ABMJB-903
High Performance MEMS Jitter Attenuator
Moisture Sensitivity Level: MSL=1
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
FEATURES: APPLICATIONS:
• 1/10/40/100 Gigabiy Ethernet (GbE)
• SONET/SDH
• PCI-Express
• CPRI/OBSAI wireless base stations
• Fibre Channel
• SAS/SATA
• DIMM
STANDARD SPECIFICATIONS:
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
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LLC
4.0 x 4.0 x 0.85 mm 24-Pin QFN
Absolute Maximum Ratings
(1)
Parameters Min. Typ. Max. Units Notes
Supply Voltage (V
DD
, V
DDO
) +4.6 V
Input Voltage (V
IN
) -0.5 V
DD
+0.5
V
s02 ,gniredloS Cº 062+ erutarepmeT daeL
Cº 511+ erutarepmeT esaC
Storage Temperature (T
S
) -65 +150 ºC
Operation Ratings
(2)
Parameters Min. Typ. Max. Units Notes
Supply Voltage (V
DD
, V
DDO
) +2.375 +3.465 V
Junction Thermal Resistance (
JA
)
(3)
50 ºC/W Still-Air
Ambient Temperature (T
A
) -40 +85 ºC
DC Electrical Characteristics
(4)
V
DD
= V
DDO
= 3.3V±5% or 2.5V±5% ; T
A
= -40°C to +85°C
Parameters Min. Typ. Max. Units Notes
Power Supply Voltage (V
DD
) +2.375 +3.465 V
Total Supply Current, V
DD
+ V
DDO
(I
DD
)
100 120 mA
LVPECL, 321.5MHz, Outputs open
80 100 mA
HCSL (PCIe), 100MHz,
Outputs terminated with 50 to V
SS
70 90 mA
2 x LVCMOS, 125MHz, Outputs open
LVCMOS Inputs (OE, REFIN) DC Electrical Characteristics
(4)
V
DD
= V
DDO
= 3.3V±5% or 2.5V±5% ; T
A
= -40°C to +85°C
Parameters Min. Typ. Max. Units Notes
Input High Voltage (V
IH
)
70% V
DD
V
DD
+0.3
V
Input Low Voltage (V
IN
)
V
SS
-0.3
30% V
DD
V
Input High Current (I
IH
) 150 µA
V
DD
= V
IN
= 3.465V
Input Low Current (I
IL
)
-150 µA
V
DD
= 3.465V, V
IN
= 0V
• Low power and miniature package programmable jitter attenuator
• Input frequency up to 200MHz
• Output frequency up to 840MHz
• Jitter attenuation 20dB at 3 MHz spur frequency
• Additive phase jitter or phase jitter floor:
- 55fs for 1.875MHz to 20MHz
- 251fs for 12MHz to 20MHz
• Single ended CMOS input
• One differential or two single ended outputs. Output logic types
supported are LVPECL, LVDS, HCSL and LVCMOS (single ended or differential).
• Operating temperature range from -40°C to +85°C
• 24-pin QFN RoHS-complaint package
• Related devices:
- ABMJB-902: LVCMOS, period jitter cleaning.
ABMJB-903
High Performance MEMS Jitter Attenuator
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
4.0 x 4.0 x 0.85 mm 24-Pin QFN
LVDS Output DC Electrical Characteristics
(4)
V
DD
= V
DDO
= 3.3V±5% or 2.5V±5% ; T
A
= -40°C to +85°C; R
L
= 100Ω across Q and /Q
Parameters Min. Typ. Max. Units Notes
Differential Output Voltage (V
OD
) 275 350 475 mV
V
OD
Magnitude Change (ΔV
OD
) 40 mV
Offset Voltage (V
OS
) 1.15 1.25 1.5 V
V
OD
Magnitude Change (ΔV
OS
)
50 mV
HCSL Output DC Electrical Characteristics
(4)
V
DD
= V
DDO
= 3.3V±5% or 2.5V±5% ; T
A
= -40°C to +85°C; R
L
= 50Ω to V
SS
Parameters Min. Typ. Max. Units Notes
Output High Voltage (V
OH
) 660 700 850 mV
Output Low Voltage (V
OL
) -150 0 27 mV
Output Voltage Swing (V
SWING
) 630 700 1000 mV
LVPECL Output DC Electrical Characteristics
(4)
V
DD
= V
DDO
= 3.3V±5% or 2.5V±5%; T
A
= -40°C to +85°C; R
L
= 50Ω to V
DD
- 2V
Parameters Min. Typ. Max. Units Notes
Output High Voltage (V
OH
) V
DD
-1.145
V
DD
-0.97
V
DD
-0.845
V
Output Low Voltage (V
OL
) V
DD
-1.945
V
DD
-1.77
V
DD
