PI49FCT20807 1-10 Clock Buffer for Networking Applications Features Description • High Frequency >150 MHz The PI49FCT20807, a 2.5V compatible, high-speed, low-noise 1-10 non-inverting clock buffer, is designed to target networking applications that require low-skew, low-jitter, and high-frequency clock distribution. Providing output-to-output skew as low as 150ps, the PI49FCT20807 is an ideal clock distribution device for synchronous systems. Designing synchronous networking systems requires a tight level of skew from a large number of outputs. • High-speed, low-noise, non-inverting 1-10 buffer • Low-skew (<150ps) between any two output clocks • Low duty cycle distortion <300ps • Low propagation delay <3.5ns • Multiple VDD, GND pins for noise reduction • 2.5V supply voltage and 3V tolerant input • Packaging (Pb-free & Green available): -20-pin SSOP (H) -20-pin QSOP (Q) Pin Description Pin Name Block Diagram Description BUF_IN Input CLK [0:9] Outputs GND Ground VDD Power Pin Configuration CLK0 CLK1 BUF_IN CLK2 CLK3 CLK9 1 BUF_IN 1 20 VDD GND 2 19 CLK9 CLK0 3 18 CLK8 VDD 4 17 GND CLK1 5 16 CLK7 GND 6 15 VDD CLK2 7 14 CLK6 VDD 8 13 GND CLK3 9 12 CLK5 GND 10 11 CLK4 20-Pin H, Q www.pericom.com09/25/14 PI49FCT20807 1-10 Clock Buffer for Networking Applications Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Note: Storage Temperature.......................................... –65°C to +150°C Stresses greater than those listed under MAXIMUM VDD Voltage..............................................................–0.5V to +3.6V RATINGS may cause permanent damage to the deInput/Output Voltage(4)....................................... –0.5V to VDD+0.5V vice. This is a stress rating only and functional operation of the device at these or any other conditions DC Output Current.............................................. –60mA to +60mA above those indicated in the operational sections of Power Dissipation.............................................................. 500mW this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may Operating Range affect reliability. VIN Voltage.................................................................–0.3V to 3.6V VDD Voltage...................................................................2.5V ± 0.2V Industrial Temperature.......................................... –40°C to +85°C Input Frequency..................................................... DC to 150 MHz Capacitive Loading................................................... 10pF to 25pF DC Electrical Characteristics (Over the Operating Range) Test Conditions(1) Parameters Description Min. VIH Input HIGH Voltage Guaranteed Logic HIGH Level (Input Pins) VIL Input LOW Voltage Guaranteed Logic LOW Level (Input Pins) II Input Current VDD = Max., VIN = VDD or GND VIK Clamp Diode Voltage VDD = Min., IIN = –18mA VOH Output HIGH Voltage VDD = Min., VIN = VIH or VIL VOL Output LOW Voltage VDD = Min., VIN = VIH or VIL VIN = VDD Typ.(2) 1.7 Max. — — 0.7 — — ±1 — –0.7 –1 — IOH = –1mA 2 IOH = –8mA 1.8(3) IOL = 1mA — IOL = 8mA — — — — Units V mA V 0.4 0.6 Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VDD = 2.5V, +25°C ambient and maximum loading. 3.VOH = VDD – 0.6V at rated current. 4. This value is limited to 3.6V maximum. Power Supply Characteristics Test Conditions (1) Min. Typ.(2) Max. VIN = GND or VDD — 0.1 20 VDD = Max. VIN = VDD – 0.6V(3) — 47 300 VDD = 2.7V, 15pF & 33-ohm load 150 MHz — 136 — Parameters Description IDDQ Quiescent Power Supply Current VDD = Max. ∆IDD Supply Current per Inputs @ TTL HIGH IDD Dynamic Supply Current (See Graph 1) Units µA mA Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VDD = 2.5V, +25°C ambient. 