EL57, EL57 Data Sheet FN77.6 5MHz Differential Twisted-Pair Drivers The EL57 and EL57 are single and triple bandwidth amplifiers with an output in differential form. They are primarily targeted for applications such as driving twistedpair lines in component video applications. The input signal is single-ended and the outputs are always differential. On the EL57 and EL57, two feedback inputs provide the user with the ability to set the gain of each device (stable at minimum gain of one). For a fixed gain of two, please see EL57 and EL57. The output common mode level for each channel is set by the associated V pin, which have a -db bandwidth of over 5MHz. Generally, these pins are grounded but can be tied to any voltage reference. All outputs are short circuit protected to withstand temporary overload condition. The EL57 and EL57 are specified for operation over the full -4 C to +85 C temperature range. Ordering Information PART NUMBER PART MARKING TAPE & REEL PACKAGE PKG. DWG. # EL57IS 57IS - 8 Ld SO MDP7 EL57IS-T7 57IS 7 8 Ld SO MDP7 EL57IS-T 57IS 8 Ld SO MDP7 EL57ISZ (See Note) EL57ISZ-T7 (See Note) EL57ISZ-T (See Note) 57ISZ - 8 Ld SO (Pb-free) 57ISZ 7 8 Ld SO (Pb-free) 57ISZ 8 Ld SO (Pb-free) MDP7 MDP7 MDP7 EL57IU 57IU - 8 Ld QSOP MDP4 EL57IU-T7 57IU 7 8 Ld QSOP MDP4 EL57IU-T 57IU 8 Ld QSOP MDP4 EL57IUZ (See Note) EL57IUZ-T7 (See Note) EL57IUZ-T (See Note) 57IUZ - 8 Ld QSOP (Pb-free) 57IUZ 7 8 Ld QSOP (Pb-free) 57IUZ 8 Ld QSOP (Pb-free) MDP4 MDP4 MDP4 NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and % matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-. Features Fully differential outputs and feedback Input range ±.V typ. 5MHz db bandwidth 8V/µs slew rate Low distortion at 5MHz Single 5V or dual ±5V supplies 9mA maximum output current Low power - 8mA per channel Pb-free plus anneal available (RoHS compliant) Applications Twisted-pair driver Differential line driver VGA over twisted-pair ADSL/HDSL driver Single ended to differential amplification Transmission of analog signals in a noisy environment Pinouts FBP IN+ FBN 4 EL57 (8 LD SO) TOP VIEW + - 8 7 6 5 OUT+ VS+ VS- OUT- NC INP INN NC INP INN 4 5 6 7 INP INN NC EL57 (8 LD QSOP) TOP VIEW + - + - 8 OUT 7 FBP 6 FBN 5 OUTB 4 VSP VSN OUT 8 + FBP NC 9 - FBN 9 OUTB 8 OUT 7 FBP 6 FBN EN 4 5 OUTB CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. -888-INTERSIL or -888-468-774 Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 4-6. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
EL57, EL57 Absolute Maximum Ratings (T A = +5 C) Supply Voltage (V S + to V S -)............................V Maximum Output Current............................ ±6mA Storage Temperature Range..................-65 C to +5 C Operating Junction Temperature...................... +5 C Ambient Operating Temperature................-4 C to +85 C CAUTION: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: T J = T C = T A Electrical Specifications V S + = +5V, V S - = -5V, T A = 5 C, V IN = V, R LD = kω, =, R G = OPEN, C LD =.7pF, Unless Otherwise Specified PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT AC PERFORMANCE BW -db Bandwidth A V =, C LD =.7pF 5 MHz A V =, = 5, C LD =.7pF 6 MHz A V =, = 5, C LD =.7pF MHz BW ±.db Bandwidth A V =, C LD =.7pF 5 MHz SR Slew Rate (EL57) V OUT = V P-P, % to 8% 6 8 V/µs Slew Rate (EL57) V OUT = V P-P, % to 8% 54 7 V/µs T STL Settling Time to.