PI6C10806 1.8V/2.5V, 250MHz, Low Skew 1:6 Crystal to LVCMOS Clock Buffer Features Description • • • • • • • • Pericom Semiconductor’s PI6C10806 is a low skew six output crystal oscillator driver. Crystal oscillator input range is from 10MHz to 40MHz. If XTAL_IN is driven with a signal source, then the input frequency can be as high as 250MHz. PI6C10806, the outputs are configured into 2 groups: a five output and a single output; each with independent output enable. PI6C10806 has a wide range of operating voltages: 1.8V and 2.5V. This feature paired with the low output-to-output and part-to-part skew makes the device ideal for low voltage, low power, high frequency single ended applications; such as networking Six low skew outputs: < 80ps Crystal oscillator input: 10MHz to 40MHz Switching frequency up to 250 MHz Fast output rise/fall time: < 800ps Synchronous output enables Industrial Temperature range: –40°C to +85°C 1.8V and 2.5V operation Packaging (Pb-free & Green available): – 16-pin 173-mil wide TSSOP (L) Block Diagram Pin Configuration XTAL_OUT 1 16 XTAL_IN ENABLE2 2 15 ENABLE1 GND 3 14 BCLK5 BCLK0 4 13 VDDO VDDO 5 12 BCLK4 BCLK1 6 11 GND GND 7 10 BCLK3 BCLK2 8 9 5 XTAL_IN BCLK[0:4] XTAL_OUT ENABLE1 Sync BCLK5 ENABLE2 Sync Truth Table(1) Pin Description Pin Name Description ENABLE1, ENABLE2 Active High Output Enable Inputs XTAL_IN Crystal interface XTAL_OUT Crystal interface BCLK[0:5] Clock Outputs GND Ground VDD Core Power VDDO Output Power 07-0112 VDD Inputs ENABLE1 ENABLE2 BCLK[0:4] BCLK5 L L L L L H L Switching H L Switching L H H Switching Switching Note: 1. 1 Outputs H = High Voltage Level, L = Low Voltage Level PS8823B 04/27/07 PI6C10806 1.8V/2.5V Low Skew 1:6 Crystal to LVCMOS Clock Buffer 2.5V Absolute Maximum Ratings (Above which the useful life may be impaired. For user guidelines only, not tested.) Storage Temperature...........................................................–65°C to +150°C VDD, VDDO Voltage ...............................................................–0.5V to +3.6V Output Voltage (max. 3.6V) .......................................... –0.5V to VDD+0.5V Input Voltage (max 3.6V) .............................................. –0.5V to VDD+0.5V Note: Stresses greater than those listed under MAXIMUM RAT INGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2.5V I/O DC Characteristics (Over Operating Range: VDD = 2.5V ± 5%, TA = -40° to 85°C) Parameters Test Conditions(1) Description Min. Typ. (2) Max. 2.375 2.5 2.625 VDDO I/O Supply Voltage VIH Input HIGH Voltage Logic HIGH level 1.7 VDD+0.3 VIL Input LOW Voltage Logic LOW level -0.3 0.7 VOH Output High Voltage VDDO = Min., VIN = VIH or VIL VOL Output LOW Voltage VDDO = Min., VIN = VIH or VIL IOH = -1mA 2 IOH = -8mA 2 IOL = 1mA 0.4 IOL = 8mA 0.4 Units V V Notes: 1. For Max. or Min. conditions, use appropriate operating range values. 2. Typical values are at VCC = 2.5V, +25°C ambient and maximum loading. 2.5V I/O AC Characteristics (Over Operating Range: VDD/VDDO = 2.5V ± 5%, TA = -40° to 85°C) Parameters Description Test Conditions(1) Min. Using Crystal 10 Typ Max. 40 Units fOUT Output Frequency tDC Output Duty Cycle @ VDDO/2 47 53 % tR/tF CLKn Rise/Fall Time 20% to 80% 150 800 ps tSK(O)(3) Output to Output Skew between any two outputs of the same device @ same transition @VDDO/2 60 ps tDIS,tEN( 4) Output Enable/Disable @VDDO/2 4 cycles (2) External Clock 0 ` 250 MHz Notes: 1. Unless noted otherwise, all parameters are tested with xtal @ f <= Fxtal_max,; outputs are terminated @ 50Ω to VDDO/2, see waveforms. 