Modem Termination System (CMTS), Video,
Broadcasting System, Audio, Industrial Sensors,
Remote Radio Head (RRH)
SATA, SAS, 10/40/100/400 Gbps Ethernet, Fibre Channel,
PCI-Express
Optical Transport Network (OTN)
Block Diagram
3.2 x 2.5 mm Package Pinout
VIN
NC
GND
1
6
VDD
OUT-
OUT+
2
5
3
4
Figure 1. SiT3373 Block Diagram
Figure 2. Pin Assignments (Top view)
(Refer to
Table 6
for Pin Descriptions)
Rev 1.05
June 7, 2020
www.sitime.com
SiT3373
220 MHz to 725 MHz Ultra-low Jitter Differential VCXO
Ordering Information
SiT3373AC -1B2-33NH 220.123456T
Part Family
“SiT3373”
Packaging
“T”, “Y”, “D” or “E”
Refer to table below for packing method
[1]
Leave Blank for Bulk
Revision Letter
“A” is the revision of Silicon
Frequency
220.000001 MHz to 725.000000 MHz
Temperature Range
“C”: Extended Commercial, -20 to 70°C
“ I ” : Industrial, -40 to 85°C
“B”: -40 to 95°C
“E”: Extended Industrial, -40 to 105°C
Pull Range Options
“M”: ±25 ppm
“B”: ±50 ppm
“C”: ±80 ppm
“E”: ±100 ppm
“G”: ±150 ppm
“H”: ±200 ppm
“X”: ±400 ppm
“Y”: ±800 ppm
“Z”: ±1600 ppm
“U”: ±3200 ppm
[2]
Signalling Type
“1”: LVPECL
“2”: LVDS
“4”: HCSL
Package Size
“B”: 3.2 x 2.5 mm
“C”: 5.0 x 3.2 mm with center pad
“E”: 7.0 x 5.0 mm with center pad
Feature Pin
[3]
“N”: No Connect
“E”: Output Enable
Frequency Stability
“H”:
“2”:
“9”:
“3”:
±15 ppm
±25 ppm
±35 ppm
±50 ppm
Voltage Supply
“25”: 2.5V ±10%
“28”: 2.8V ±10%
“30”: 3.0V ±10%
“33”: 3.3V ±10%
Notes:
1. Bulk is available for sampling only.
2.
Contact SiTime
for custom pull range options.
3. “E”: Output Enable function is only available in 7.0 x 5.0 mm and 5.0 x 3.2 mm packages.
Table 1. Ordering Codes for Supported Tape & Reel Packing Method
Device Size
(mm x mm)
7.0 x 5.0
5.0 x 3.2
3.2 x 2.5
8 mm T&R
(3ku)
D
8 mm T&R
(1ku)
E
12 mm T&R
(3ku)
T
T
12 mm T&R
(1ku)
Y
Y
16 mm T&R
(3ku)
T
16 mm T&R
(1ku)
Y
Rev 1.05
Page 2 of 19
www.sitime.com
SiT3373
220 MHz to 725 MHz Ultra-low Jitter Differential VCXO
TABLE OF CONTENTS
Description....................................................................................................................................................................................1
Features .......................................................................................................................................................................................1
Applications ..................................................................................................................................................................................1
Block Diagram ..............................................................................................................................................................................1
3.2 x 2.5 mm Package Pinout .......................................................................................................................................................1
Ordering Information .....................................................................................................................................................................2
Electrical Characteristics ..............................................................................................................................................................4
Waveform Diagrams ...................................................................................................................................................................10
Termination Diagrams ................................................................................................................................................................ 12
LVPECL ...............................................................................................................................................................................12
LVDS ...................................................................................................................................................................................14
HCSL ...................................................................................................................................................................................15
Dimensions and Patterns ― 3.2 x 2.5 mm .................................................................................................................................16
Dimensions and Patterns ― 5.0 x 3.2 mm .................................................................................................................................16
Dimensions and Patterns ― 7.0 x 5.0 mm .................................................................................................................................17
Additional Information .................................................................................................................................................................18
Revision History ..........................................................................................................................................................................19
Rev 1.05
Page 3 of 19
www.sitime.com
SiT3373
220 MHz to 725 MHz Ultra-low Jitter Differential VCXO
Electrical Characteristics
Table 2. Electrical Characteristics – Common to LVPECL, LVDS and HCSL
All Min and Max limits in the Electrical Characteristics tables are specified over temperature and rated operating voltage with standard
output termination shown in the termination diagrams. Typical values are at 25°C and nominal supply voltage.
Parameter
Output Frequency Range
Frequency Stability
Symbol
f
F_stab
Min.
