Analog Frequency Multiplier PL663-xx XO Families DESCRIPTION PhaseLink’s Analog Frequency Multipliers TM (AFMs) are the industry’s first “Balanced Oscillator” utilizing analog multiplication of the fundamental frequency (at double or quadruple frequency), combined with an attenuation of the fundamental of the reference crystal, without using a phase-locked loop (PLL), in CMOS technology. PhaseLink’s patent pending PL663-xx family of AFM products can achieve up to 800 MHz differential LVPECL, LVDS, or single-ended LVCMOS output with little jitter or phase noise deterioration. PL663-xx family of products utilizes a low-power CMOS technology and is housed in GREEN/ RoHS compliant 16-pin TSSOP and 3x3 QFN packages. FEATURES • Non-PLL frequency multiplication • Input frequency from 30-200 MHz • Output frequency from 60-800 MHz • Low phase noise and jitter (equivalent to fundamental at the output frequency) • Ultra-low jitter o RMS phase jitter < 0.25 ps (12 kHz to 20 MHz) o RMS period jitter < 2.5 ps typ. • Low phase noise o -145 dBc/Hz @ 100 kHz offset from 155.52 MHz o -150 dBc/Hz @ 10 MHz offset from 155.52 MHz • Low input frequency eliminates the need for expensive crystals • Differential LVPECL/LVDS, or single-ended LVCMOS output • Single 2.5V or 3.3V +/- 10% power supply • Optional industrial temperature range (-40°C to +85°C) • Available in 16-pin GREEN/RoHS compliant TSSOP, and 16-pin 3x3 QFN packages. Figure 1: 2X AFM Phase Noise at 212.5 MHz (106.25 MHz 3rd overtone crystal) 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 www.phaselink.com Rev. 02/18/10 Page 1 Analog Frequency Multiplier PL663-xx XO Families L2X OE X IN R O s c illa t o r A m p lif ie r XOUT QBAR F re q u e n c y X2 F re q u e n c y X4 Q O n ly r e q u ir e d in x 4 d e s ig n s L4X Figure 2: Block Diagram of AFM XO Figure 3 shows the period jitter histogram of the 2x Analog Frequency Multiplier at 212.5 MHz, while Figure 4 shows the very low levels of sub-harmonics that correspond to the exceptional performance (i.e. low jitter). Figure 3: Period Jitter Histogram at 212.5MHz Analog Frequency Multiplier (2x), with 106.25 MHz crystal Figure 4: Spectrum Analysis at 212.5MHz Analog Frequency Multiplier (2x), with sub-harmonics below –69dBc OE LOGIC SELECTION OUTPUT OESEL 0 (Default) LVPECL 1 0 (Default) LVDS or LVCMOS 1 OE Output State 0 (Default) 1 0 1 (Default) 0 1 (Default) 0 (Default) 1 Enabled Tri-state Tri-state Enabled Tri-state Enabled Enabled Tri-state OESEL and OE: Connect to V DD to set to “1”, connect to GND to set to “0”. [The ‘Default’ state is set by internal pull up/down resistor.] 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 www.phaselink.com Rev. 02/18/10 Page 2 Analog Frequency Multiplier PL663-xx XO Families PRODUCT SELECTOR GUIDE FREQUENCY VERSUS PHASE NOISE PERFORMANCE Phase Noise at Frequency Offset From Carrier (dBc/Hz) Input Frequency Range (MHz) Analog Multiplication Factor Output Frequency Range (MHz) Output Type PL663-07 30 - 80 2 60 to 160 PL663-08 30 - 80 2 PL663-17 75 - 140 PL663-18 Part Number Carrier Freq. (MHz) 10Hz 100Hz 1KHz 10KHz 100KHz 1MHz 10MHz LVCMOS 156.25 -75 -105 -130 -140 -145 -150 -150 60 to 160 LVPECL 156.25 -75 -105 -130 -140 -145 -150 -150 2 150 to 280 LVCMOS 212.5 -70 -100 -130 -140 -145 -148 -148 75 - 140 2 150 to 280 LVPECL 212.5 -70 -100 -130 -140 -145 -148 -148 PL663-19 75 - 140 2 150 to 280 LVDS 212.5 -70 -100 -130 -140 -145 -148 -148 PL663-28 140 - 160 2 280 to 320 LVPECL 311.04 -60 -92 -122 -140 -142 -146 -146 PL663-29 100 - 160 2 200 to 320 LVDS 311.04 -60 -92 -122 -140 -142 -146 -148 FREQUENCY VERSUS JITTER, AND SUB-HARMONIC PERFORMANCE Part Number Output Freq. (MHz) RMS Period Jitter (ps) Peak to Peak Period Jitter (ps) RMS Accumulated (L.T.) Jitter (ps) Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Phase Jitter (12 