High Performance MEMS Jitter Attenuator ABMJB-903 ESD Sensitive Pb RoHS/RoHS II Compliant Moisture Sensitivity Level: MSL=1 FEATURES: * 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 -40C to +85C * 24-pin QFN RoHS-complaint package * Related devices: - ABMJB-902: LVCMOS, period jitter cleaning. 4.0 x 4.0 x 0.85 mm 24-Pin QFN APPLICATIONS: * 1/10/40/100 Gigabiy Ethernet (GbE) * SONET/SDH * PCI-Express * CPRI/OBSAI wireless base stations * Fibre Channel * SAS/SATA * DIMM STANDARD SPECIFICATIONS: Absolute Maximum Ratings (1) Parameters Min. Typ. Max. Units +4.6 V VDD +0.5 V Lead Temperature + 260 C Case Temperature + 115 C +150 C Max. Units +3.465 50 +85 V C/W C Typ. Max. Units 100 +3.465 120 V mA 80 100 mA 70 90 mA Supply Voltage (VDD, VDDO) Input Voltage (VIN) -0.5 Storage Temperature (TS) -65 Notes Soldering, 20s Operation Ratings (2) Parameters Supply Voltage (VDD, VDDO) Junction Thermal Resistance ( Ambient Temperature (TA) Min. Typ. +2.375 (3) JA) -40 Notes Still-Air DC Electrical Characteristics (4) VDD = VDDO = 3.3V5% or 2.5V5% ; T A = -40C to +85C Parameters Power Supply Voltage (VDD) Min. +2.375 Total Supply Current, VDD + VDDO (IDD) Notes LVPECL, 321.5MHz, Outputs open HCSL (PCIe), 100MHz, Outputs terminated with 50 to VSS 2 x LVCMOS, 125MHz, Outputs open LVCMOS Inputs (OE, REFIN) DC Electrical Characteristics (4) VDD = VDDO = 3.3V5% or 2.5V5% ; T A = -40C to +85C Parameters Input High Voltage (VIH) Input Low Voltage (VIN) Input High Current (IIH) Input Low Current (IIL) ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED Min. Typ. Max. Units 70% VDD VDD+0.3 VSS-0.3 30% VDD V V A A 150 -150 LLC Notes VDD = VIN = 3.465V VDD = 3.465V, VIN = 0V 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 High Performance MEMS Jitter Attenuator ABMJB-903 Pb RoHS/RoHS II Compliant ESD Sensitive 4.0 x 4.0 x 0.85 mm 24-Pin QFN LVDS Output DC Electrical Characteristics (4) VDD = VDDO = 3.3V5% or 2.5V5% ; T A = -40C to +85C; RL = 100 across Q and /Q Parameters Min. Typ. Max. Units Differential Output Voltage (VOD) VOD Magnitude Change (VOD ) 275 350 475 40 mV mV Offset Voltage (VOS) VOD Magnitude Change (VOS ) 1.15 1.25 1.5 50 V mV Notes See page 10 HCSL Output DC Electrical Characteristics (4) VDD = VDDO = 3.3V5% or 2.5V5% ; T A = -40C to +85C; RL = 50 to VSS Parameters Min. Typ. Max. Units Notes Output High Voltage (VOH) Output Low Voltage (VOL) 660 -150 700 0 850 27 mV mV See page 8 & 10 See page 8 & 10 Output Voltage Swing (VSWING) 630 700 1000 mV See page 8 & 10 LVPECL Output DC Electrical Characteristics (4) VDD = VDDO = 3.3V5% or 2.5V5%; T A = -40C to +85C; RL = 50 to VDD - 2V Parameters Output High Voltage (VOH) Output Low Voltage (VOL) Output Voltage Swing (VSWING) Min. Typ. Max. Units Notes VDD-1.145 VDD-1.945 VDD-0.97 VDD-1.77 VDD-0.845 VDD-1.645 V V See page 8 & 9 0.6 0.8 1.0 V See page 8 & 9 See page 8 & 9 LVCMOS Output DC Electrical Characteristics (4) VDD = VDDO = 3.3V5% or 2.5V5%; T A = -40C to +85C; RL = 50 to VDD/2 Parameters Output High Voltage (VOH) Output Low Voltage (VOL) ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED Min. Typ. Max. Units 0.6 V V VDD-0.7 LLC Notes See page 8 & 10 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 High Performance MEMS Jitter Attenuator ABMJB-903 Pb RoHS/RoHS II Compliant ESD Sensitive 4.0 x 4.0 x 0.85 mm 24-Pin QFN LVPECL AC Electrical Characteristics (4, 5, 6, 10) VDD = VDDO = 3.3V5% or 2.5V5% ; T A = -40C to +85C, unless otherwise noted Parameters Output Frequency (FOUT) LVPECL Output Rise/Fall Time (TR/TF) Output Duty Cycle (ODC) Min. Typ. 