% V OUT = V P-P ns T OVR Output Overdrive Recovery Time ns GBWP Gain Bandwidth Product MHz V BW (-db) V -db Bandwidth A V =, C LD =.7pF 5 MHz V SR+ V Slew Rate - Rise V OUT = V P-P, % to 8% 9 V/µs V SR- V Slew Rate - Fall V OUT = V P-P, % to 8% 5 V/µs V N Input Voltage Noise at khz 6 nv/ Hz I N Input Current Noise at khz pa/ Hz HD Second Harmonic Distortion V OUT = V P-P, 5MHz -94 dbc V OUT = V P-P, MHz -94 dbc HD Third Harmonic Distortion V OUT = V P-P, 5MHz -77 dbc V OUT = V P-P, MHz -75 dbc dg Differential Gain at.58mhz R L = Ω, A V =. % dθ Differential Phase at.58mhz R L = Ω, A V =.5 e S Channel Separation at f = MHz 9 db INPUT CHARACTERISTICS V OS Input Referred Offset Voltage ±.5 ±5 mv I IN Input Bias Current (V IN +, V IN -) -4-6 - µa I Input Bias Current (V ).5. 4 µa R IN Differential Input Resistance kω C IN Differential Input Capacitance pf DMIR Differential Mode Input Range ±. ±. ±.5 V CMIR+ Common Mode Positive Input Range at V IN +, V IN - Tested only for EL57..4 V CMIR- Common Mode Negative Input Range at V IN +, V IN - Tested only for EL57-4.5-4. V V IN + Positive Reference Input Voltage Range (EL57) V IN + = V IN - = V.5 ±.8 V FN77.6
EL57, EL57 Electrical Specifications V S + = +5V, V S - = -5V, T A = 5 C, V IN = V, R LD = kω, =, R G = OPEN, C LD =.7pF, Unless Otherwise Specified (Continued) PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT V IN - Negative Reference Input Voltage Range (EL57) V IN + = V IN - = V -. - V V OS Output Offset Relative to V (EL57) ±6 ± mv CMRR Input Common Mode Rejection Ratio (EL57) V IN = ±.5V 7 8 db Gain Gain Accuracy V IN = (EL57).98.996. V V IN = (EL57).978.99.8 V OUTPUT CHARACTERISTICS V OUT Output Voltage Swing R L = 5Ω to GND (EL57) ±.4 V R L = 5Ω to GND (EL57) ±.6 ±.9 V I OUT (Max) Maximum Output Current R L = Ω, V IN = ±.4 (EL57) ±7 ±9 ± ma R L = Ω, V IN = ±.4 (EL57) ±5 ±7 ±9 ma R OUT Output Impedance mω SUPPLY V SUPPLY Supply Operating Range V S + to V S - 4.75 V I S(ON) Power Supply Current - Per Channel 6.8 7.5 8. ma I S(OFF) + Positive Power Supply Current - Disabled (EL57) EN pin tied to 4.8V.7 µa I S(OFF) - Negative Power Supply Current - Disabled (EL57) - - µa PSRR Power Supply Rejection Ratio V S from ±4.5V to ±5.5V (EL57) 7 84 db V S from ±4.5V to ±5.5V (EL57) 65 8 db ENABLE (EL57 ONLY) t EN Enable Time 5 ns t DS Disable Time.95 µs V IH EN Pin Voltage for Power-Up V S + -.5 V IL EN Pin Voltage for Shut-Down V S + -.5 V V I IH-EN EN Pin Input Current High At V EN = 5V µa I IL-EN EN Pin Input Current Low At V EN = V - -8 µa Pin Descriptions EL57 EL57 PIN NAME PIN FUNCTION 7,, 7 FBP,, Feedback from non-inverting output, 6, INP,, Non-inverting inputs, 7, INN,, Inverting inputs, note that on EL57, this pin is also the pin 4 6,, 6 FBN,, Feedback from inverting output 5 5, 9, 5 OUTB, B, B Inverting outputs 6 4 VSP Positive supply 7 VSN Negative supply 8 8,, 8 OUT,, Non-inverting outputs, 5, 9, NC No connects, grounded for best crosstalk performance 4, 8,,, Reference input, sets common-mode output voltage 4 EN ENABLE FN77.6
Connection Diagrams EL57-5V C L FBP OUT 8 OUT INP R G INP VSN VSP 7 6 R LD kω 4 FN77.6 INP INN INP INN INP INN R SP R SN R SR R SP R SN R SR R SP R S R SN R S R SR 4 FBN OUTB 5 EL57 NC OUT 8 4 INP INN FBP 7 FBN 6 OUTB 5 5 6 7 8 NC INP INN VSP 4 VSN OUT FBP 9 NC FBN INP INN OUTB 9 OUT 8 FBP 7 NC FBn 6 4 EN OUTB 5 ENABLE +5V -5V R G R G R G +5V C L C L OUTB C LB C L C LB R LD kω R LD kω C L R LD kω C LB EL57, EL57