KHz-20MHz) (ps) Min. Typ. Max. Spectral Specifications / Sub-harmonic Content (dBc) Frequency (MHz) Carrier Freq. MHz (Fc) @ -75% (Fc) @ -50% (Fc) @ -25% (Fc) @ +25% (Fc) @ +50% (Fc) PL663-07 156.25 2 3 18 20 3 0.24 156.25 -70 -75 PL663-08 156.25 2 3 18 20 3 0.24 156.25 -70 -75 PL663-17 212.50 2.5 4 18 20 4 0.19 212.50 -70 -75 PL663-18 212.50 2.5 4 18 20 4 0.19 212.50 -70 -75 PL663-19 212.50 2.5 4 18 20 4 0.19 212.50 -70 -75 PL663-28 311.04 2.5 4 18 20 4 0.16 311.04 -65 -70 PL663-29 311.04 2.5 4 18 20 4 0.16 311.04 -65 -70 @ +75% (Fc) Note: Wavecrest data 10,000 hits. No Filtering was used in Jitter Calculations. Agilent E5500 was used for phase jitter measurements. Spectral specifications were obtained using Agilent E7401A. 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 www.phaselink.com Rev. 02/18/10 Page 3 Analog Frequency Multiplier PL663-xx XO Families BOARD LAYOUT CONSIDERATIONS AND CRYSTAL SPECIFICATIONS BOARD LAYOUT CONSIDERATIONS To minimize parasitic effects and improve performance, do the following: • Place the crystal as close as possible to the IC. • Make the board traces that are connected to the crystal pins symmetrical. The board trace symmetry is very important, as it reduces the negative parasitic effects to produce clean frequency multiplication with low jitter. CRYSTAL SPECIFICATIONS CL (xtal) ESR(RE) C0 Typical Max. Max. Fundamental or 3rd overtone 5 pF 30Ω 4.5 pF 75 to 140MHz Fundamental or 3rd overtone 5 pF 60Ω 4.0 pF 140 to 200MHz Fundamental or 3rd overtone 5 pF 60Ω 4.0 pF Crystal Resonator Frequency (FXIN) Mode PL663-07 PL663-08 30 to 80MHz PL663-17 PL663-18 PL663-19 PL663-28 PL663-29 Part Number Note: Non-specified parameters can be chosen as standard values from crystal suppliers. CL ratings larger than 5pF require a crystal frequency adjustment. Request detailed crystal specifications from PhaseLink. 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 www.phaselink.com Rev. 02/18/10 Page 4 Analog Frequency Multiplier PL663-xx XO Families EXTERNAL COMPONENT VALUES INDUCTOR VALUE OPTIMIZATION The required inductor value(s) for the best performance depends on the operating frequency, and the board layout specifications. The listed values in this datasheet are based on the calculated parasitic values from PhaseLink’s evaluation board design. These inductor values provide the user with a starting point to determine the optimum inductor values. Additional fine-tuning may be required to determine the optimal solution. To assist with the inductor value optimization, PhaseLink has developed the “AFM Tuning Assistant” software. You can download this software from PhaseLink’s web site (www.phaselink.com). The software consists of two worksheets. The first worksheet (named L2) is used to fine-tune the ‘L2’ inductor value, and the second worksheet (named L4) is used for fine tuning of the ‘L4’ (used in 4x AFMs only) inductor value. For those designs using PhaseLink’s recommended board layout, you can use the “AFM Tuning Assistant” to determine the optimum values for the required inductors. This software is developed based on the parasitic information from PhaseLink’s board layout and can be used to determine the required inductor and parallel capacitor (see LWB1 and Cstray parameters) values. For those employing a different board layout in their design, we recommend to use the parasitic information of their board layout to calculate the optimized inductor values. Please use the following fine tuning procedure: Figure 5: Diagram Representation of the Related System Inductance and Capacitance DIE SIDE - Cinternal = Based on AFM Device - Cpad = 2.0 pF, Bond pad and its ESD circuitry - C11 = 0.4 pF, The following amplifier stage PCB side - LWB1 = 2 nH, (2 places), Stray inductance - Cstray = 1.0 pF, Stray capacitance - L2X = 2x inductor - C2X = range (0.1 to 2.7), Fine tune inductor