12 Max. Units 840 MHz ps 80 175 350 48 50 52 45 50 55 20 PLL Lock Time (TLOCK) % 20% - 80% FOUT < 350MHz FOUT 350MHz ms 251 55 RMS Phase Jitter @ 156.25MHz with Clean Input Signal (Tjit(O)) Notes fs fs Integration range (12kHz to 20MHz) Integration range (1.875MHz to 20MHz) LVDS AC Electrical Characteristics (4, 5, 6, 7) VDD = VDDO = 3.3V5% or 2.5V5% ; T A = -40C to +85C, unless otherwise noted Parameters Output Frequency (FOUT) LVDS Output Rise/Fall Time (TR/TF) Output Duty Cycle (ODC) Min. Typ. 12 Max. Units 840 MHz ps 20% - 80% % < 350MHz 350MHz 100 160 400 48 45 50 50 52 55 20 PLL Lock Time (TLOCK) RMS Phase Jitter @ 156.25MHz (Tjit(O)) Notes ms 60 fs Integration range (1.875MHz to 20MHz) HCSL AC Electrical Characteristics (4, 5, 6, 8) VDD = VDDO = 3.3V5% or 2.5V5% ; T A = -40C to +85C, unless otherwise noted Parameters Output Frequency (FOUT) LVDS Output Rise/Fall Time (TR/TF) Output Duty Cycle (ODC) PLL Lock Time (TLOCK) RMS Phase Jitter @ 100MHz (Tjit(O)) ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED Min. Typ. 12 Max. Units 840 MHz ps 20% - 80% % < 350MHz 350MHz 150 300 450 48 45 50 50 52 55 20 250 ms fs LLC Notes Integration range (12kHz to 20MHz) 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 High Performance MEMS Jitter Attenuator ABMJB-903 Pb RoHS/RoHS II Compliant ESD Sensitive 4.0 x 4.0 x 0.85 mm 24-Pin QFN LVCMOS AC Electrical Characteristics (4, 5, 6, 9) VDD = VDDO = 3.3V5% or 2.5V5% ; T A = -40C to +85C, unless otherwise noted Parameters Max. Units 12 12 250 200 REFIN Amplitude (VREF) Output Rise/Fall Time (TR/TF) 40% VDD VDD + 0.6 100 500 MHz MHz VPP ps Output Duty Cycle (ODC) PLL Lock Time (TLOCK) RMS Phase Jitter @ 125MHz (Tjit(O)) 45 55 20 ms Output Frequency (FOUT) REFIN Frequency (FREF) Min. Typ. 50 55 fs Notes 20% - 80% Integration range (1.875MHz to 20MHz) Notes: 1. 2. 3. Exceeding the absolute maximum ratings may damage the device. The device is not guaranteed to function outside tis operating ratings. 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 100 between Q and /Q. All unused outputs must be terminated. 8. Output load is 50 to VSS. 9. Output load is 50 to VDD/2. 10. Output load is 50 to VDD-2V. OPTIONS AND PART IDENTIFICATION: Please refer to the ABMJB-903 Part Number and Configuration Guide for available part numbers and configurations. ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED LLC 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 High Performance MEMS Jitter Attenuator ABMJB-903 ESD Sensitive Pb RoHS/RoHS II Compliant 4.0 x 4.0 x 0.85 mm 24-Pin QFN OUTLINE DIMENSION: Pin No. 22 23 3 12 1, 20 17, 24 2, 8, 13, 14, 15, 21 4, 5, 7, 9, 11, 16, 18 6, 10, 19 ePad Configuration Q /Q REFIN OE VDD VDDO VSS DNC DNC Exposed Pad 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. Dimension: mm ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED LLC 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 High Performance MEMS Jitter Attenuator ABMJB-903 Pb RoHS/RoHS II Compliant ESD Sensitive 4.0 x 4.0 x 0.85 mm 24-Pin QFN PIN DESCRIPTION: 24-Pin QFN package Pin No. Pin Name Pin Type Pin Level 22 Q 23 /Q 3 O Various REFIN I, (SE) Various 12 OE I LVCMOS 1, 20 VDD PWR Core power supply 17, 24 2, 8, 13, 14, 15, 21 4, 5, 7, 9, 11, 16, 18 VDDO PWR Output buffer power supply VSS PWR Power supply ground 6, 10, 19 DNC ePad Exposed Pad Notes: 1. DNC GND Function Clock output Can be programmed to one of the following logic types: (1) LVPECL, LVDS, HCSL or LVCMOS Reference clock input Can be programmed to either LVCMOS levels or smaller amplitude signals from