Typical Performance Curves 4 A V =, R LD = kω, C LD =.7pF R LD = kω, C LD =.7pF 4 MAGNITUDE (db) - - - -4-5 V OP-P = mv V OP-P = V P-P NORMALIZED MAGNITUDE (db) - - - -4-5 A V = A V = 5 A V = A V = -6 M M M G -6 M M M G FIGURE. FREQUENCY RESPONSE FIGURE. FREQUENCY RESPONSE FOR VARIOUS GAIN NORMINALIZED GAIN (db) 4 - - - -4-5 -6 M R LD = kω M M G FIGURE. FREQUENCY RESPONSE vs R LD FIGURE 4. FREQUENCY RESPONSE vs C LD FIGURE 5. FREQUENCY RESPONSE FIGURE 6. FREQUENCY RESPONSE vs R LD 5 FN77.6
EL57, EL57 Typical Performance Curves (Continued) 5 4 MAGNITUDE (db) - - IMPEDENCE (Ω) - -4-5 K M M M. K K M M M FIGURE 7. FREQUENCY RESPONSE - V FIGURE 8. OUTPUT IMPEDANCE vs FREQUENCY PSRR (db) - - - -4 PSRR- -5-6 PSRR+ -7-8 -9 K K K M M M FIGURE 9. PSRR vs FREQUENCY CMRR (db) 9 8 7 6 5 4 K M M M G FIGURE. CMRR vs FREQUENCY K - VOLTAGE NOISE (nv/ Hz), CURRENT NOISE (pa/ Hz) E N I N GAIN (db) -4-5 -6-7 -8-9 CH <=> CH, CH <=> CH CH <=> CH K K K M M FIGURE. VOLTAGE AND CURRENT NOISE vs FREQUENCY - K M M M G FIGURE. CHANNEL ISOLATION vs FREQUENCY 6 FN77.6
EL57, EL57 Typical Performance Curves (Continued) V S = ±5V, A V =, R LD = kω -5 V S = ±5V, A V =, R LD = kω -5 DISTORTION (db) -55-6 -65-7 -75-8 -85-9 -95 HD (f = MHz) HD (f = 5MHz) HD (f = MHz) HD (f = 5MHz) DISTORTION (db) -55-6 -65-7 -75-8 -85-9 HD (f = 5MHz) HD (f = MHz) HD (f = 5MHz) HD (f = MHz) -.5.5.5 4 4.5 5 V OP-P, DM (V) -95 4 5 6 7 8 9 V OP-P, DM (V) FIGURE. HARMONIC DISTORTION vs DIFFERENTIAL OUTPUT VOLTAGE FIGURE 4. HARMONIC DISTORTION vs DIFFERENTIAL OUTPUT VOLTAGE DISTORTION (db) -5-55 -6-65 -7-75 -8-85 -9 V S = ±5V, A V =, V OP-P, DM = V HD (f = MHz) HD (f = MHz) HD (f = 5MHz) HD (f = 5MHz) DISTORTION (db) -4-5 -6-7 -8-9 V S = ±5V, A V =, V OP-P, DM = V HD (f = MHz) HD (f = 5MHz) HD (f = MHz) HD (f = 5MHz) -95-4 5 6 7 8 9 R LD (Ω) - 4 5 6 7 8 9 R LD (Ω) FIGURE 5. HARMONIC DISTORTION vs R LD FIGURE 6. HARMONIC DISTORTION vs R LD -4 V S = ±5V, R LD = kω, V OP-P, DM = V for A V =, V OP-P, DM = V for A V = -5 HD (A V = ) DISTORTION (db) -6-7 -8 HD (A V = ) HD (A V = ) HD (A V = ) 5mV/DIV -9-4 5 6 FREQUENCY (MHz) ns/div FIGURE 7. HARMONIC DISTORTION vs FREQUENCY FIGURE 8. SMALL SIGNAL TRANSIENT RESPONSE 7 FN77.6
EL57, EL57 Typical Performance Curves (Continued) M = ns, CH = 5mV/DIV, CH = 5V/DIV.5V/DIV CH CH ns/div ns/div FIGURE 9. LARGE SIGNAL TRANSIENT RESPONSE FIGURE. ENABLED RESPONSE CH CH M = ns, CH = 5mV/DIV, CH = 5V/DIV POWER DISSIPATION (W) JEDEC JESD5- LOW EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD..8.6.4..W 65mW SO8 θ JA =6 C/W QSOP8 θ JA =99 C/W ns/div 5 5 75 85 5 5 AMBIENT TEMPERATURE ( C) FIGURE. DISABLED RESPONSE FIGURE. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE JEDEC JESD5-7 HIGH EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD.4 POWER DISSIPATION (W)..8.6.4..66W 99mW SO8 θ JA = C/W QSOP8 θ JA =79 C/W 5 5 75 85 5 5 AMBIENT TEMPERATURE ( C) FIGURE. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE 8 FN77.6