2. External clock source is driving XTAL_IN input 3. Identical conditions: loading, transitions, supply voltage, temperature, package type and speed grade. 4. These parameters are guaranteed, but not tested. Min & Max delay is 4 cycles. 07-0112 2 PS8823B 04/27/07 PI6C10806 1.8V/2.5V Low Skew 1:6 Crystal to LVCMOS Clock Buffer 1.8V Absolute Maximum Ratings (Above which the useful life may be impaired. For user guidelines only, not tested.) Storage Temperature...........................................................–65°C to +150°C VDDO,VDD Voltage................................................................–0.5V to +2.5V Output Voltage (max 2.5V) .......................................... –0.5V to VDD+0.5V Input Voltage (max 2.5V) ............................................. –0.5V to VDD+0.5V Note: Stresses greater than those listed under MAXIMUM RAT INGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 1.8V I/O DC Characteristics (Over Operating Range: TA = -40° to 85°C) Test Conditions(1) Min. Typ. (2) Max. 2.5V Core Supply 2.375 2.5 2.625 1.8V Core Supply 1.6 1.8 2.0 VDDO I/O Supply Voltage 1.6 1.8 2.0 VIH Input HIGH Voltage Logic HIGH level 0.65*VDD VDD+0.3 VIL Input LOW Voltage Logic LOW level -0.3 0.35*Vdd Input Current VDD = Max, VIN = VDD or GND I pin Output High Voltage VDD = Min., VIN = VIH or VIL Parameters Description VDD IL VOH VOL Output Low Voltage VDD = Min., VIN = VIH or VIL 15 IOH = -2mA 1.2 IOH = -8mA 1.2 IOL = 2mA 0.35 IOL = 8mA 0.35 Units V μA V Notes: 1. For Max. or Min. conditions, use appropriate operating Vdd and Ta values. 2. Typical values are at VCC = 1.8V, +25°C ambient and maximum loading. 1.8V I/O AC Characteristics (Over Operating Range: VDDO = 1.8V ± 0.2V, TA = -40° to 85°C) Parameters VDD Test Conditions(1) Description Min. Typ Max. 2.5V Core Supply 2.375 2.5 2.625 1.8V Core Supply 1.6 1.8 2.0 fOUT Output Frequency tDC Output Duty Cycle tR/tF CLKn Rise/Fall Time tSK(O)(3) Output to Output Skew between any two outputs of the same device @ same transition tDIS,tEN( 4) Output Enable/Disable Using Crystal Units V 10 40 0 180 @ VDDO/2 47 53 % 20% to 80% 150 800 ps @VDDO/2 60 ps @VDDO\/2 4 cycles (2) External Clock MHz Notes: 1. Unless noted otherwise, all parameters are tested with xtal @ f <= Fxtal_max,; outputs are terminated @ 50Ω to VDDO/2, see waveforms. 2. External clock source is driving XTAL_IN input 3. Identical conditions: loading, transitions, supply voltage, temperature, package type and speed grade. 4. These parameters are guaranteed, but not tested. Min & Max delay is 4 cycles. 07-0112 3 PS8823B 04/27/07 PI6C10806 1.8V/2.5V Low Skew 1:6 Crystal to LVCMOS Clock Buffer Phase Noise and Jitter (Over Operating Range: VDD = VDDO = 1.8V ± 0.2V, and VDD = VDDO = 2.5V ± 5%, TA = -40° to 85°C) Symbol Test Conditions(1) Description Min. Typ Max. Units tJIT Random RMS Phase Jitter 25MHz @ Integration Range 1MHz ~ 20MHz 2.5 ps PN Phase Noise Power Offset Range 1MHz ~ 20MHz -125 dBc/Hz Waveforms Output to Output Skew – tSK(O) Duty Cycle – tDC tPW VOH BCLKx VDDO VDDO/2 VDDO/2 0V VOL tSK(O) tSK(O) VOH BCLKy tPERIOD tPZL tDC = (tPW / tPERIOD ) x 100% VDDO/2 VOL ENABLE1, ENABLE2 