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ISL59119
Data Sheet January 28, 2008 FN6319.1
Triple Channel Video Driver with LPF
The ISL59119 is a triple channel reconstruction filter with a -3dB roll-off frequency of 8MHz. Operating from single supplies ranging from +3.0V to +5.5V and sinking an ultra-low 8mA quiescent current, the ISL59119 is ideally suited for low power, battery-operated applications. The ISL59119 is designed to meet the needs for micropower and bandwidth required in battery-operated communication, instrumentation and modern industrial applications such as video on demand, cable set-top boxes, and MP3 players. The ISL59119 is available in an 8 Ld SO package and is specified for operation over the full -40C to +85C temperature range.
Features
* 5th Order 8MHz Reconstruction Filter * Low Supply Current (8mA typ) * Supplies from +3.0V to +5.5V * Rail-to-Rail Output * Pb-free (RoHS compliant)
Applications
* Video Amplifiers * Portable and Handheld Products * Communications Devices * Video on Demand * Cable Set-top Boxes
Ordering Information
PART NUMBER (Note) ISL59119IBZ* PART MARKING 59119 IBZ TEMP. RANGE (C) PACKAGE( Pb-Free) PKG. DWG. # MDP0027
* Satellite Set-top Boxes * MP3 Players * Personal Video Recorder
-40 to +85C 8 Ld SOIC
*Add "-T13" suffix for tape and reel. Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is 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-020.
Block Diagram
+ 75mV YIN 1A 500mV 8MHz -+ x2 YOUT
Pinout
ISL59119 (8 LD SO) TOP VIEW
YIN 1 CIN 2 CVBSIN 3 VDD 4 8 YOUT 7 COUT 6 CVBSOUT 5 GND CVBSIN 1A CIN + 8MHz
75mV -+ x2 COUT
75mV 8MHz -+ x2 CVBSOUT
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright (c) Intersil Americas Inc. 2007, 2008. All Rights Reserved. All other trademarks mentioned are the property of their respective owners.
ISL59119
Absolute Maximum Ratings (TA = +25C)
Supply Voltage from VDD to GND . . . . . . . . . . . . . . . . . . . . . . . 6.0V Input Voltage . . . . . . . . . . . . . . . . . . . . . . . VDD +0.3V to GND -0.3V Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA
Thermal Information
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65C to +125C Ambient Operating Temperature . . . . . . . . . . . . . . . .-40C to +85C Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +125C Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty.
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: TJ = TC = TA
Electrical Specifications
PARAMETER INPUT CHARACTERISTICS VDD IDD
VDD = 3.3V, TA = +25C, RL = 150 to GND, unless otherwise specified. CONDITIONS MIN TYP MAX UNIT
DESCRIPTION
Supply Voltage Range Quiescent Supply Current VDD = 3.3V, VIN = 500mV, no load VDD = 5.5V, VIN = 500mV, no load
3.0 8.4 9.5 -40 0.5 0 1 -2.6 10 -40 0.5 0 1 -2.6 10 420 -60 25 5 -150 80 RL = 150 1.95 -2 VDD = 3.3V VDD = 5.0V 35 45 60 2.6 65 65 44 48 150 3.1 550 -40 40 7 0 145 2.0
5.5 11.5 12.5 +40 2 -1.5
V mA mA mV A mA M
VY_CLAMP IY_DOWN IY_CLAMP RY VCVBS_CLAMP ICVBS_DOWN ICVBS_CLAMP RCVBS VC_CLAMP IC_DOWN IC_UP RC IC VY_SYNC AV
