SMD DIFFERENTIAL LOW POWER SPREAD SPECTRUM OSCILLATORS

PETERMANN-TECHNIK GmbH
Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech
Tel: +49/8191/305395 ∙ Fax: +49/8191/305397
[email protected] ∙ www.petermann-technik.com
LOW POWER SPREAD SPECTRUM OSCILLATOR
SERIES „LPSSO“ WITH SPREAD-OFF FUNCTION
1.0—110.0 MHz
FEATURES
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APPLICATIONS
100% pin-to-pin drop-in replacement to quartz and MEMS based XO
Low Power Spread Spectrum Oscillator for Low Cost
Spread-off function on Pin1 up to 50 MHz
Excellent long time reliability - outperforms quartz-based XO
LVCMOS/LVTTL compatible output
Standby current as low as 0.4 µA
Fast resume time of 3 ms (typ)
<30 ps cycle-to-cycle jitter
Spread options (contact Petermann-Technik for other spread options)
• Center spread: ±0.50%, ±0.25% (standard)
• Down spread: -1%, -0.5% (standard)
Outstanding mechanical robustness for portable applications
Express samples within 1 day ex works
Pb-free, RoHS and REACH compliant / MSL1@260°C
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Printers
Flat panel drivers
PCI
MCU
USB 3.0
PCI or PCI Express
Low Power MCU
Industrial
Telecom
Commercial
Medical
GENERAL DATA
PARAMETER AND CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
CONDITION
f
1
–
110
MHz
F_tol
-50
–
+50
PPM
Inclusive of: Initial stability, operating temperature, rated
power, supply voltage change, load change, shock & vibration
-100
–
+100
PPM
Spread Off
Ag
-1
–
1
PPM
1st year at 25°C
T_use
-20
–
+70
°C
Extended Commercial
-40
–
+85
°C
Industrial
T_stor
-55
–
+125
°C
Storage
VDD
1.71
1.8
1.89
V
2.25
2.5
2.75
V
2.52
2.8
3.08
V
2.97
3.3
3.63
V
–
3.7
4.1
mA
No load condition, f = 20 MHz, VDD= 2.5V, 2.8V, or3.3V
–
3.2
3.5
mA
No load condition, f = 20 MHz, VDD = 1.8V
–
2.4
4.3
µA
ST = GND, VDD = 3.3V, output is pulled down
–
1.2
2.2
µA
ST = GND, VDD= 2.5V or 2.8V, output is pulled down
–
0.4
0.8
µA
ST = GND, VDD = 1.8V, output is pulled down
45
–
55
%
All VDDs. f ≤70 MHz
40
–
60
%
All VDDs. f >70 MHz
–
1
2
ns
20% - 80% VDD = 2.5V, 2.8V or 3.3V, 15 pf load
–
1.3
2.5
ns
20% - 80% VDD =1.8V, 15 pf load
FREQUENCY RANGE
Output Frequency Range
FREQUENCY STABILITY AND AGING
Frequency Tolerance
Aging
OPERATING TEMPERATURE RANGE
Operating Temperature Range
Storage Temperature Range
SUPPLY VOLTAGE AND CURRENT CONSUMPTION
Supply Voltage
Current Consumption
Standby Current
IDD
I_std
LVCMOS OUTPUT CHARACTERISTICS
Duty Cycle
Rise/Fall Time
DC
Tr, Tf
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PAGE 1 OF 8 I SPEC 01 I REV.00 I OKTOBER 2014
PETERMANN-TECHNIK GmbH
Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech
Tel: +49/8191/305395 ∙ Fax: +49/8191/305397
[email protected] ∙ www.petermann-technik.com
GENERAL DATA (continued)
SYMBOL
MIN.
TYP.
MAX.