-1.645
V
Output Voltage Swing (V
SWING
) 0.6 0.8 1.0 V
LVCMOS Output DC Electrical Characteristics
(4)
V
DD
= V
DDO
= 3.3V±5% or 2.5V±5%; T
A
= -40°C to +85°C; R
L
= 50Ω to V
DD
/2
Parameters Min. Typ. Max. Units Notes
Output High Voltage (V
OH
) V
DD
-0.7
V
Output Low Voltage (V
OL
)
0.6
V
See page 8 & 10
See page 10
See page 8 & 10
See page 8 & 10
See page 8 & 9
See page 8 & 9
See page 8 & 9
See page 8 & 10
ABMJB-903
High Performance MEMS Jitter Attenuator
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
4.0 x 4.0 x 0.85 mm 24-Pin QFN
LVPECL AC Electrical Characteristics
(4, 5, 6, 10)
V
DD
= V
DDO
= 3.3V±5% or 2.5V±5% ; T
A
= -40°C to +85°C, unless otherwise noted
Parameters Min. Typ. Max. Units Notes
Output Frequency (F
OUT
) 12 840 MHz
LVPECL Output Rise/Fall Time
(T
R
/T
F
) 80 175 350 ps 20% - 80%
Output Duty Cycle (ODC) 48 50 52 % F
OUT
< 350MHz
45 50 55 F
OUT
≥ 350MHz
PLL Lock Time (T
LOCK
) 20 ms
RMS Phase Jitter @ 156.25MHz
with Clean Input Signal (T
jit
(Ø))
251 fs
Integration range (12kHz to 20MHz)
55 fs
Integration range (1.875MHz to 20MHz)
LVDS AC Electrical Characteristics
(4, 5, 6, 7)
V
DD
= V
DDO
= 3.3V±5% or 2.5V±5% ; T
A
= -40°C to +85°C, unless otherwise noted
Parameters Min. Typ. Max. Units Notes
Output Frequency (F
OUT
) 12 840 MHz
LVDS Output Rise/Fall Time
(T
R
/T
F
) 100 160 400 ps 20% - 80%
Output Duty Cycle (ODC) 48 50 52 % < 350MHz
45 50 55 ≥350MHz
PLL Lock Time (T
LOCK
) 20 ms
RMS Phase Jitter @ 156.25MHz
(T
jit
(Ø)) 60 fs
Integration range (1.875MHz to 20MHz)
HCSL AC Electrical Characteristics
(4, 5, 6, 8)
V
DD
= V
DDO
= 3.3V±5% or 2.5V±5% ; T
A
= -40°C to +85°C, unless otherwise noted
Parameters Min. Typ. Max. Units Notes
Output Frequency (F
OUT
) 12 840 MHz
LVDS Output Rise/Fall Time
(T
R
/T
F
) 150 300 450 ps 20% - 80%
Output Duty Cycle (ODC) 48 50 52 % < 350MHz
45 50 55 ≥350MHz
PLL Lock Time (T
LOCK
) 20 ms
RMS Phase Jitter @ 100MHz
(T
jit
(Ø)) 250 fs
Integration range (12kHz to 20MHz)
ABMJB-903
High Performance MEMS Jitter Attenuator
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
4.0 x 4.0 x 0.85 mm 24-Pin QFN
LVCMOS AC Electrical Characteristics
(4, 5, 6, 9)
V
DD
= V
DDO
= 3.3V±5% or 2.5V±5% ; T
A
= -40°C to +85°C, unless otherwise noted
Parameters Min. Typ. Max. Units Notes
Output Frequency (F
OUT
) 12 250 MHz
REFIN Frequency (F
REF
) 12 200 MHz
REFIN Amplitude (V
REF
)
40% V
DD
V
DD
+ 0.6
V
PP
Output Rise/Fall Time (T
R
/T
F
) 100 500 ps 20% - 80%
Output Duty Cycle (ODC) 45 50 55
PLL Lock Time (T
LOCK
) 20 ms
RMS Phase Jitter @ 125MHz
(T
jit
(Ø)) 55 fs
Integration range (1.875MHz to 20MHz)
Notes:
1. Exceeding the absolute maximum ratings may damage the device.
2. The device is not guaranteed to function outside tis operating ratings.
3. Package thermal resistance assumes the exposed pad is soldered (or equivalent) to the device’s most negative potential on
the PCB.
4. The circuit is designed to meet the AC and DC specifications shown in the Electrical Characteristics tables after thermal
equilibrium has been established.
5. See Section 7.1.7 through 7.1.10 for load test circuit examples.
6. All phase noise measurements were taken with an Agilent 5052B phase noise system.
7. Outputs terminated 100Ω between Q and /Q. All unused outputs must be terminated.
8. Output load is 50Ω to V
SS
.