Timing Diagram BCLK5 BCLK[0:4] ENABLE2 ENABLE1 AC Test Circuit Load [VDD - VDDO/2] [+VDDO/2] VDD Scope VDDO Z = 50-Ohm GND 50Ohm Note: VDD/VDDO = 1.8V ± 0.2V, 2.5V ± 5% [-VDDO/2] 07-0112 4 PS8823B 04/27/07 PI6C10806 1.8V/2.5V Low Skew 1:6 Crystal to LVCMOS Clock Buffer Crystal Characteristic (link to "http://www.pericom.com/saronix" for more detailed crystal specifications) Parameters Description Min Typ Max. Units 40 MHz OSCMODE Mode of Oscillation FREQ Frequency 10 ESR(1) Equivalent Series Resistance 30 200 Ohm CLOAD Load Capacitance 16 32 pF CSHUNT Shunt Capacitance 7 pF Operating Drive Level 0.5 mW Correlation Drive Level 0.1 mW DRIVE Fundamental 25 Note: 1. ESR value is dependent upon frequency of oscillation Application Notes Crystal circuit connection The following diagram shows PI6C10806 crystal circuit connection with a parallel crystal. For the CL=18pF crystal, it is suggested to use C1=18pF, C2=18pF. C1 and C2 can be adjusted to fine tune to the target ppm of crystal oscillator according to different board layouts. R1=100Ω is strongly suggested. Crystal Oscillator Circuit XTAL_IN C1 18pF Crystal (CL = 18pF) 100Ω XTAL_OUT C2 18pF 07-0112 R1 5 PS8823B 04/27/07 PI6C10806 1.8V/2.5V Low Skew 1:6 Crystal to LVCMOS Clock Buffer Package Mechanical - 16-lead TSSOP (L) 16 .169 .177 4.3 4.5 1 .193 .201 4.9 5.1 .004 .008 .047 max. 1.20 0.45 .018 0.75 .030 SEATING PLANE .0256 BSC 0.65 .007 .012 .002 .006 0.09 0.20 .252 BSC 6.4 0.05 0.15 0.19 0.30 PI6C10806 Ordering Information(1,2,3) Ordering Code PI6C10806LE Package Code Package Description L Pb-Free and Green 16-pin 173-mil TSSOP Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. E = Pb-free and Green 3. X suffix = Tape/Reel 07-0112 6 PS8823B 04/27/07 PI6C10806 1.8V/2.5V Low Skew 1:6 Crystal to LVCMOS Clock Buffer Packaging Information: HC-49 Package Marking Information Line 1: Line 2: S = SaRonix xxx = Calib/Stability/Temp Code YYWWX = Date Code Frequency (up to 7 digits, including decimal point) BT-cut = B or AT-cut Parallel = –(dash) or AT-cut Series = leave Blank xx = Load Capacitance (leave Blank if Series) Land Pattern Land Pattern SxxxYYWWX 25.0000-xx Pericom/Saronix Miniature Low Profile SMD Quartz Crystal Ordering Information 49xxx XXX – XX XXX X Type / Package 49SMLB = 2 contact, 4mm high 49SAB = 4 contact, 5 mm high 49SNC = 4 contact, 5mm high 49SUB = 6 contact, 5mm high (X) Options (T) = Tape and Reel (full increments only) 1000 pieces Blank = Bulk –E (dash E) = Lead (Pb)-free RoHS Compliant Version Blank = Standard version Frequency Frequency (in MHz) = 0x.xxxx, xx.xxxx (a zero is used in front of frequencies under 10 MHz) Calibration / Stability / Temp Range GGC = ±30ppm / ±30ppm / -20 to +70°C GHE = ±30ppm / ±50ppm / -40 to +85°C HJE = ±50ppm / ±100ppm / -40 to +85°C *others available B = BT-cut, 26.8 to 50 MHz – (dash) = AT-cut Parallel Resonance Blank = AT-cut Series Resonance Pad Connection Configurations Load Capacitance xx = Parallel Resonance (specify load) Blank = Series Resonance Examples: 25.0000MHz, ±30ppm calib, ±30ppm stability, -20 to +70°C (Commercial), 16pF 49SMLB25.0000-16GGC 49SMLB25.0000-16GGC–E (for lead-free) 25.0000MHz, ±30ppm calib, ±30ppm stability, -40 to +85°C (Industrial), 16pF 49SMLB25.0000-16GHE 49SMLB25.0000-16GHE–E (for lead-free) Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 07-0112 7 PS8823B 04/27/07