UNIT
Output High Voltage
VOH
90%
–
–
VDD
IOH = -4 mA (VDD = 3.3V)
IOH = -3 mA (VDD = 2.8V and VDD= 2.5V)
IOH = -2 mA (VDD= 1.8V)
Output Low Voltage
VOL
–
–
10%
VDD
IOL = -4 mA (VDD = 3.3V)
IOL = -3 mA (VDD= 2.8V and VDD = 2.5V)
IOL = -2 mA (VDD = 1.8V)
Ld
–
–
15
pF
Input High Voltage
VIH
70%
–
–
VDD
Pin 1, OE or ST or SD
Input Low Voltage
VIL
–
–
30%
VDD
Pin 1, OE or ST or SD
Startup Time
T_start
–
–
10
ms
Measured from the time VDD reaches its rated minimum value
Resume Time
T_resume
–
3.0
3.8
ms
Measured from the time ST pin crosses 50% threshold
T_cyc
–
–
26
ps
f = 50 MHz, Spread = ON
–
–
26
ps
f = 50 MHz, Spread = OFF
PARAMETER AND CONDITIONS
CONDITION
LVCMOS OUTPUT CHARACTERISTICS
Output Load
At maximum frequency and supply voltage. Contact
Petermann-Technik for higher output load option.
INPUT CHARACTERISTICS
STARTUP AND RESUME TIMING
JITTER
Cycle-to-Cycle Jitter
EXCELLENT RELIABILITY DATA
MTBF
500 million hours
Shock Resistance
10.000 g
Vibration Resistance
70 g
SPREAD SPECTRUM MODES[1]
CENTER SPREAD
CODE
PERCENTAGE
DOWN SPREAD
A
B
C
D
±0.25%
±0.50%[2]
-0.5%
-1.0%[3]
Note: 1. In both center spread and down spread modes, triangle modulation is employed with a frequency of
~32 kHz.
2.±0.5% and -1.0% are available ONLY for <75 MHz in extended commercial temperature range.
TOP VIEW
PIN DESCRIPTION
PIN
SYMBOL
FUNCTIONALITY
Standby (ST)
1
ST/OE/SD
H or Open[4]: specified frequency output.
L: output is low (weak pull down). Oscillator stops.
Output Enable
(OE)
H or Open : specified frequency output.
L: output is high impedance.
Spread Disable
(SD)
H or Open: Spread=ON
L: Spread=OFF
ST/OE/SD 1
4 VDD
GND 2
3 OUT
[4]
2
GND
Ground
Connect to ground
3
OUT
Output
Clock output
4
VDD
Power Supply
(DOWN SPREAD ONLY)
Note: 3. In 1.8 V mode, a resistor of <10 kΩ between OE pin and VDD is recommended.
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PAGE 2 OF 8 I SPEC 01 I REV.00 I OKTOBER 2014
PETERMANN-TECHNIK GmbH
Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech
Tel: +49/8191/305395 ∙ Fax: +49/8191/305397
[email protected] ∙ www.petermann-technik.com
TIMING DIAGRAMS
FIGURE 1. STARTUP TIMING (OE/ST MODE)
90%VDD, 2.5/2.8/3.3V parts
95%VDD, 1.8V parts
VDD
FIGURE 2. STANDBY RESUME TIMING (ST MODE ONLY)
50%VDD
Pin 4 Voltage
VDD
ST Voltage
T_resume
T_start
CLK Output
CLK Output
T_resume: Time to resume from ST
(ST Mode only)
T_start: Time to start from power-off
(ST/OE Mode)
PROGRAMMABLE DRIVE STRENGTH
The LPSSO includes a programmable drive strength feature named
Figure 3 shows the harmonic power reduction as the rise/fall times
SoftLevel to provide a simple, flexible tool to optimize the clock rise/
are increased (slowed down). The rise/fall times are expressed as a
fall time for specific applications. Benefits from the programmable
ratio of the clock period. For the ratio of 0.05, the signal is very close
drive strength feature are:
to a square wave. For the ratio of 0.45, the rise/fall times are very
+ Improves system radiated electromagnetic interference (EMI) by
slowing down the clock rise/fall time
close to near-triangular waveform. These results, for example, show
that the 11th clock harmonic can be reduced by 35 dB if the rise/fall
edge is increased from 5% of the period to 45% of the period.