Y Input Clamp Voltage Y Input Pull-down Current Y Input Clamp Pull-up Current Y Input Resistance CVBS Input Clamp Voltage CVBS Input Pull-down Current CVBS Input Clamp Pull-up Current CVBS Input Resistance C Input Clamp Voltage C Input Clamp Pull-down Current C Input Clamp Pull-up Current C Input Resistance C Input Bias Current Y Input Sync Detect Voltage Voltage Gain C-Y-CVBS Channel Mismatch DC Power Supply Rejection
IY = -100A VY = 0.5V VY = -0.2V 0.5V < VY < 1V ICVBS = -100A VCVBS = 0.5V VCVBS = -0.2V 0.5V < VCVBS < 1V VY < 0.08V, IC = 0A VC = 1V, VY < 0.08V VC = 0V, VY < 0.08V VY < 0.08V, 0.25V < VC < 0.75V VY > 0.2V
40 2 -1.5
mV A mA M
650 -25 60 10 +150 200 2.04 +2
mV A A k nA mV V/V % dB dB
AV
PSRR
VOS VOH ISC
Output Level Shift Voltage Output Voltage High Swing Output Short-Circuit Current
VIN = 0V, no load VIN = 2V, RL = 75 to GND (dual load) VIN = 2V, to GND through 10, sourcing VIN = 100mV, out short to VDD through 10
240
mV V mA mA
AC PERFORMANCE PB BW Passband Flatness -3dB Bandwidth f = 4.2MHz relative to 1.1MHz, RL = 150, CL = 5pF RL = 150, CL = 5pF -1 0 8 +1 dB MHz
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FN6319.1 January 28, 2008
ISL59119
Electrical Specifications
PARAMETER SB dG dP D/DT XTALK ROUT_AC +SR -SR VDD = 3.3V, TA = +25C, RL = 150 to GND, unless otherwise specified. (Continued) CONDITIONS f = 27MHz relative to 1.1MHz NTSC and PAL NTSC and PAL f = 100kHz, 5MHz f = 1MHz, between any two channels f = 4.2MHz 10% to 90%, VIN = 1V step 90% to 10%, VIN = 1V step 15 15 MIN -60 TYP -50 0.2 0.5 5.4 -70 1.5 25 20 45 45 MAX -40 UNIT dB % ns dB V/s V/s
DESCRIPTION Normalized Stopband Gain Differential Gain Differential Phase Group Delay Variation Crosstalk Output Impedance Positive Slew Rate Negative Slew Rate
Connection Diagram
3.3V
0.1F VDD + YIN Y (LUMINANCE) 0.1F 1A 500mV 8MHz 75mV -+ x2 75 75 YOUT YOUT S-VIDEO CABLE
CIN C (CHROMINANCE) 0.1F + CVBSIN CVBS (COMPOSITE) 0.1F 1A 8MHz 8MHz
75mV -+ x2
COUT COUT 75 75
75mV -+ x2
CVBSOUT CVBSOUT 75 75
Pin Descriptions
PIN NUMBER 1 2 3 4 5 6 7 8 PIN NAME YIN CIN CVBSIN VDD GND CVBSOUT COUT YOUT Luminance Input Chrominance input Composite Video input Positive power supply Ground Composite Video output Chrominance output Luminance output DESCRIPTION
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FN6319.1 January 28, 2008
ISL59119 Typical Performance Curves
1 NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) 0 -1 -2 -3 -4 VIN = 100mVP-P VDD = 3.3V 0 -1 -2 -3 -4 VIN = 700mVP-P VDD = 5V 1 VDD = 3.3V
VDD = 5V
-5 0.1M
1M
10M
100M
-5 0.1M
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
FIGURE 1. SMALL SIGNAL GAIN vs FREQUENCY -0.1dB
FIGURE 2. LARGE SIGNAL GAIN vs FREQUENCY -0.1dB
10 NORMALIZED GAIN (dB) 0 -10 -20 -30 -40 -50 -60 0.1M VIN = 100mVP-P OR 700mVP-P GAIN (dB)
0.2 CL = 220pF 0 -0.2 -0.4 -0.6 -0.8 -1 0.1M VIN = 100mVP-P CL = 39pF
1M
10M FREQUENCY (Hz)
100M
1M
10M FREQUENCY (Hz)
100M
FIGURE 3. GAIN vs FREQUENCY -3dB POINT
