211BI03L

ICS85211BI-03 ICST | Alldatasheet

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www.icst.com/products/hiperclocks.html REV. B NOVEMBER 15, 2005 Integrated Circuit Systems, Inc. ICS85211BI-03 LOW SKEW, 1-TO-2 DIFFERENTIAL-TO-LVHSTL FANOUT BUFFER BLOCK DIAGRAM PIN ASSIGNMENT GENERAL DESCRIPTION The ICS85211BI-03 is a low skew, high perfor- mance 1-to-2 Differential-to-LVHSTL Fanout Buffer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The CLK, nCLK pair can accept most standard differential input levels.The ICS85211BI-03 is char- acterized to operate from a 3.3V power supply. Guar- anteed output and part-to-part skew characteristics make the ICS85211BI-03 ideal for those clock distribu- tion applications demanding well defined performance and repeatability.

FEATURES

• Two differential LVHSTL compatible outputs
• One differential CLK, nCLK input pair
• CLK, nCLK pair can accept the following differential input levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL
• Maximum output frequency: 700MHz
• Translates any single-ended input signal to LVHSTL levels with resistor bias on nCLK input
• Output skew: 30ps (maximum)
• Part-to-part skew: 250ps (maximum)
• Propagation delay: 1.3ns (maximum)
• Output duty cycle: 49% - 51% up to 266.6MHz
• VOH = 1.15V (maximum)
• 3.3V operating supply
• -40°C to 85°C ambient operating temperature
• Available in both standard and lead-free RoHS-compliant packages HiPerClockS™ ICS ICS85211BI-03 8-Lead SOIC 3.90mm x 4.90mm x 1.37mm package body M Package Top View nQ0 nQ1 VDD CLK nCLK GND nQ0 nQ1 CLK nCLK

TABLE 1. PIN DESCRIPTIONS TABLE 2. PIN CHARACTERISTICS TABLE 3. CLOCK INPUT FUNCTION TABLE

www.icst.com/products/hiperclocks.html REV. B NOVEMBER 15, 2005 Integrated Circuit Systems, Inc. ICS85211BI-03 LOW SKEW, 1-TO-2 DIFFERENTIAL-TO-LVHSTL FANOUT BUFFER TABLE 4B. DIFFERENTIAL DC CHARACTERISTICS, VDD = 3.3V ± 5%, TA = -40°C TO 85°C l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U V D D e g a tlo V ylp p u S r e w o P V I D D t n e rr u C ylp p u S r e w o P A m l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U I H I t n e rr u C h gi H t u p n I K L C n V D D V N I V A µ K L C V D D V N I V A µ I L I t n e rr u C w o L t u p n I K L C n V D D V V N I V A µ K L C V D D V V N I V A µ V P P e g a tlo V t u p n I k a e P o k a e P V V R M C e g a tlo V t u p n I e d o M n o m m o C E T O N V D D V V si K L C n d n a K L C r o f e g a tlo v t u p ni m u m ix a m e h t s n oit a cilp p a d e d n e elg nis r o F E T O N D D V V s a d e nif e d si e g a tlo v e d o m n o m m o C E T O N H I . TABLE 4C. LVHSTL DC CHARACTERISTICS, VDD = 3.3V ± 5%, TA = -40°C TO 85°C l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U V H O e g a tlo V h gi H t u p t u O V V L O e g a tlo V w o L t u p t u O V V G N I W S g ni w S e g a tlo V t u p t u O k a e P o k a e P V TABLE 4A. POWER SUPPLY DC CHARACTERISTICS, VDD = 3.3V ± 5%, TA = -40°C TO 85°C NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only. Functional operation of product at these conditions or any conditions be- yond those listed in the DC Characteristics or AC Character- istics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. ABSOLUTE MAXIMUM RATINGS Supply Voltage, VDD 4.6V Inputs, VI -0.5V to VDD + 0.5 V Outputs, IO Continuous Current 50mA Surge Current 100mA Package Thermal Impedance, θJA 112.7°C/W (0 lfpm) Storage Temperature, TSTG -65°C to 150°C