+ Improves the downstream clock receiver’s (RX) jitter by decreasing (speeding up) the clock rise/fall time.
+ Ability to drive large capacitive loads while maintaining full swing
with sharp edge rates.
HIGH OUTPUT LOAD CAPABILITY
The rise/fall time of the input clock varies as a function of the actual
capacitive load the clock drives. At any given drive strength, the rise/
fall time becomes slower as the output load increases. As an examp-
For more detailed information about rise/fall time control and drive
strength selection, see the Petermann-Technik Applications Note
section: http://www.petermann-technik.com
le, for a 3.3V LPSSO device with default drive strength setting, the
typical rise/fall time is 1ns for 15 pF output load. The typical rise/fall
time slows down to 2.6ns when the output load increases to 45 pF.
One can choose to speed up the rise/fall time to 1.68ns by then in-
EMI REDUCTION BY SLOWING RISE/FALL TIME (SoftLevel FUNCTION)
creasing the drive strength setting on the LPSSO.
The LPSSO can support up to 60 pF or higher in maximum capacitive loads with up to 3 additional drive strength settings. Refer to the
Harmonic amplitude (dB)
FIGURE 3. HARMONIC EMI REDUCTION AS A FUNCTION OF
SLOWER RISE/FALL TIME (SoftLevel FUNCTION)
Rise/Tall Time Tables to determine the proper drive strength for
10
the desired combination of output load vs. rise/fall time.
0
LPSSO DRIVE STRENGTH SELECTION
-10
Tables 1 through 4 define the rise/fall time for a given capacitive load
-20
and supply voltage.
-30
1.
-40
voltage (1.8V, 2.5V, 2.8V, 3.3V).
2.
-50
Select the capacitive load column that matches the application requirement (15 pF to 60 pF)
-60
3.
-70
-80
Select the table that matches the LPSSO nominal supply
Under the capacitive load column, select the desired
rise/fall times.
1
3
trise=0.05
trise=3
5
7
9
Harmonic number
trise=0.1
trise=0.15
trise=0.35
The left-most column represents the part number code for
the corresponding drive strength.
5.
trise=0.2
trise=0.4
11
4.
Add the drive strength code to the part number for
trise=0.25
trise=0.45
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PAGE 3 OF 8 I SPEC 01 I REV.00 I OKTOBER 2014
PETERMANN-TECHNIK GmbH
Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech
Tel: +49/8191/305395 ∙ Fax: +49/8191/305397
[email protected] ∙ www.petermann-technik.com
PROGRAMMABLE DRIVE STRENGTH (continued)
CALCULATING MAXIMUM FREQUENCY
Calculate fMAX for the following condition:
Based on the rise and fall time data given in Tables 1 through 4, the
+ VDD = 3.3V (Table 1)
+ Capacitive Load: 30pF
+ Desired Tr/f time = 1.6ns (rise/fall time part number code=Z)
maximum frequency the oscillator can operate with guaranteed
full swing of the output voltage over temperature as follows:
Part number for the above example:
EXAMPLE 1
Max. frequency
=
LPSSO33-2520-E-50-M-25.000MHZ-T-S-A
1
5 x Trf_20/80
Drive strength code is inserted here. Standard setting is “S”
RISE/FALL TIME (20% TO 80%) vs CLOAD[4]
TABLE 1. RISE/FALL TIMES, VDD = 1.8V ±5%, T = 40°C TO 85°C
TABLE 2. RISE/FALL TIMES, VDD = 2.5V ±10%, T = 40°C TO 85°C
LOAD (pF)
LOAD (pF)
DRIVE STRENGTH
U
X
Z
S = standard
UNIT
15
30
45
60
Max.
ns
4.2
6.8
9.4
12.1
Typ.
ns
3.1
5.1
7.3
9.2
Max.
ns
3.2
4.9
6.9
8.7
Typ.