if used 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 www.phaselink.com Rev. 02/18/10 Page 5 Analog Frequency Multiplier PL663-xx XO Families • There are two default variables that normally will not need to be modified. These are Cpad, and C11 and are found in cells B22 and B27 of ‘AFM Tuning Assistant’, respectively. • LWB1 is the combined stray inductance in the layout. The DIE wire bond is ~ 0.6 nH and in the case of a leaded part an additional 1.0 nH is added. Your layout inductance must be added to these. There are 2 of these and they are assumed to be approximately symmetrical so you only need to enter this inductance once in cell B23. • Enter the stray parasitic capacitance into cell B26. An additional 0.5 pF must be added to this value if a leaded part is used. • Enter the appropriate value for Cinternal into B21 based on the device used (see column D). Use the ‘AFM Tuning Assistant’ software to calculate L2X (and C2X if used) for your resonance frequency. Internal Capacitor Selection by Device Device Number Cinternal (pF) PL663-0X PL663-1X PL663-2X 2X 46.500 14.625 14.625 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 www.phaselink.com Rev. 02/18/10 Page 6 Analog Frequency Multiplier PL663-xx XO Families EXTERNAL COMPONENT VALUES – 3 RD OVERTONE RESISTOR SELECTIONS (R3rd) This resistor is only required when a third overtone crystal is used. The chart below indicates the calculated and the nearest “E12” resistor values versus frequency. PL663-07/08 PL663-17/18/19 Freq. (MHz) R3rd (C) E12 Pick KC 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 9,917 9,297 8,750 8,264 7,829 7,438 7,083 6,761 6,467 6,198 5,950 5,721 5,509 5,313 5,129 4,958 4,798 4,648 4,508 4,375 4,250 4,132 4,020 3,914 3,814 3,719 10 10 8.2 8.2 8.2 6.8 6.8 6.8 6.8 6.8 5.6 5.6 5.6 5.6 4.7 4.7 4.7 4.7 4.7 4.7 3.9 3.9 3.9 3.9 3.9 3.9 Freq. (MHz) R3rd (C) E12 Pick KC 75 77.5 80 82.5 85 87.5 90 92.5 95 97.5 100 102.5 105 107.5 110 112.5 115 117.5 120 122.5 125 127.5 130 132.5 135 137.5 140 2,125 2,056 1,992 1,932 1,875 1,821 1,771 1,723 1,678 1,635 1,594 1,555 1,518 1,483 1,449 1,417 1,386 1,356 1,328 1,301 1,275 1,250 1,226 1,203 1,181 1,159 1,138 2.2 2.2 2.2 1.8 1.8 1.8 1.8 1.8 1.8 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 PL663-28/29 Freq. (MHz) R3rd (C) E24 Pick KC 140.0 142.0 144.0 146.0 148.0 150.0 152.0 154.0 156.0 158.0 160.0 162.0 164.0 166.0 168.0 170.0 172.0 174.0 176.0 178.0 180.0 182.0 184.0 186.0 188.0 190.0 192.0 194.0 196.0 198.0 200.0 915 902 890 878 866 854 843 832 821 811 801 790 780 770 759 749 740 730 720 711 701 692 683 674 665 656 647 639 630 622 614 0.91 0.91 0.91 0.91 0.91 0.82 0.82 0.82 0.82 0.82 0.82 0.82 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.68 0.68 0.68 0.68 0.68 0.68 0.68 0.62 0.62 0.62 0.62 0.62 www.phaselink.com Rev. 02/18/10 Page 7 Analog Frequency Multiplier PL663-xx XO Families ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PARAMETERS SYMBOL Supply Voltage MIN. MAX. UNITS 4.6 V V DD Input Voltage, DC VI GND-0.5 V DD +0.5 V Output Voltage, DC VO GND-0.5 V DD +0.5 V Storage Temperature TS -55 +150 °C Industrial Ambient Operating Temperature T A_I -40 +85 °C Commercial Ambient Operating Temperature T A_C 0 +70 °C 125 °C 260 °C Junction Temperature TJ Lead Temperature (soldering, 10s) Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the device and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other conditions above the operational limits noted in this specification is not implied. *Note: For performance reasons, some pins on this device do not meet PhaseLink’s standard ESD protection. Therefore, the ESD protection on this device is classified as Class I HBM and Class A MM. Handling precaution is recommended. LVPECL ELECTRICAL CHARACTERISTICS PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Supply Current (loaded