220.000001
-15
-25
-35
-50
Operating Temperature Range
T_use
-20
-40
-40
-40
Supply Voltage
Vdd
2.97
2.70
2.52
2.25
Pull Range
Upper Control Voltage
Lower Control Voltage
Control Voltage Input Impedance
Control Voltage Input Bandwidth
Pull Range Linearity
Frequency Change Polarity
Input Voltage High
Input Voltage Low
Input Pull-up Impedance
Duty Cycle
Start-up Time
OE Enable/Disable Time
PR
VC_U
VC_L
VC_z
V_c
Lin
VIH
VIL
Z_in
DC
T_start
T_oe
70%
45
Typ.
3.30
3.00
2.80
2.50
Max.
725
+15
+25
+35
+50
+70
+85
+95
+105
Supply Voltage
3.63
3.30
3.08
2.75
V
V
V
V
ppm
Vdd
Vdd
kHz
%
30%
-
55
3.0
3.8
Vdd
Vdd
%
ms
µs
Measured from the time Vdd reaches its rated minimum value.
f = 322.265625 MHz. Measured from the time OE pin reaches
rated VIH and VIL to the time clock pins reach 90% of swing
and high-Z. See
Figure 9
and
Figure 10
Pin 2, OE
Pin 2, OE
Pin 2, OE logic high or logic low
Contact SiTime
for other input bandwidth options
See the APR (Absolute Pull Range)
Table 11.
Contact SiTime
for custom pull range options
Voltage at which maximum frequency deviation is guaranteed
Voltage at which minimum frequency deviation is guaranteed
Unit
MHz
ppm
ppm
ppm
ppm
°C
°C
°C
°C
Extended Industrial
Extended Commercial
Industrial
Condition
Accurate to 6 decimal places
Inclusive of initial tolerance, operating temperature, rated
power supply voltage, load variations, and first year aging
at 25°C, with VIN voltage at Vdd/2.
±15
ppm is only guaranteed for pull range up to
±100
ppm.
Frequency Range
Frequency Stability
Temperature Range
Voltage Control Characteristics
±25, ±50, ±80, ±100, ±150, ±200,
±400, ±800, ±1600, ±3200
90%
10
10
Positive Slope
100
10%
1.0
Input Characteristics
Output Characteristics
Startup and OE Timing
Rev 1.05
Page 4 of 19
www.sitime.com
SiT3373
220 MHz to 725 MHz Ultra-low Jitter Differential VCXO
Table 3. Electrical Characteristics – LVPECL Specific
Parameter
Current Consumption
OE Disable Supply Current
Output Disable Leakage Current
Maximum Output Current
Output High Voltage
Output Low Voltage
Output Differential Voltage Swing
Rise/Fall Time
RMS Period Jitter
[4]
RMS Phase Jitter (random)
Symbol
Idd
I_OE
I_leak
I_driver
VOH
VOL
V_Swing
Tr, Tf
T_jitt
T_phj
0.220
0.270
ps
Min.
Vdd-1.15
Vdd-1.9
1.2
Typ.
0.15
1.6
225
1.0
Max.
97
63
32
Vdd-0.7
Vdd-1.5
2.0
290
1.6
Unit
mA
mA
A
mA
V
V
V
ps
ps
Condition
Excluding Load Termination Current, Vdd = 3.3V or 2.5V
OE = Low
OE = Low
Maximum average current drawn from OUT+ or OUT-
See
Figure 5
See
Figure 5
See
Figure 6
20% to 80%, see
Figure 6
f = 322.265625 MHz, Vdd = 3.3V or 2.5V
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz,
all Vdd levels, includes spurs, pull range =
±100
ppm.
Temperature ranges -20 to 70 °C and -40 to 85 °C
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz,
all Vdd levels, includes spurs, pull range =
±100
ppm.
Temperature ranges -40 to 95 °C and -40 to 105 °C
f = 156.25 or 322.265625 MHz, IEEE802.3-2005 10 GbE jitter
mask integration bandwidth = 1.875 MHz to 20 MHz,
all Vdd levels
f = 322.265625 MHz, Vdd = 3.3V or 2.5V
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz,
all Vdd levels, includes spurs, pull range =
±100
ppm.
Temperature ranges -20 to 70 °C and -40 to 85 °C
f = 322.265625 MHz, Integration bandwidth = 12 kHz to 20 MHz,
all Vdd levels, includes spurs, pull range =
±100
ppm.
Temperature ranges -40 to 95 °C and -40 to 105 °C
f = 322.265625 MHz, IEEE802.3-2005 10 GbE jitter mask
integration bandwidth = 1.875 MHz to 20 MHz, all Vdd levels
Current Consumption
Output Characteristics
Jitter – 7.0 x 5.0 mm Package
0.220
0.300
ps
0.1
ps
Jitter – 5.0 x 3.2 mm and 3.2 x 2.5 mm Packages
RMS Period Jitter
[4]
T_jitt
T_phj
1.0
0.225
1.6
0.282
ps
ps
RMS Phase Jitter (random)
Notes:
4. Measured according to JESD65B.
0.225
0.315
ps
0.1
ps
Rev 1.05
Page 5 of 19
www.sitime.com

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