ns
2.3
3.7
5.3
6.5
Max.
ns
2.7
3.9
5.5
6.7
Typ.
ns
1.7
2.9
4.2
5.2
Max.
ns
2.5
3.3
4.6
5.7
Typ.
ns
1.4
2.4
3.4
4.3
TABLE 3. RISE/FALL TIMES, VDD = 2.8V ±10%, T = 40°C TO 85°C
DRIVE STRENGTH
U
X
S = standard
H
UNIT
15
30
45
60
Max.
ns
2.8
4.6
6.8
8.3
Typ.
ns
2.1
3.6
5.2
6.4
Max.
ns
2.3
3.3
5.0
5.9
Typ.
ns
1.4
2.5
3.7
4.7
Max.
ns
2.0
2.6
3.4
4.8
Typ.
ns
1.1
1.9
2.8
3.6
Max.
ns
1.3
2.2
3.3
4.0
Typ.
ns
0.9
1.6
2.3
2.9
TABLE 4. RISE/FALL TIMES, VDD = 3.3V ±10%, T = 40°C TO 85°C
LOAD (pF)
LOAD (pF)
DRIVE STRENGTH
U
X
S = standard
H
UNIT
15
30
45
60
Max.
ns
2.5
4.1
6.0
7.3
Typ.
ns
2.0
3.2
4.8
5.9
Max.
ns
2.2
3.0
4.5
5.4
Typ.
ns
1.3
2.2
3.3
4.3
Max.
ns
2.0
2.4
3.5
4.3
Typ.
ns
1.0
1.7
2.5
3.2
Max.
ns
1.2
1.9
2.9
3.6
Typ.
ns
0.7
1.5
2.0
2.6
DRIVE STRENGTH
U
S = standard
Z
H
UNIT
15
30
45
60
Max.
ns
2.4
3.5
5.5
6.4
Typ.
ns
1.7
2.8
4.3
5.4
Max.
ns
2.0
2.5
3.9
4.8
Typ.
ns
1.1
2.0
2.9
3.8
Max.
ns
1.2
2.0
3.0
3.7
Typ.
ns
0.8
1.6
2.2
2.9
Max.
ns
0.9
1.7
2.5
3.0
Typ.
ns
0.6
1.3
1.9
2.3
Note: 4. All rise/fall times are measured for the thresholds of 20% to 80% of VDD.
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PAGE 4 OF 8 I SPEC 01 I REV.00 I OKTOBER 2014
PETERMANN-TECHNIK GmbH
Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech
Tel: +49/8191/305395 ∙ Fax: +49/8191/305397
[email protected] ∙ www.petermann-technik.com
DIMENSIONS AND PATTERNS
RECOMMENDED LAND PATTERN (UNIT:MM) [5]
PACKAGE SIZE – DIMENSIONS (UNIT:MM)
2.5 X 2.0 X 0.75 MM
#1
1.9
1.00
#3
#3
#1
#2
#2
1.0
1.1
1.5
#4
0.5
2.5±0.05
2.0±0.05
#4
1.1
0.75±0.05
0.75
RECOMMENDED LAND PATTERN (UNIT:MM)
PACKAGE SIZE – DIMENSIONS (UNIT:MM)
3.2 X 2.5 X 0.75 MM
#1
2.2
2.1
#3
#3
#1
#2
#2
1.2
0.9
1.9
#4
0.7
3.2±0.05
2.5±0.05
#4
1.4
0.75±0.05
0.9
RECOMMENDED LAND PATTERN (UNIT:MM)
PACKAGE SIZE – DIMENSIONS (UNIT:MM)
5.0 X 3.2 X 0.75 MM
#3
#1
#2
#2
1.1
1.6
2.2
#4
1.15
1.5
0.75±0.05
#1
2.54
2.39
#3
0.8
5.0±0.05
3.2±0.05
#4
Note: 5. A capacitor value of 0.1 µF between VDD and GND is recommended.