3. Per TTL driven input (VIN = VDD – 0.6V); all other inputs at VDD or GND. 2 www.pericom.com09/25/14 PI49FCT20807 1-10 Clock Buffer for Networking Applications Dynamic Current - IDD [mA] Graph 1. Dynamic Current vs. Clock Frequency 160 140 120 100 Load = 15pF & 33 ohms 80 60 Load = 0 40 20 0 0 50 100 150 200 Clock Frequency [MHz] Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) Description CIN Input Capacitance COUT Output Capacitance Test Conditions Typ. Max. Units VIN = 0V 3 4 pF VOUT = 0V 6 Note: 1. This parameter is determined by device characterization but is not production tested. Switching Characteristics (VDD = 2.5V ± 0.2V, TA = 85°C) Parameters tR/tF tPLH tPHL Description CLKn Rise/Fall Time 0.7V ~ 1.7 V Propagation Delay BUF_IN to CLKn Test Conditions(1) Min. Typ. Max. C L = 22pF, 100 MHz – 1.0 1.25 C L = 12pF, 150 MHz – 1.0 1.2 C L = 22pF, 100 MHz – 3.0 3.5 C L = 12pF, 150 MHz – 2.4 2.7 tSK(o)(2) Skew between two outputs of the same package (same transition) C L = 22pF, 100 MHz – 100 150 C L = 12pF, 150 MHz – 100 150 tSK(p)(2) Skew between opposite transitions (tPHL-tPLH) of the same output C L = 22pF, 100 MHz – 250 300 C L = 12pF, 150 MHz – 250 300 C L = 12pF, 150 MHz – 400 600 tSK(t)(2) Skew between two outputs of different package (4) Units ns ps Notes: 1. See test circuit and waveforms. 2. Skew measured at worse cast temperature (max. temp). Test Circuits for All Outputs VDD Pulse Generator VOUT VIN D.U.T. CL Definitions: CL =Load capacitance: includes jig and probe capacitance. 3 www.pericom.com09/25/14 PI49FCT20807 1-10 Clock Buffer for Networking Applications Switching Waveforms Propagation Delay Pulse Skew – tSK(P) 2.5V 2.5V Input Input 1.25V tPLH tPHL 0V tPHL tPLH VOH 1.7V Output 1.25V Output 1.25V tF VOL VOL tSK(p) = | tPHL – tPLH | Output Skew – tSK(O) Package Skew – tSK(T) 2.5V 2.5V Input Input 1.25V 0V tPHLx tPLHx CLKy VOL tPHLy VOH 1.25V tSK(t) VOH tSK(t) Package 2 Output 1.25V tPLHy 0V tPHL1 Package 1 Output 1.25V tSK(o) 1.25V tPLH1 VOH CLKx tSK(o) VOH 1.25V 0.7V tR 0V VOL VOL VOH 1.25V tPLH2 tPHL2 VOL tSK(t) = ú tPLH2 – tPLH1 ú or ú tPHL2 – tPHL1 ú tSK(o) = ú tPLHy – tPLHx ú or ú tPHLy – tPHLx ú 4 www.pericom.com09/25/14 PI49FCT20807 1-10 Clock Buffer for Networking Applications Packaging Mechanical: 20-Pin SSOP (H) 1 DATE: 10/31/13 DESCRIPTION: 20-Pin, 209-Mil Wide, SSOP PACKAGE CODE: H20 DOCUMENT CONTROL #: PD-1240 REVISION: F 13-0214 5 www.pericom.com09/25/14 PI49FCT20807 1-10 Clock Buffer for Networking Applications Packaging Mechanical: 20-Pin QSOP (Q) DOCUMENT CONTROL NO. PD - 1202 20 REVISION: H .008 0.20 MIN. .150 .157 3.81 3.99 Guage Plane .010 0.254 1 .041 1.04 REF .053 .069 .015 x 45˚ 0.38 1.35 1.75 Detail A 1 SEATING PLANE .025 BSC 0.635 0˚-6˚ .016 .035 0.41 0.89 Detail A .337 8.56 .344 8.74 .058 REF 1.47 DATE: 10/22/07 .008 .013 0.20 0.33 .008 0.203 .012 0.305 .004 0.101 .010 0.254 .007 .010 0.178 0.254 .228 .244 5.79 6.19 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com Note: 1) Controlling dimensions in inches. 2) Ref: JEDEC MO-137B/AD 3) Dimensions do not include mold flash, protrusions or gate burrs DESCRIPTION: 20-Pin, 150-Mil Wide, QSOP PACKAGE CODE: Q Note: For latest package info, please check: http://www.pericom.com/support/packaging/packaging-mechanicals-and-thermal-characteristics/ Ordering Information Ordering Number Package Code Package Description PI49FCT20807QE Q 20-Pin, 150-Mil Wide (QSOP) PI49FCT20807HE H 20-Pin, 209-Mil Wide (SSOP) Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • E = Pb-free and Green • X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 6 www.pericom.com09/25/14