FIGURE 4. GAIN vs FREQUENCY FOR VARIOUS CLOAD
140 120
VDD = 3.3V
0 -10 REJECTION (dB) -20 -30 -40 -50 -60 -70 1k 10k 100k FREQUENCY (Hz) 1M 10Mk VDD = 5V VAC = 100mVP-P
100 DELAY (ns) 80 60 40 20 0 0.1M VDD = 5V
VDD = 3.3V
1M
10M FREQUENCY (Hz)
100M
FIGURE 5. GROUP DELAY vs FREQUENCY
FIGURE 6. PSRR vs FREQUENCY
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FN6319.1 January 28, 2008
ISL59119 Typical Performance Curves (Continued)
80 70 CROSSTALK (dB) IMPEDANCE (Z) 60 50 40 30 20 10 0 0.01M 0.1M 1M FREQUENCY (Hz) 10M VDD = 5V 100M VDD = 3.3V 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 0.1M CHROMA TO CV 1M Y TO CV CV TO Y 100M Y TO CHROMA CV TO CHROMA CHROMA TO LUMA
10M FREQUENCY (Hz)
FIGURE 7. OUTPUT IMPEDANCE vs FREQUENCY
FIGURE 8. CROSSTALK vs FREQUENCY
5.0 OUTPUT MAGNITUDE (VP-P) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 0 0.5 1.0 1.5 2.0 INPUT MAGNITUDE (VP-P) 2.5 3.0 CURRENT (mA) f = 500kHz
9.4 9.2 9.0 8.8 8.6 8.4 8.2 8.0 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 VOLTAGE (V) INPUTS FLOATING NO LOAD
FIGURE 9. MAXIMUM OUTPUT MAGNITUDE vs INPUT MAGNITUDE
FIGURE 10. SUPPLY CURRENT vs SUPPLY VOLTAGE
fIN = 500kHz TIMEBASE = 200ns/DIV VERTICAL SCALE: 500mV/DIV
fIN = 500kHz TIMEBASE = 200ns/DIV VERTICAL SCALE: 100mV/DIV
OUTPUT
FIGURE 11. LARGE SIGNAL STEP RESPONSE
FIGURE 12. SMALL SIGNAL PULSE RESPONSE
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FN6319.1 January 28, 2008
ISL59119 Typical Performance Curves (Continued)
TIMEBASE = 100ns/DIV INPUT: 200mV/DIV OUTPUT: 500mV/DIV INPUT OUTPUT TIMEBASE = 500ns/DIV INPUT: 200mV/DIV OUTPUT: 500mV/DIV INPUT
OUTPUT
FIGURE 13. 2T RESPONSE
FIGURE 14. 12.5T RESPONSE
TIMEBASE = 10s/DIV INPUT: 500mV/DIV OUTPUT: 1V/DIV INPUT YOUT SYNC TIP: +130mV
OUTPUT COUT AVERAGE LEVEL: +1.26V
TIMEBASE = 10s/DIV YOUT: 500mV/DIV COUT: 500mV/DIV
FIGURE 15. NTSC COLOR BAR
FIGURE 16. S-VIDEO OUTPUT
0.20 DIFFERENTIAL GAIN (%) 0.15 0.10 0.05 0 -0.05 -0.10 -0.15 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 DIFFERENTIAL PHASE (%) VAC = 40mVP-P f = 3.58MHz
0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 VAC = 40mVP-P f = 3.58MHz
INPUT DC VOLTAGE (V)
INPUT DC LEVEL (V)
FIGURE 17. DIFFERENTIAL GAIN
FIGURE 18. DIFFERENTIAL PHASE
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FN6319.1 January 28, 2008
ISL59119 Typical Performance Curves (Continued)
0 HARMONIC DISTORTION (dBc) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 0.5M 1.0M 1.5M 2.0M 2.5M 3.0M 3.5M FREQUENCY (Hz) 4.0M 4.5M 5.0M 2ND HD 3RD HD THD (dBc) THD VDD = 3.3V VOUT = 1.5VP-P, SINEWAVE RL = 150 0 -10 -20 -30 -40 -50 -60 -70 -80 0.5 0.9 1.3 1.7 OUTPUT VOLTAGE (VP-P) 2.1 2.5 fIN = 500kHz fIN = 5MHz VDD = 3.3V RL = 150
FIGURE 19. HARMONIC DISTORTION vs FREQUENCY
FIGURE 20. HARMONIC DISTORTION vs OUTPUT VOLTAGE
200 VOLTAGE NOISE (nV/Hz) 180 160 -3dB POINT (MHz) 1k 10k 100k FREQUENCY (Hz) 1M 10M 140 120 100 80 60 40 20 0
8.7 8.6 8.5 8.4 8.3 8.2 8.1 8.0 0 100 200 300 INPUT RESISTANCE () 400 500
FIGURE 21. OUTPUT VOLTAGE NOISE vs FREQUNCY