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PAGE 5 OF 8 I SPEC 01 I REV.00 I OKTOBER 2014
PETERMANN-TECHNIK GmbH
Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech
Tel: +49/8191/305395 ∙ Fax: +49/8191/305397
[email protected] ∙ www.petermann-technik.com
DIMENSIONS AND PATTERNS
RECOMMENDED LAND PATTERN (UNIT:MM)
PACKAGE SIZE – DIMENSIONS (UNIT:MM)
7.0 X 5.0 X 0.90 MM
#1
5.08
5.08
#3
#3
#1
#2
#2
1.1
2.0
3.81
#4
2.6
7.0±0.05
5.0±0.05
#4
2.2
0.90±0.10
1.4
RECOMMENDED LAND PATTERN (UNIT:MM)
PACKAGE SIZE – DIMENSIONS (UNIT:MM)
7.0 X 5.0 X 0.90 MM WITH CENTER-PAD
#2
#2
1.1
2.0
#1
3.81
#3
2.1
#4
1.7
0.90±0.10
#1
5.08
5.08
#3
2.6
7.0±0.15
5.0±0.15
#4
1.4
2.2
Do not connect the center pad or
Connect it to device’s GND
REFLOW SOLDER PROFILE
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PAGE 6 OF 8 I SPEC 01 I REV.00 I OKTOBER 2014
PETERMANN-TECHNIK GmbH
Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech
Tel: +49/8191/305395 ∙ Fax: +49/8191/305397
[email protected] ∙ www.petermann-technik.com
ORDERING INFORMATION
OSCILLATOR
FAMILY
LPSSO
SUPPLY VOLTAGE
“18“
“25“
“28“
“33“
for 1.8V
for 2.5V
for 2.8V
for 3.3V
TEMPERATURE
RANGE
“M” for -20 +70°C
“W” for -40 +85°C
SPREAD SPECTRUM
PERCENTAGE
FREQUENCY
1.00000 to
110.00000 MHz
LPSSO 33-2520-E-50-M-25.000MHz-T-S-A
FREQUENCY
STABILITY
“50” for ±50 PPM
“100” for ±100 PPM
Please specify when
Spread=OFF is required
PACKAGE SIZE
“2520” for 2.5 X 2.0 mm
“3225” for 3.2 X 2.5 mm
“5032” for 5.0 X 3.2 mm
“7050” for 7.0 X 5.0 mm (without center-pad)
“7051” for 7.0 X 5.0 mm (with center-pad)
PACKING METHOD
“B” for Bulks or Tubes
“T” for Tape & ReeL
OUTPUT DRIVE
STRENGTH
FEATURE PIN
“E” for OUTPUT ENABLE
“S” for STANDBY
“SD” for SPREAD DISABLE
(DOWN SPREAD ONLY)
“S” Standard (datasheet
limits) See Tables 1 to 4
for rise/fall times
“U”
“Z”
“X”
“H”
EXAMPLE: LPSSO33-2520-E-50-M-25.000MHZ-T-S-A
PLEASE INDICATE YOUR REQUIRED PARAMETERS
EXPRESS SAMPLES ARE DELIVERABLE ON THE SAME DAY
IF ORDERED UNTIL 02:00 PM!
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PETERMANN-TECHNIK GmbH
Lechwiesenstr. 13 ∙ D-86899 ∙ Landsberg am Lech
Tel: +49/8191/305395 ∙ Fax: +49/8191/305397
[email protected] ∙ www.petermann-technik.com
PREMIUM QUALITY BY
PETERMANN-TECHNIK
OUR COMPANY IS CERTIFIED ACCORDING TO ISO 9001:2008 IN OCTOBER 2013 BY THE DMSZ CERTIFIKATION GMBH.
THIS IS FOR YOU TO ENSURE THAT THE PRINCIPLES OF QUALITY
MANAGEMENT ARE FULLY IMPLEMENTED IN OUR QUALITY MANAGEMENT SYSTEM AND QUALITY CONTROL METHODS ALSO DOMINATE OUR QUALITY STANDARDS.
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