9. Output load is 50Ω to V
DD
/2.
10. Output load is 50Ω to V
DD
-2V.
Please refer to the ABMJB-903 Part Number and Configuration Guide for available part
numbers and configurations.
OPTIONS AND PART IDENTIFICATION:
OUTLINE DIMENSION:
ABMJB-903
High Performance MEMS Jitter Attenuator
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
Dimension: mm
4.0 x 4.0 x 0.85 mm 24-Pin QFN
Notes:
1. Max package warpage is 0.05mm.
2. Max allowable burr is 0.076mm in all directions.
3. Pin 1is on top and will be laser marked.
4. Red circles in land pattern indicate thermal vias. Size should be 0.30 – 0.35M in
diameter and should be connected to GND for max thermal performance.
5. Green rectangles (shaded area) indicate solder stencil opening on exposed pad
area. Size should be 1.00 x 1.00 mm in size, 1.20mm pitch.
Pin No. Configuration
22 Q
23 /Q
3 REFIN
12 OE
1, 20 VDD
17, 24 VDDO
2, 8, 13, 14,
15, 21 VSS
4, 5, 7, 9,
11, 16, 18 DNC
6, 10, 19 DNC
ePad Exposed Pad
PIN DESCRIPTION:
ABMJB-903
High Performance MEMS Jitter Attenuator
4.0 x 4.0 x 0.85 mm 24-Pin QFN
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
BLOCK DIAGRAM:
24-Pin QFN package
Pin No. Pin Name Pin Type Pin Level Function
22 Q
O Various
Clock output
Can be programmed to one of the following logic types:
(1)
LVPECL, LVDS, HCSL or LVCMOS
23 /Q
3 REFIN I, (SE) Various
Reference clock input
Can be programmed to either LVCMOS levels or smaller
amplitude signals from other logic types
12 OE I LVCMOS Output enable control input with pull-up (45k)
1, 20 VDD PWR Core power supply
17, 24 VDDO PWR Output buffer power supply
2, 8, 13, 14,
15, 21 VSS PWR Power supply ground
4, 5, 7, 9,
11, 16, 18 DNC Used for production test
Do not connect anything to these pins
6, 10, 19 DNC Not internally connected. No need to connect anything to
these pins.
ePad Exposed Pad GND The center pad must be connected to the ground plane both
for electrical ground and thermal relief.
Notes:
1. In case of LVCMOS, the output pair can provide two single-ended LVCMOS outputs.
FUNCTIONAL DESCRIPTION
ABMJB-903
High Performance MEMS Jitter Attenuator
4.0 x 4.0 x 0.85 mm 24-Pin QFN
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
ABMJB-903 series is a very flexible, advanced programmable jitter filter design for high performance, small form-factor
applications. The ABMJB-903 accepts a reference clock input between 12MHz and 200MHz and is capable of producing
one differential output up to 840MHz or two single ended outputs up to 250MHz. The most common configuration will
be with the same input and output frequency but this flexible design also allows frequency translation from one
frequency to another frequency, as long as both frequencies are within the specified ranges for input and output.
Jitter Attenuation
Typically the jitter attenuation settings will be optimized for one particular input and output frequency. Customization of
attenuation properties is possible.
The lowest possible output phase jitter, or phase jitter floor, is 251fs for the 12kHz to 20MHz integration range and 55fs
for the Gigabit Ethernet integration range of 1.875MHz to 20MHz. The ABMLB-903 excels at attenuating deterministic
jitter that presents itself as spurs in the phase noise plot above 1MHz.
Clock Output
The output pins Q and /Q make a differential output that can be programmed to several different logic types: LVPECL,
LVDS, HCSL or LVCMOS. In the case of LVCMOS, there are three possible configurations:
1. One single-ended output with the complementary pin disabled to a high impedance.
2. Two single-ended, in-phase outputs.
3. A differential output with opposite phases at the two output pins
Output Frequency
The most common configuration is where the output frequency is the same as the input frequency. However, frequency
translations are possible. The input frequency upper limit is 200MHz, but the output can go up to 840MHz.
Output Enable (OE)
The Output Enable feature allows the user to enable and disable the clock output(s) by toggling the OE pin. The OE pin
incorporates a 45kΩ pull-up resistor giving a default condition of logic “1” that enables the output(s).
Reference (Noisy) Clock Input (REFIN)
The input requires a single-ended CMOS signal. The frequency range for the input is 12MHz to 200MHz.
