PI49FCT3807D 1-10 Clock Buffer for Networking Applications Features Description • Maximum Frequency up to 156 MHz The PI49FCT3807D is a 3.3V high-speed, low-noise 1-10 non-inverting clock buffer. The key goal in designing the PI49FCT3807D is to target networking applications that require low-skew, low-jitter, and high-frequency clock distribution. • High-speed, low-noise, non-inverting 1-10 buffer • Low-skew (<250ps) between any two output clocks • Low duty cycle distortion <250ps Providing output-to-output skew as low as 250ps, the PI49FCT3807D 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. • Low propagation delay <2.5ns • Multiple VDD, GND pins for noise reduction • 3.3V supply voltage with 5V input tolerant • Packages (Pb-free & Green Available): -20-pin 300-mil wide SOIC (S) -20-pin 209-mil wide SSOP (H) -20-pin 150-mil wide QSOP (Q) Block Diagram Pin Configuration CLK0 CLK1 BUF_IN CLK2 CLK3 CLK9 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 Pin Description Pin Name BUF_IN CLK [0:9] GND VDD 08-0002 1 Description Input Outputs Ground Power PS8493D 01/08/08 PI49FCT3807D 1-10 Clock Buffer for Networking Applications Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature...........................................................–65°C to +150°C VDD Voltage ..........................................................................–0.5V to +4.6V Output Voltage............................................................... –0.5V to VDD+0.5V Input Voltage .........................................................................–0.5V to +5.5V 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. Operating Range VDD Voltage ............................................................................... 3.3V ± 0.3V Industrial Temperature ......................................................–40°C to +105°C Input Frequency.................................................................... DC to 156 MHz DC Electrical Characteristics (Over the Operating Range) Parameters Description Test Conditions(1) Min. Typ. (2) Max. VIH Input HIGH Voltage Guaranteed Logic HIGH level (Input Pins) 2.0 5.5 VIL Input LOW Voltage Guaranteed Logic LOW level (Input Pins) -0.5 0.8 IIH Input HIGH Current VDD = Max VIN = 5.5V 1 IIL Input LOW Current VDD = Max VIN = GND 1 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 IODH IODL Output HIGH Current Output LOW Current -0.7 IOH = 0.1mA VDD-0.2 IOH = -12mA 2.4(3) VDD = 3.3V, VIN = VIH or VIL, VOUT = (4, 5) VDD = 3.3V, VIN = VIH or VIL, VOUT = 1.5V μA V 0.2 IOL = 12mA 1.5V(4, 5) V -1.2 3.0 IOL = 0.1mA Units 0.3 0.5 -45 -75 -180 50 80 200 mA 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 = 3.3V, +25°C ambient and maximum loading. 3. VOH = VDD – 0.6V at rated current. 4. This parameter is determined by device characterization but is not production tested. 5. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 08-0002 2 PS8493D 01/08/08 PI49FCT3807D 1-10 Clock Buffer for Networking Applications Power Supply Characteristics Parameters IDDQ Test Conditions(1) Description Quiescent Power Supply Current ∆IDD Typ. (2) Max. VDD = Max. VIN = GND or VDD 0.1 30 Supply Current per Inputs @ TTL HIGH VDD = Max. 0.6V(3) 47 300 50 MHz 43 55 67 MHz 56 70 80 MHz 66 85 100 MHz 81 105 125 MHz 97 125 156 MHz 121 155 VIN = VDD - VDD = 3.6V, No Load Dynamic Supply Current ID Min. 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 = 3.3V, +25°C ambient. 3. Per TTL driven input (VIN = VDD – 0.6V); all other inputs at VDD or GND. Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) Description Test Conditions Typ Max. CIN Input Capacitance VIN = 0V 3.0 4 COUT Output Capacitance VOUT = 0V — 6 Units pF Note: 1. This parameter is determined by device characterization but is not production tested. Test Circuits for All Outputs VDD VOUT VIN Pulse Generator D.U.T. CL 15pF Definitions: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance, should be equal to Zout of the Pulse Generator. 