FIGURE 22. -3dB BANDWIDTH vs INPUT RESISTANCE
INPUT = NTSC VIDEO + 2Hz SQUARE WAVE (BEFORE COUPLING CAPACITOR)
INPUT = NTSC VIDEO + 2Hz SQUARE WAVE TIMEBASE = 500s/DIV INPUT: 500mV/DIV (BEFORE COUPLING CAPACITOR) OUTPUT: 1V/DIV
TIMEBASE = 10ms/DIV INPUT: 500mV/DIV OUTPUT: 1V/DIV
OUTPUT
OUTPUT
FIGURE 23. RESPONSE TO +500mV DC STEP ON INPUT (SEE FIGURE 27)
FIGURE 24. RESPONSE TO -500mV DC STEP ON INPUT (SEE FIGURE 27)
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FN6319.1 January 28, 2008
ISL59119 Typical Performance Curves (Continued)
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD 909mW 0.8
J /W 8 C S O 10 +1 =
A
1.0 POWER DISSIPATION (W)
0.7 POWER DISSIPATION (W)
JEDEC JESD51-3 LOW EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD
0.6 625mW
J
0.5 0.4 391mW 0.3 0.2 0.1 0
/W 8 C SO 60 +1 =
A
0.6 435mW 0.4
J
SO
A= +
0.2
T2 3-6 23 0 C /W
JA =
SO
T2 3-6 +2 56 C /W
0 0 25 50 75 85 100 125 150 AMBIENT TEMPERATURE (C)
0
25
50
75 85 100
125
150
AMBIENT TEMPERATURE (C)
FIGURE 25. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE
FIGURE 26. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE
Application Information
The ISL59119 is a single-supply rail-to-rail triple (one S-video channel and one composite channel) video amplifier with internal sync tip clamps, a typical -3dB bandwidth of 8MHz and slew rate of about 25V/s. This part is ideally suited for applications requiring high composite and S-video performance with very low power consumption. As the performance characteristics and features illustrate, the ISL59119 is optimized for portable video applications.
Figure 27 shows the setup for testing the clamp's response to a large step response at the input.
1Hz SQUARE WAVE 500
CH1 NTSC VIDEO 75
CH2
Internal Sync Clamp
Embedded video DACs typically use ground as their most negative supply. This places the sync tip voltage at a minimum of 0V. Presenting a 0V input to most single supply amplifiers will saturate the output stage of the amplifier resulting in a clipped sync tip and degraded video image. The ISL59119 features an internal sync clamp and offset function that level shifts the entire video signal to the optimum level before it reaches the amplifiers' input stage. These features also help avoid saturation of the output stage of the amplifier by setting the signal closer to the best voltage range. The simplified block diagram on page 1 shows the basic operation of the ISL59119's sync clamp. The Y and CVBS inputs' AC-coupled video sync signal is pulled negative by a current source at the input. When the sync tip goes below the comparator threshold, the comparator output goes high, pulling up on the input through the diode, forcing current into the coupling capacitor until the voltage at the input is again 0V, and the comparator turns off. This forces the sync tip clamp to always be 0V, setting the offset for the entire video signal. The C-Channel is slaved to the Y-Channel and clamped to a 500mV level at the input.