other logic types Output enable control input with pull-up (45k ) Used for production test Do not connect anything to these pins Not internally connected. No need to connect anything to these pins. The center pad must be connected to the ground plane both for electrical ground and thermal relief. In case of LVCMOS, the output pair can provide two single-ended LVCMOS outputs. BLOCK DIAGRAM: ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED LLC 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 High Performance MEMS Jitter Attenuator ABMJB-903 ESD Sensitive Pb RoHS/RoHS II Compliant 4.0 x 4.0 x 0.85 mm 24-Pin QFN FUNCTIONAL DESCRIPTION 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 45k 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. ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED LLC 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 High Performance MEMS Jitter Attenuator ABMJB-903 ESD Sensitive Pb RoHS/RoHS II Compliant 4.0 x 4.0 x 0.85 mm 24-Pin QFN APPLICATION INFORMATION Power Supply Filtering Recommendations Preferred filter, using Micrel's MIC94300 or MIC94310 Ripple BlockerTM: 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 ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED LLC 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 High Performance MEMS Jitter Attenuator ABMJB-903 ESD Sensitive Pb RoHS/RoHS II Compliant 4.0 x 4.0 x 0.85 mm 24-Pin QFN APPLICATION INFORMATION All Outputs Rise/Fall Time RMS Phase Noise Jitter LVPECL Output Load and Test Circuit ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED LLC 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 High Performance MEMS Jitter Attenuator ABMJB-903 ESD Sensitive Pb RoHS/RoHS II Compliant 4.0 x 4.0 x 0.85 mm 24-Pin QFN APPLICATION INFORMATION HCSL Output Load and Test Circuit LVDS Output Load and Test Circuit LVCMOS Output Load and Test Circuit ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED LLC 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 High Performance MEMS Jitter Attenuator ABMJB-903 Pb RoHS/RoHS II Compliant ESD Sensitive 4.0 x 4.0 x 0.85 mm 24-Pin QFN JITTER ATTENUATION PERFORMANCE The jitter attenuating frequency response was measured at 156.25MHz. 10 Jitte r Atte nuatio n (dB) 0 -10 -20 -30 -40 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 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 ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED LLC 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 High Performance MEMS Jitter Attenuator ABMJB-903 ESD Sensitive Pb RoHS/RoHS II Compliant 4.0 x 4.0 x 0.85 mm 24-Pin QFN JITTER ATTENUATION PERFORMANCE 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 ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED LLC 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 High Performance MEMS Jitter Attenuator ABMJB-903 ESD Sensitive Pb RoHS/RoHS II Compliant 4.0 x 4.0 x 0.85 mm 24-Pin QFN REFLOW PROFILE: Parameters Average Ramp-up Rate Pre-Heat Temp 150 - 200C Temp > 217C Time @ Peak Temperature Peak Temperature Ramp-down Rate Time 25C to Peak Temp. Specifications 3C /second max. 60 - 180 second 60 - 150 second 20 - 40 second 260C + 0C / -5C -6C / second max. 8 minutes max. TAPE & REEL: Packaging: T: 1000pcs/reel T5: 500pcs/reel Dimensions: mm ATTENTION: Abracon Corporation's products are COTS - Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applications. 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. ABRACON IS ISO9001:2008 CE RTIFIED CE RTIFIED LLC 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