08-0002 3 PS8493D 01/08/08 PI49FCT3807D 1-10 Clock Buffer for Networking Applications Switching Characteristics (VDD = 3.3V ± 0.3V, TA = 85°C) Parameters Test Conditions(1) Description tR/tF CLKn Rise/Fall Time 0.8V ~ 2.0V tPLH tPHL Propagation Delay BUF_IN to CLKn tSK(o)(3) Skew between two outputs of the same package (same transition) tSK(p)(3) Skew bewteen opposite transitions (tPHL-tPLH) of the same output tSK(o)(3) Skew between two outputs of different package(4) Min. 1.0 CL = 15pF, 125 MHz Typ Max. 0.8 1.0 2.2 2.5 110 250 200 250 Units ns ps 550 Notes: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew measured at worse cast temperature (max. temp). 4. Identical conditions: loading, transitions, supply voltage, temperature, package type and speed grade. Switching Characteristics (VDD = 3.3V ± 0.3V, TA = 105°C) Parameters Test Conditions(1) Description tR/tF CLKn Rise/Fall Time 0.8V ~ 2.0V tPLH tPHL Propagation Delay BUF_IN to CLKn tSK(o)(3) Skew between two outputs of the same package (same transition) tSK(p)(3) Skew bewteen opposite transitions (tPHL-tPLH) of the same output tSK(o)(3) Skew between two outputs of different package(4) Min. 1.0 CL = 15pF, 125 MHz Typ Max. 0.8 1.0 2.8 3.0 110 250 200 250 Units ns ps 550 Notes: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew measured at worse cast temperature (max. temp). 4. Identical conditions: loading, transitions, supply voltage, temperature, package type and speed grade. 08-0002 4 PS8493D 01/08/08 PI49FCT3807D 1-10 Clock Buffer for Networking Applications Switching Waveforms Pulse Skew – tSK(P) Propagation Delay 3V 3V Input Input 1.5V 0V 0V tPLH tPHL tPLH 1.5V tPHL VOH VOH 2.0V Output Output 1.5V 1.5V 0.8V VOL VOL tR tF Output Skew – tSK(O) Package Skew – tSK(T) 3V Input 3V 1.5V Input 0V tPLHx 1.5V 0V tPHLx tPLH1 VOH CLKx VOH 1.5V Package 1 Output VOL tSK(o) 1.5V VOL tSK(o) tSK(t) VOH CLKy Package 2 Output VOL 1.5V VOL tPHLy tPLH2 08-0002 tSK(t) VOH 1.5V tPLHy tPHL1 5 tPHL2 PS8493D 01/08/08 PI49FCT3807D 1-10 Clock Buffer for Networking Applications Packaging Mechanical: 20-Pin SOIC (S) 20 .2914 7.40 .2992 7.60 .010 .029 0.254 x 45˚ 0.737 1 .496 12.60 .511 12.99 0-8˚ 0.23 0.32 .007 .010 0.178 0.254 0.41 .016 1.27 .050 .020 0.508 REF .030 0.762 .0926 2.35 .1043 2.65 .394 .419 10.00 10.65 SEATING PLANE .050 BSC 1.27 .0091 .0125 .0040 .0118 .013 .020 0.33 0.51 0.10 0.30 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS Packaging Mechanical: 20-Pin QSOP (Q) 20 .008 0.20 MIN. .150 .157 .008 .013 0.20 0.33 3.81 3.99 Guage Plane .010 0.254 1 Detail A .337 8.56 .344 8.74 .058 REF 1.47 .041 1.04 REF .015 x 45˚ 0.38 .053 1.35 .069 1.75 Detail A SEATING PLANE .016 .050 .025 BSC 0.635 0˚-6˚ .016 .035 0.41 0.89 .004 0.101 .010 0.254 0.41 1.27 .228 .244 5.79 6.19 .008 0.203 .012 0.305 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 08-0002 6 PS8493D 01/08/08 PI49FCT3807D 1-10 Clock Buffer for Networking Applications Packaging Mechanical: 20-Pin SSOP (H) 20 .197 .220 5.00 5.60 1 .004 .009 .272 .295 6.90 7.50 0.55 .022 0.95 .037 .078 2.00 Max .291 .322 7.40 8.20 SEATING PLANE .0256 BSC 0.65 0.09 0.25 .002 Min 0.050 .0098 Max. 0.25 Ordering Information Ordering Code Package Code Package Type PI49FCT3807DS S 20-pin 300-mil wide SOIC PI49FCT3807DSE S Pb-free & Green, 20-pin 300-mil wide SOIC PI49FCT3807DQ Q 20-pin 150-mil wide QSOP PI49FCT3807DQE Q Pb-free & Green, 20-pin 150-mil wide QSOP PI49FCT3807DH H 20-pin 20-mil wide SSOP PI49FCT3807DHE H Pb-free & Green, 20-pin 209-mil wide SSOP Notes: 1. Thermal Characteristics can be found on the web at www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 08-0002 7 PS8493D 01/08/08