ICS671-01 Zero Delay, Low Skew Buffer and Multipler Description Features The ICS671-01 is a low phase noise, high speed PLL based, 8 output, low skew zero delay buffer and multiplier. Based on ICS’s proprietary low jitter Phase Locked Loop (PLL) techniques, the device provides eight low skew outputs at speeds up to 160 MHz at 3.3 V. The ICS671-01 includes a bank of six outputs running at either x2 or x4 mode, one output running at either x2, x4, or x5 mode, and one more output running at either x1, x2, or x4 mode. For normal operation, output clock CLK8 is tied to the FBIN pin. • Packaged in 16 pin narrow SOIC • Clock outputs from 5 to 160 MHz • Zero input-output delay • Integrated x2 or x4 selections, and x5 for CLK7 • Eight low-skew (<250 ps) outputs • Full CMOS outputs with 25 mA output drive capability at TTL levels • Tri-state mode for board-level testing • Advanced, low power, sub-micron CMOS process • 3.3 V to 5 V operating voltage ICS manufactures the largest variety of clock generators and buffers, and is the largest clock supplier in the world. Block Diagram CLK1 CLK2 CLK3 CLKIN x2, x4, or x5 PLL FBIN CLK4 CLK5 CLK6 CLK7 2 S1, S0 Control Logic CLK8 1 Revision 051700 Printed 11/15/00 Integrated Circuit Systems, Inc.• 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com MDS 671-01 B ICS671-01 Zero Delay, Low Skew Buffer and Multipler Pin Assignment ICS671-01 CLKIN CLK1 CLK2 VDD GND CLK3 CLK4 S0 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 FBIN CLK8 CLK7 VDD GND CLK6 CLK5 S1 16 pin narrow (150 mil) SOIC Output Clock Mode Select Table S1 0 0 1 1 S0 0 1 0 1 CLK1:6 CLK7 Tri-state (high impedance) Tri-state (high impedance) x2 x5 x2 x2 x4 x4 CLK8 Tri-state (high impedance) x1 x2 x4 Input range 5 to 30 MHz 15 to 80 MHz 7.5 to 40 MHz Pin Descriptions Number 1 2, 3, 6, 7, 10, 11 4, 13 5, 12 8 9 14 15 16 Name CLKIN Type I CLK1:6 VDD GND S0 S1 CLK7 CLK8 FBIN O P P I I I I I Description Clock Input. Clock Outputs 1:6. See above table. Power supply. Connect both pins to same voltage (either 3.3 V or 5 V). Connect to ground. Select input 0. See table above. Select input 1. See table above. Clock Output 7. See table above. Clock Output 8. See table above. Normally use this clock as feedback. Feedback Input. Connect to CLK8 under normal operations. Key: I = Input; O = output; P = power supply connection. External Components The ICS671-01 requires a minimum number of external components for proper operation. Decoupling capacitors of 0.01µF should be connected between VDD and GND on pins 4 and 5, and VDD and GND on pins 13 and 12, as close to the device as possible. A series termination resistor of 33 Ω may be used close to each clock output pin to reduce reflections. 2 Revision 051700 Printed 11/15/00 Integrated Circuit Systems, Inc.• 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com MDS 671-01 B ICS671-01 Zero Delay, Low Skew Buffer and Multipler Electrical Specifications Parameter Conditions Minimum Typical Maximum Units 7 VDD+0.5 V V V °C °C °C °C ABSOLUTE MAXIMUM RATINGS (n note 1) Supply voltage, VDD Inputs and Clock Outputs Electrostatic Discharge Ambient Operating Temperature Soldering Temperature Junction temperature Storage temperature Referenced to GND Referenced to GND MIL-STD-883 -0.5 -0.5 2000 0 70 260 150 150 Max of 10 seconds -65 DC CHARACTERISTICS (VDD = 3.3 V unless specified ottherwise) Operating Voltage, VDD Input High Voltage, VIH, CLKIN pin only Input Low Voltage, VIL, CLKIN pin only Input High Voltage, VIH Input Low Voltage, VIL Output High Voltage, VOH Output Low Voltage, VOL Output High Voltage, VOH, CMOS level Operating Suppl Current, IDD (Note 2) Operating Suppl Current, IDD (Note 3) Short Circuit Current Input Capacitance 3.13 VDD/2+1 5.50 VDD/2 VDD/2 VDD/2-1 2 0.8 IOH=-25mA IOL=25mA IOH=-8mA No Load, S1=1, S0=0 No Load, S1=1, S0=0 Each output S0, S1, FBIN 2.4 0.4 VDD-0.4 25 74 ±50 7 V V V V V V V V mA mA mA pF AC CHARACTERISTICS (VDD = 3.3 V unless specified oth herwise) Input Clock Frequency See table on page 2 5 80 MHz Output Clock Frequency See table on page 2 5 160 MHz Output Clock Rise Time, CL=30pF 0.8 to 2.0V 1.5 ns Output Clock Fall Time, CL=30pF 2.0 to 0.8V 1.5 ns Output Clock Duty Cycle, VDD=3.3V At VDD/2 40 50 60 % Device to Device Skew, equally loaded rising edges at VDD/2 700 ps Output to Output Skew, equally loaded rising edges at VDD/2 250 ps Input to Output Skew, FBIN to CLK8 rising edges at VDD/2 ±350 ps Maximum Absolute Jitter 300 ps Cycle to Cycle Jitter, 30pF loads 500 ps Notes: 1. Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage to the device. Prolonged exposure to levels above the operating limits but below the Absolute Maximums may affect device reliability. 2. With CLKIN = 20 MHz, FBIN to CLK8, all outputs at 40 MHz. 3. With CLKIN = 80 MHz, FBIN to CLK8, all outputs at 160 MHz. 3 Revision 051700 Printed 11/15/00 Integrated Circuit Systems, Inc.• 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com MDS 671-01 B ICS671-01 Zero Delay, Low Skew Buffer and Multipler Package Outline and Package Dimensions (For current dimensional specifications, see JEDEC Publication No. 95.) 16 pin SOIC narrow Symbol A A1 E H B C INDEX AREA 1 D E e H h L 2 h x 45° D A1 e B C Inch hes Min Max 0.0532 0.0688 0.0040 0.0098 0.0130 0.0200 0.0075 0.0098 0.3859 0.3937 0.1497 0.1574 .050 BSSC 0.2284 0.2440 0.0099 0.0195 0.0160 0.0500 Millim meters Min Max 1.35 1.75 0.10 0.24 0.33 0.51 0.19 0.24 9.80 10.00 3.80 4.00 1.27 BSSC 5.80 6.20 0.25 0.50 0.41 1.27 A L Ordering Information Part/Order Number ICS671M-01 ICS671M-01T Marking ICS671M-01 ICS671M-01 Shipping packaging tubes tape and reel Package 16 pin SOIC 16 pin SOIC Temperature 0-70 °C 0-70 °C While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or critical medical instruments. 4 Revision 051700 Printed 11/15/00 Integrated Circuit Systems, Inc.• 525 Race Street • San Jose •CA•95126• (408) 295-9800 tel • www.icst.com MDS 671-01 B