outputs) IDD Fout = 212.5 MHz, 15pF Load 58 65 75 mA Operating Supply Voltage VDD 3.63 V 55 % Output Clock Duty Cycle 2.25 @ VDD – 1.3V 45 50 Short Circuit Current mA ±50 Output High Voltage VOH Output Low Voltage VOL RL = 50 U to VDD – 2V RL = 50 U to VDD – 2V Clock Rise Time tr @20/80% Clock Fall Time tf @80/20% PECL Levels Test Circuit OUT VDD – 1.025 V VDD – 1.620 V 0.25 0.45 ns 0.25 0.45 ns PECL Transistion Time Waveform DUTY CYCLE VDD 45 - 55% 50Ω 55 - 45% 2.0V OUT 80% 50Ω 20% OUT OUT tR 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 tF www.phaselink.com Rev. 02/18/10 Page 8 Analog Frequency Multiplier PL663-xx XO Families LVDS ELECTRICAL CHARACTERISTICS PARAMETERS SYMBOL CONDITIONS MIN. Supply Current (with loaded outputs) IDD Fout = 212.5MHz, 15pF Load Operating Supply Voltage VDD @ 1.25V VDD Magnitude Change MAX. UNITS 55 60 mA 3.63 V 2.25 Output Clock Duty Cycle Output Differential Voltage TYP. 45 50 55 % VOD 247 355 454 mV ∆VOD -50 50 mV 1.6 V Output High Voltage VOH Output Low Voltage VOL Offset Voltage 1.4 RL = 100 U (see figure) 0.9 1.1 VOS 1.125 1.2 1.375 V Offset Magnitude Change ∆VOS 0 3 25 mV Power-off Leakage IOXD ±1 ±10 µA Output Short Circuit Current IOSD -5.7 -8 mA Differential Clock Rise Time tr 0.2 0.5 0.7 ns Differential Clock Fall Time tf 0.2 0.5 0.7 ns Vout = VDD or GND VDD = 0V RL = 100 U CL = 10 pF (see figure) V LVDS Transistion Time Waveform LVDS Levels Test Circuit LVDS Switching Test Circuit OUT OUT 0V (Differential) OUT CL = 10pF 50Ω VOD OUT VOS VDIFF RL = 100Ω 80% VDIFF 80% 0V 50Ω CL = 10pF OUT 20% 20% OUT tR 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 www.phaselink.com tF Rev. 02/18/10 Page 9 Analog Frequency Multiplier PL663-xx XO Families LVCMOS ELECTRICAL CHARACTERISTICS PARAMETERS SYMBOL Supply Current, Dynamic, Loaded Outputs IDD Operating Supply Voltage VDD CONDITIONS MIN. At 100MHz, load=10pF TYP. MAX. UNITS 32 40 mA 3.63 V 2.25 Output High Voltage (LVTTL) VOH3.3 IOH = -8.5mA, 3.3V Supplies Output Low Voltage (LVTTL) VOL3.3 IOL = 8.5mA, 3.3V Supplies Output High Voltage (LVCMOS) VOHC3.3 IOH = -4mA, 3.3V Supplies VDD – 0.4 V Output High Voltage VOH2.5 IOH = 1mA, 2.5V Supplies VDD – 0.2 V Output Low Voltage VOL2.5 IOL = 1mA, 2.5V Supplies Output Drive Current IOSD VOL = 0.4V, VOH = 2.4V (per output) 8.5 Output Clock Rise/Fall Time Tr/Tf 10% / 90% VDD with 10 pF load 1.2 1.6 ns 50 55 % Output Clock Duty Cycle Measured @ 50% VDD 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 2.4 V 0.4 0.2 45 www.phaselink.com V V mA Rev. 02/18/10 Page 10 Analog Frequency Multiplier PL663-xx XO Families BOARD DESIGN AND LAYOUT CONSIDERATIONS L2X: Reduce the PCB trace inductance to a minimum by placing L2X as physically close to their respective pins as possible. Also be sure to bypass each V DD connection especially taking care to place a 0.01 uF bypass at the V DD side of L2X (see recommended layout). used, feed each bypass cap with its own via. Be sure to connect any ground pin including the bypass caps with short via connection to the ground plane. OESEL: J1 is recommended so the same PCB layout can be used for both OESEL settings. Crystal Connections: Be sure to keep the ground plane under the crystal connections continuous so that the stray capacitace is consistent on both crystal connections. Also be sure to keep the crystal connections symmetrical with respect to one another and the crystal connection pins of the IC. If you chose to use a series capacitance and/or inductor to fine tune the crystal frequency, be sure to put symmetrical pads for this cap on both crystal pins (see Cadj in recommended layout), even if one of the capacitors will be a 0.01 uF and the other is used to tune the frequency. To further maintain a symmetrical balance on a crystal that may have more internal Cstray on one pin or the other, place capacitor pads (Cbal) on