EL57, EL57 Simplified Schematic V S + R R 4 R R R 7 R 8 IN+ IN- FBP FBN V B OUT+ R CD R CD C C V B OUT- R 9 R C C R 5 R 6 V S - Description of Operation and Application Information Product Description The EL57 and EL57 are wide bandwidth, low power and single ended to differential output amplifiers. The EL57 is a single channel differential amplifier. Since the I N - pin and pin are tired together internally, the EL57 can be used as a single ended to differential converter. The EL57 is a triple channel differential amplifier. The EL57 have a separate I N - pin and pin for each channel. It can be used as single/differential ended to differential converter. The EL57 and EL57 are internally compensated for closed loop gain of + of greater. Connected in gain of and driving a kω differential load, the EL57 and EL57 have a -db bandwidth of 5MHz. Driving a Ω differential load at gain of, the bandwidth is about MHz. The EL57 is available with a power down feature to reduce the power while the amplifier is disabled. Input, Output, and Supply Voltage Range The EL57 and EL57 have been designed to operate with a single supply voltage of 5V to V or a split supplies with its total voltage from 5V to V. The amplifiers have an input common mode voltage range from -4.5V to.4v for ±5V supply. The differential mode input range (DMIR) between the two inputs is from -.V to +.V. The input voltage range at the pin is from -.V to.8v. If the input common mode or differential mode signal is outside the above-specified ranges, it will cause the output signal distorted. Differential and Common Mode Gain Settings For EL57, since the I N - pin and pin are bounded together as the pin in an 8 Ld package, the signal at the pin is part of the common mode signal and also part of the differential mode signal. For the true balance differential outputs, the pin must be tired to the same bias level as the I N + pin. For a ±5V supply, just tire the pin to GND if the I N + pin is biased at V with a or 75Ω termination resistor. For a single supply application, if the I N + is biased to half of the rail, the pin should be biased to half of the rail also. The gain setting for EL57 is: V ODM V IN + + = + --------------------------- R G V ODM V IN + = + ---------- R G V OCM = V = V Where: V = V = = EL57 has a separate I N - pin and pin. It can be used as a single/differential ended to differential converter. The voltage applied at pin can set the output common mode voltage and the gain is one. The output of the EL57 and EL57 can swing from -.9V to +.9V at kω differential load at ±5V supply. As the load resistance becomes lower, the output swing is reduced. 9 FN77.6
EL57, EL57 The gain setting for EL57 is: V ODM ( V IN + V IN - ) + = + --------------------------- R G V ODM ( V IN + V IN - ) = + ---------- R G V OCM = V Where: = = V IN + V IN - V R G FBP IN+ IN- FBN V O + FIGURE 4. Choice of Feedback Resistor and Gain Bandwidth Product For applications that require a gain of +, no feedback resistor is required. Just short the OUT+ pin to FBP pin and OUT- pin to FBN pin. For gains greater than +, the feedback resistor forms a pole with the parasitic capacitance at the inverting input. As this pole becomes smaller, the amplifier's phase margin is reduced. This causes ringing in the time domain and peaking in the frequency domain. Therefore, has some maximum value that should not be exceeded for optimum performance. If a large value of must be used, a small capacitor in the few Pico farad range in parallel with can help to reduce the ringing and peaking at the expense of reducing the bandwidth. The bandwidth of the EL57 and EL57 depends on the load and the feedback network. and R G appear in parallel with the load for gains other