TABLE 5. AC CHARACTERISTICS, VDD = 3.3V ± 5%, TA = -40°C TO 85°C

www.icst.com/products/hiperclocks.html REV. B NOVEMBER 15, 2005 Integrated Circuit Systems, Inc. ICS85211BI-03 LOW SKEW, 1-TO-2 DIFFERENTIAL-TO-LVHSTL FANOUT BUFFER Clock Outputs 20% 80% 80% 20% tR tF VSWING tPW tPERIOD tPW tPERIOD odc = x 100% nQ0, nQ1 Q0, Q1 tPD nCLK CLK nQ0, nQ1 Q0, Q1 Qx nQx Qy nQy PART 1 PART 2 tsk(pp) 3.3V OUTPUT LOAD AC TEST CIRCUIT DIFFERENTIAL INPUT LEVEL PART-TO-PART SKEW OUTPUT SKEW OUTPUT DUTY CYCLE/PULSE WIDTH PERIOD OUTPUT RISE/FALL TIME PROPAGATION DELAY PARAMETER MEASUREMENT INFORMATION tsk(o) nQx Qx nQy Qy V CMR Cross Points V PP nCLK CLK GND VDD SCOPE LVHSTL Qx nQx 3.3V±5% GND VDD

This section provides information on power dissipation and junction temperature for the ICS85211BI-03. Equations and example calculations are also provided. The total power dissipation for the ICS85211BI-03 is the sum of the core power plus the power dissipated in the load(s). The following is the power dissipation for VDD = 3.3V + 5% = 3.465V, which gives worst case results. NOTE: Please refer to Section 3 for details on calculating power dissipated in the load. device. The maximum recommended junction temperature for HiPerClockSTM devices is 125°C. moderate air flow of 200 linear feet per minute and a multi-layer board, the appropriate value is 103.3°C/W per Table 6 below. and the type of board (single layer or multi-layer). NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs. TABLE 6. THERMAL RESISTANCE θθθθθJA FOR 8-PIN SOIC, FORCED CONVECTION

1. Calculations and Equations.

The purpose of this section is to derive the power dissipated into the load. LVHSTL output driver circuit and termination are shown in Figure 4. To calculate worst case power dissipation into the load, use the following equations which assume a 50Ω load. Pd_H is power dissipation when the output drives high. Pd_L is the power dissipation when the output drives low. FIGURE 4. LVHSTL DRIVER CIRCUIT AND TERMINATION

TABLE 7. θJAVS. AIR FLOW TABLE FOR 8 LEAD SOIC NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.

TABLE 8. PACKAGE DIMENSIONS

TABLE 9. ORDERING INFORMATION for use in life support devices or critical medical instruments. The aforementioned trademark, HiPerClockS is a trademark of Integrated Circuit Systems, Inc. or its subsidiaries in the United States and/or other countries.

www.icst.com/products/hiperclocks.html REV. B NOVEMBER 15, 2005 Integrated Circuit Systems, Inc. ICS85211BI-03 LOW SKEW, 1-TO-2 DIFFERENTIAL-TO-LVHSTL FANOUT BUFFER T E E H S Y R O T S I H N O I S I V E R v e R e l b a T e g a P e g n a h C f o n o it p ir c s e D e t a D B A T I d e g n a h c elb a T ylp p u S r e w o P D D A m o t A m m o rf.x a m tc elf e r o t A m o t A m m o rf ti m il D D I e h t d e g n a h c s n oit a r e dis n o C r e w o P alu m r o f e r u t a r e p m e T n oitc n u J d n a n oit a pis si D r e w o P d e t alu cla c e R A elb a T B T ellu b e e r F d a e L d d a n oitc e S s e r u t a e F n oitc e s e c a fr e t n I t u p n I k c ol C lait n e r e ffi D d e t a d p U elb a t n oit a m r o f n I g nir e d r O o t r e b m u n tr a p e e r F d a e L d e d d A B T N L o t F L m o rf N P e e r F d a e L d e tc e rr o c elb a T n oit a m r o f n I g nir e d r O B T I M B d a e r o t g nik r a m d e tc e rr o c elb a T n oit a m r o f n I g nir e d r O B T d e d d A ni P t u p t u O d n a t u p n I d e s u n U r o f s n oit a d n e m m o c e R n oit alu cla c n oit a pis si D r e w o P n oit a r e dis n o C r e w o P d e tc e rr o C e t o n e e rf- d a el d e d d a elb a T n oit a m r o f n I g nir e d r O