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
APPLICATION INFORMATION
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
4.0 x 4.0 x 0.85 mm 24-Pin QFN
High Performance MEMS Jitter Attenuator
Power Supply Filtering Recommendations
Preferred filter, using Micrel’s MIC94300 or MIC94310 Ripple Blocker™:
Alternative, traditional filter, using a ferrite bead:
Power Supply Decoupling
Place the smallest value decoupling capacitor (4.7nF above) between the VDD and VSS pins, as close as possible to
those pins and at the same side of the PCB as the IC. The shorter the physical path from VDD to capacitor and back from
capacitor to VSS, the more effective the decoupling. Use one 4.7nF capacitor for each VDD pin on the ABMJB-903.
The impedance value of the ferrite bead (FB) needs to be between 240 and 600 with a saturation current ≥150mA.
VDDO pins connect directly to the VDD plane. All VDD pins on the ABMJB-903 connect to VDD after the power
supply filter.
Output Traces
Design the traces for the output signals according to the output logic requirements. If LVCMOS is unterminated, add a
30 resistor in series with the output, as close as possible to the output pin, and start a 50 trace on the other side of the
resistor.
For differential traces, you can either use a differential design or two separate 50 traces. For EMI reasons, it is better to
use a differential design.
LVDS can be AC-coupled or DC-coupled to its termination.
Duty Cycle Timing
ABMJB-903
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
4.0 x 4.0 x 0.85 mm 24-Pin QFN
High Performance MEMS Jitter Attenuator
All Outputs Rise/Fall Time
RMS Phase Noise Jitter
LVPECL Output Load and Test Circuit
ABMJB-903
APPLICATION INFORMATION
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
4.0 x 4.0 x 0.85 mm 24-Pin QFN
High Performance MEMS Jitter Attenuator
HCSL Output Load and Test Circuit
LVDS Output Load and Test Circuit
LVCMOS Output Load and Test Circuit
APPLICATION INFORMATION
ABMJB-903
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
JITTER ATTENUATION PERFORMANCE
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
4.0 x 4.0 x 0.85 mm 24-Pin QFN
High Performance MEMS Jitter Attenuator
The jitter attenuating frequency response was measured at 156.25MHz.
-40
-30
-20
-10
0
10
1.E+03 1.E+04 1.E+05 1.E+06 1.E+07
)Bd( noitaunettA rettiJ
Jitter / Modulation Frequency (Hz)
The jitter attenuation works like a low-pass filter for frequency modulated signals or noise. The bandwidth for this low
pass filter is 500kHz with a 12dB/octave slope above 500kHz. At about 6MHz the noise floor of this measurement is
reached but in reality, the attenuation continues with the 12dB/octave slope.
Phase noise performance with a clean input clock:
156.25MHz with 55fsRMS for phase jitter for 1.875MHz to 20MHz integration range
156.25MHz with 251fsRMS for phase jitter for 12kHz to 20MHz integration range
ABMJB-903
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
JITTER ATTENUATION PERFORMANCE
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
4.0 x 4.0 x 0.85 mm 24-Pin QFN
High Performance MEMS Jitter Attenuator
Example: 156.25MHz input test clock with bad phase jitter caused by a 3MHz spur – 1.1psRMS of phase jitter for
1.875MHz to 20MHz integration range
Output Clock from ABMJB-903: The 3MHz spur is attenuated by 20dB, resulting in a phase jitter reduction from 1.1ps
to 0.10ps for 1.875MHz to 20MHz integration range
ABMJB-903
Pb
RoHS/RoHS II Compliant
ESD Sensitive
CERTIFIED
ABRACON IS
CERTIFIED
ABRACON IS
ISO9001:2008
CERTIFIED
REFLOW PROFILE:
TAPE & REEL:
Dimensions: mm
ATTENTION: Abracon Corporation’s products are COTS – Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applica-
tions. Abracon’s products are not specifically designed for Military, Aviation, Aerospace, Life-dependant Medical applications or any application requiring high reliability where
component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and
authorization from Abracon Corporation is required. Please contact Abracon Corporation for more information.
2 Faraday, Suite# B
|
Irvine
|
CA 92618
Revised: 03.26.15
Ph. 949.546.8000
|
Fax. 949.546.8001
Visit www.abracon.com for Terms and Conditions of Sale
LLC
4.0 x 4.0 x 0.85 mm 24-Pin QFN
High Performance MEMS Jitter Attenuator
Parameters
Specifications
Average Ramp-up Rate
3°C /second max.
Pre-Heat Temp 150 – 200°C
60 – 180 second
Temp > 217°C
60 – 150 second
Time @ Peak Temperature
20 – 40 second
Peak Temperature
260°C + 0°C / -5°C
Ramp-down Rate
-6°C / second max.
Time 25°C to Peak Temp.
8 minutes max.
Packaging:
T: 1000pcs/reel
T5: 500pcs/reel
ABMJB-903