than +. As this combination gets smaller, the bandwidth falls off. Consequently, also has a minimum value that should not be exceeded for optimum bandwidth performance. For gain of +, = is optimum. For the gains other than +, optimum response is obtained with between 5Ω to kω. The EL57 and EL57 have a gain bandwidth product of MHz for R LD = kω. For gains 5, its bandwidth can be predicted by the following equation: Gain BW = MHz V O - Driving Capacitive Loads and Cables The EL57 and EL57 can drive differential capacitor in parallel with kω differential load with less than 5dB of peaking at gain of +. If less peaking is desired in applications, a small series resistor (usually between 5Ω to ) can be placed in series with each output to eliminate most peaking. However, this will reduce the gain slightly. If the gain setting is greater than, the gain resistor R G can then be chosen to make up for any gain loss which may be created by the additional series resistor at the output. When used as a cable driver, double termination is always recommended for reflection-free performance. For those applications, a back-termination series resistor at the amplifier's output will isolate the amplifier from the cable and allow extensive capacitive drive. However, other applications may have high capacitive loads without a back-termination resistor. Again, a small series resistor at the output can help to reduce peaking. Disable/Power-Down (for EL57 only) The EL57 can be disabled and placed its outputs in a high impedance state. The turn off time is about.95µs and the turn on time is about 5ns. When disabled, the amplifier's supply current is reduced to.7µa for I S + and µa for I S - typically, thereby effectively eliminating the power consumption. The amplifier's power down can be controlled by standard CMOS signal levels at the ENABLE pin. The applied logic signal is relative to V S + pin. Letting the EN pin float or applying a signal that is less than.5v below V S + will enable the amplifier. The amplifier will be disabled when the signal at EN pin is above V S + -.5V. Output Drive Capability The EL57 and EL57 have internal short circuit protection. Its typical short circuit current is ±9mA for EL57 and ±7mA for EL57. If the output is shorted indefinitely, the power dissipation could easily increase such that the part will be destroyed. Maximum reliability is maintained if the output current never exceeds ±6mA. This limit is set by the design of the internal metal interconnections. Power Dissipation With the high output drive capability of the EL57 and EL57. It is possible to exceed the 5 C absolute maximum junction temperature under certain load current conditions. Therefore, it is important to calculate the maximum junction temperature for the application to determine if the load conditions or package types need to be modified for the amplifier to remain in the safe operating area. The maximum power dissipation allowed in a package is determined according to: T JMAX T AMAX PD MAX = -------------------------------------------- Θ JA FN77.6