each crystal lead to ground (see recommended layout). R3rd is only required if a 3 rd overtone crystal is used. V DD and GND: Bypass VDDANA and VDDBUF with separate bypass capacitors and if a V DD plane is 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 PL663 (2x AFM) TSSOP Layout www.phaselink.com Rev. 02/18/10 Page 11 Analog Frequency Multiplier PL663-xx XO Families L2X GNDOSC 2 15 VDDOSC DNC 3 14 VDDANA XIN 4 13 OESEL VDDANA 14 XOUT 5 12 VDDBUF VDDOSC 15 OE 6 11 QBAR L2X 16 DNC 7 10 Q GNDANA 8 9 11 10 9 1 2 3 4 DNC XIN PL663 PL663663-XX GNDOSC GNDBUF 12 13 DNC OESEL GNDBUF 16 Q 1 PL663-XX DNC QBAR VDDBUF PACKAGE PIN DESCRIPTION AND ASSIGNMENT 8 GNDANA 7 DNC 6 OE 5 XOUT 2x AFM Package Pin Out PIN ASSIGNMENTS Name Pin # Type Description DNC 1,3,7 I Do Not Connect. GNDOSC 2 P GND connection for oscillator. XIN 4 I Input from crystal oscillator circuitry. XOUT 5 O Output from crystal oscillator circuitry. OE 6 I Output Enable input. See “OE LOGIC SELECTION TABLE”. GNDANA 8 P GND connection. GNDBUF 9 P GND connection. Q 10 O PECL/LVDS/CMOS output. QBAR 11 O Complementary PECL/LVDS output or in-phase CMOS. VDDBUF 12 P VDD connection for output buffer circuitry. VDDBUF should be separately decoupled from other VDDs whenever possible. OESEL 13 I Selector input to choose the OE control logic (see “OE SELECTION TABLE”). If no connection is applied, value will be set to default through internal pull-down resistor. VDDANA 14 P VDD connection for analog circuitry.VDDANA should be separately decoupled from other VDDs whenever possible. VDDOSC 15 P L2X 16 I VDD connection for oscillator. VDD should be separately decoupled from other VDDs whenever possible. External inductor connection. The inductor is recommended to be a high Q small size 0402 or 0603 SMD component, and must be placed between L2X and adjacent VDDOSC. Place inductor as close to the IC as possible to minimize parasitic effects and to maintain inductor Q. 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 www.phaselink.com Rev. 02/18/10 Page 12 Analog Frequency Multiplier PL663-xx XO Families PACKAGE INFORMATION 16 PIN TSSOP 16 PIN TSSOP ( mm ) Symbol A A1 B C D E H L e Min. Max. 1.20 0.05 0.15 0.19 0.30 0.09 0.20 4.90 5.10 4.30 4.50 6.40 BSC 0.45 0.75 0.65 BSC E H D A A1 C L B e 16 PIN 3x3 QFN QFN-16L Max A 0.70 0.75 0.80 A1 0.00 - 0.05 D1 DED Nom 0.203 Ref A3 b 0.20 0.25 0.30 D 2.95 3.00 3.05 E 2.95 3.00 3.05 D1 1.65 1.70 1.75 E1 1.65 1.70 1.75 L 0.250 0.300 0.350 e L Dimension (mm) Min DDD E1 Symbol e Pin1 Dot b A A3 0.50BSC SEATING PLANE 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 www.phaselink.com A1 Rev. 02/18/10 Page 13 Analog Frequency Multiplier PL663-xx XO Families ORDERING INFORMATION (GREEN PACKAGE COMPLIANT) To order parts, please contact our Sales Department: 47745 Fremont Blvd., Fremont, CA 94538, USA Tel: (510) 492-0990 Fax: (510) 492-0991 PART NUMBER The order number for this device is a combination of the following: Part number, Package type and Operating temperature range Part/Order Number PL663-XXOC PL663-XXOC-R PL663-XXQC-R Marking P663-XX OC LLLLL P663 XX LLL PL663-XXDC Package Option TSSOP – Tube TSSOP – Tape and Reel QFN – Tape and Reel Die – Waffle Pack Note: See Product Selector Guide on page 3 for specific –XX part numbers. LLLLL and LLL designates lot number PhaseLink Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information furnished by Phaselink is believed to be accurate and reliable. However, PhaseLink makes no guarantee or warranty concerning the accuracy of said information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product. LIFE SUPPORT POLICY: PhaseLink’s products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of PhaseLink Corporation. 2880 Zanker Road, San Jose, California 95134 TEL (408) 571-1668, FAX (408) 571-1688 www.phaselink.com Rev. 02/18/10 Page 14