PI49FCT3802/PI49FCT3803 1:5/1:7 Clock Buffer for Networking Applications Features Description High Frequency >156 MHz The PI49FCT380x is a 3.3V compatible, high-speed, low-noise non-inverting clock buffer. The key goal in designing the High-speed, low-noise, non-inverting buffer PI6C380x is to target networking applications that require low- - PI49FCT3802 is 1:5 buffer skew, low-jitter, and high-frequency clock distribution. Providing - PI49FCT3803 is 1:7 buffer output-to-output skew as low as 250ps, the PI49FCT380x is an Low-skew (<250ps) between any two output clocks ideal clock distribution device for synchronous systems. Designing Low duty cycle distortion <250ps synchronous networking systems requires a tight level of skew from a large number of outputs. Low propagation delay <2.5ns 5V Tolerant input Pin Description Multiple V , GND pins for noise reduction DD Pin Name 3.3V supply voltage Description 3802 3803 Packaging (Pb-free & Green available): BUF IN BUF IN Input - 16-pin TSSOP (L) CLK 0:4 CLK 0:4 Outputs - 16-pin QSOP (Q) GND GND GND V V Power DD DD Pin Configuration (PI49FCT3802) Block Diagram (PI49FCT3802) CLK0 BUF IN V 1 16 DD GND CLK4 2 15 CLK1 CLK0 14 CLK3 3 BUF IN 16-Pin V DD 4 13 GND L, Q CLK2 CLK1 CLK2 5 12 GND V 6 11 DD CLK3 NC NC 7 10 V GND DD 8 9 CLK4 Block Diagram (PI49FCT3803) Pin Configuration (PI49FCT3803) CLK0 BUF IN V 1 16 DD GND CLK6 2 15 CLK1 CLK0 CLK5 3 14 BUF IN 16-Pin V DD 4 13 GND CLK2 L, Q CLK1 CLK4 5 12 CLK3 GND V 6 11 DD CLK2 CLK3 7 10 V GND DD 8 9 CLK6 PS8559A 09/14/04 1PI49FCT3802/PI49FCT3803 1:5/1:7 Clock Buffers for Networking Applications Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Note: Storage Temperature...........................................................65C to +150C Stresses greater than those listed under MAXIMUM V Voltage ............................................................................ 0.5V to 5.5V DD RATINGS may cause permanent damage to the Output Voltage......................................................................... 0.5V to 5.5V device. This is a stress rating only and functional op- eration of the device at these or any other conditions Input Voltage ........................................................................... 0.5V to 5.5V above those indicated in the operational sections of DC Output Current............................................................60mA to +60mA this specification is not implied. Exposure to absolute Power Dissipation .............................................................................500mW maximum rating conditions for extended periods may affect reliability. Operating Range V Voltage ...............................................................................3.3V 0.3V DD Commercial Temperature.........................................................0C to +70C Industrial Temperature .........................................................40C to +85C Input Frequency ...................................................................DC to 156 MHz Capacitive Loading .................................................................. 10pF to 50pF DC Electrical Characteristics (Over the Operating Range) (1) (2) Parameters Description Test Conditions Min. Typ. Max. Units V Input HIGH Voltage Guaranteed Logic HIGH Level (Input Pins) 2.0 5.5 IH V V Input LOW Voltage Guaranteed Logic LOW Level (Input Pins) -0.5 0.8 IL I Input HIGH Current V = Max. V = V 1 IH DD IN DD A I Input LOW Current V = Max. V = GND -1 IL DD IN V Clamp Diode Voltage V = Min., I = 18mA -0.7 -1.2 IK DD IN I = 0.1mA V -0.2 OH DD V Output HIGH Voltage V = Min., V = V or V OH CC IN IH IL (3) I = 12mA 2.4 3.0 V OH I = 0.1mA 0.2 OH V Output LOW Voltage V = Min., V = V or V OL CC IN IH IL I = 12mA 0.3 0.5 OH (4) I Output HIGH Current V = 3.0V, V = V OR V , V = 1.5V -45 -75 -180 OH DD IN IH IL OUT mA (4) I Output LOWCurrent V = 3.0V, V = V OR V , V = 1.5V 50 92 200 OL DD IN IH IL OUT Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at V = 3.3V, +25C ambient and maximum loading. DD 3. V = V 0.6V at rated current. OH DD 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. PS8559A 09/14/04 2