EL57, EL57 Where: T JMAX = Maximum junction temperature T AMAX = Maximum ambient temperature θ JA = Thermal resistance of the package The maximum power dissipation actually produced by an IC is the total quiescent supply current times the total power supply voltage, plus the power in the IC due to the load, or: ΔV O PD = i V S I SMAX + V S ----------- R LD Where: V S = Total supply voltage I SMAX = Maximum quiescent supply current per channel ΔV O = Maximum differential output voltage of the application R LD = Differential load resistance I LOAD = Load current i = Number of channels By setting the two PD MAX equations equal to each other, we can solve the output current and R LD to avoid the device overheat. Typical Applications Power Supply Bypassing and Printed Circuit Board Layout As with any high frequency device, a good printed circuit board layout is necessary for optimum performance. Lead lengths should be as sort as possible. The power supply pin must be well bypassed to reduce the risk of oscillation. For normal single supply operation, where the V S - pin is connected to the ground plane, a single 4.7µF tantalum capacitor in parallel with a.µf ceramic capacitor from V S + to GND will suffice. This same capacitor combination should be placed at each supply pin to ground if split supplies are to be used. In this case, the V S - pin becomes the negative supply rail. For good AC performance, parasitic capacitance should be kept to minimum. Use of wire wound resistors should be avoided because of their additional series inductance. Use of sockets should also be avoided if possible. Sockets add parasitic inductance and capacitance that can result in compromised performance. Minimizing parasitic capacitance at the amplifier's inverting input pin is very important. The feedback resistor should be placed very close to the inverting input pin. Strip line design techniques are recommended for the signal traces. R T R G EL57/ EL57 5 5 TWISTED PAIR Z O = Ω IN+ FBP IN+ IN- FBN IN- EL57/ EL57 V O R R GR FIGURE 5. TWISTED PAIR CABLE RECEIVER FN77.6
As the signal is transmitted through a cable, the high frequency signal will be attenuated. One way to compensate this loss is to boost the high frequency gain at the receiver side. FBP I N + V O + I N - FBN FIGURE 6. TRANSMIT EQUALIZER NOTE: The package drawing shown here may not be the latest version. To check the latest revision, please refer to the Intersil website at http://www.intersil.com/design/packages/index.asp FN77.6
EL57, EL57 Small Outline Package Family (SO) A D h X 45 N (N/)+ A E E PIN # I.D. MARK c SEE DETAIL X (N/) B. M C A B L C e H A SEATING PLANE GAUGE PLANE..4 C. M C A B b A DETAIL X L 4 ±4 MDP7 SMALL OUTLINE PACKAGE FAMILY (SO) SYMBOL SO-8 SO-4 SO6 (.5 ) SO6 (. ) (SOL-6) SO (SOL-) SO4 (SOL-4) SO8 (SOL-8) TOLERANCE NOTES A.68.68.68.4.4.4.4 MAX - A.6.6.6.7.7.7.7 ±. - A.57.57.57.9.9.9.9 ±. - b.7.7.7.7.7.7.7 ±. - c.9.9.9.... ±. - D.9.4.9.46.54.66.74 ±.4, E.6.6.6.46.46.46.46 ±.8 - E.54.54.54.95.95.95.95 ±.4, e.5.5.5.5.5.5.5 Basic - L.5.5.5.... ±.9 - L.4.4.4.56.56.56.56 Basic - h....... Reference - N 8 4 6 6 4 8 Reference - Rev. L / NOTES:. Plastic or metal protrusions of.6 maximum per side are not included.. Plastic interlead protrusions of. maximum per side are not included.. Dimensions D and E are measured at Datum Plane H. 4. Dimensioning and tolerancing per ASME Y4.5M-994 FN77.6
EL57, EL57 Quarter Size Outline Plastic Packages Family (QSOP) N (N/)+ E E PIN # I.D. MARK (N/). C A B SEATING PLANE.4 C b DETAIL X All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9 quality systems. Intersil Corporation s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 4 FN77.6