75
ISL59119 0.1F
OUTPUT 150
FIGURE 27. DC STEP RESPONSE CIRCUIT
Once the signals are clamped at the input they are level shifted by +65mV before being amplified by a gain of x2.
The Sallen Key Low Pass Filter
The Sallen Key is a classic low pass configuration. This provides a very stable low pass function, and in the case of the ISL59119, a three-pole roll-off at 8MHz. The three-pole function is accomplished with an RC low pass network placed in series with and before the Sallen Key. The first pole is formed by an RC network, with poles two and three generated with a Sallen Key, creating a nice three-pole roll-off at 8MHz.
Output Coupling
The ISL59119 can be AC or DC coupled to its output. When AC coupling, a 220F coupling capacitor is recommended to ensure that low frequencies are passed, preventing video "tilt" or "droop" across a line. The ISL59119's internal sync clamp makes it possible to DC couple the output to a video load, eliminating the need for any AC coupling capacitors, saving board space, cost, and eliminating any "tilt" or offset shift in the output signal. The
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FN6319.1 January 28, 2008
ISL59119
trade-off is larger supply current draw, since the DC component of the signal is now dissipated in the load resistor. Typical load current for AC coupled signals is 5mA compared to 10mA for DC coupling. Where: VS = Supply voltage ISMAX = Maximum quiescent supply current VOUT = Maximum output voltage of the application RLOAD = Load resistance tied to ground ILOAD = Load current
Output Drive Capability
The ISL59119 does not have internal short circuit protection circuitry. If the output is shorted indefinitely, the power dissipation could easily overheat the die or the current could eventually compromise metal integrity. Maximum reliability is maintained if the output current never exceeds 40mA. This limit is set by the design of the internal metal interconnect. Note that for transient short circuits, the part is robust. Short circuit protection can be provided externally with a back match resistor in series with the output placed close as possible to the output pin. In video applications this would be a 75 resistor and will provide adequate short circuit protection to the device. Care should still be taken not to stress the device with a short at the output.
Power Supply Bypassing Printed Circuit Board Layout
As with any modern operational amplifier, a good printed circuit board layout is necessary for optimum performance. Lead lengths should be as short as possible. The power supply pin must be well bypassed to reduce the risk of oscillation. For normal single supply operation, a single 4.7F tantalum capacitor in parallel with a 0.1F ceramic capacitor from VS+ to GND will suffice.
Printed Circuit Board Layout
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.
Power Dissipation
With the high output drive capability of the ISL59119, it is possible to exceed the +125C absolute maximum junction temperature under certain load current conditions. Therefore, it is important to calculate the maximum junction temperature for an application to determine if load conditions or package types need to be modified to assure operation of the amplifier in a safe operating area. The maximum power dissipation allowed in a package is determined according to Equation 1:
T JMAX - T AMAX PD MAX = ------------------------------------------- JA (EQ. 1)
Where: TJMAX = Maximum junction temperature TAMAX = Maximum ambient temperature 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: for sourcing use Equation 2:
V OUT PD MAX = V S x I SMAX + ( V S - V OUT ) x --------------R
L
(EQ. 2)
for sinking use Equation 3:
PD MAX = V S x I SMAX + ( V OUT - V S ) x I LOAD (EQ. 3)
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 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 9
FN6319.1 January 28, 2008
ISL59119 Small Outline Package Family (SO)
A D N (N/2)+1 h X 45
A E E1 PIN #1 I.D. MARK c SEE DETAIL "X"
1 B
(N/2) L1
0.010 M C A B e C H A2 GAUGE PLANE A1 0.004 C 0.010 M C A B b DETAIL X
SEATING PLANE L 4 4
0.010
MDP0027
SMALL OUTLINE PACKAGE FAMILY (SO) INCHES SYMBOL A A1 A2 b c D E E1 e L L1 h N NOTES: 1. Plastic or metal protrusions of 0.006" maximum per side are not included. 2. Plastic interlead protrusions of 0.010" maximum per side are not included. 3. Dimensions "D" and "E1" are measured at Datum Plane "H". 4. Dimensioning and tolerancing per ASME Y14.5M-1994 SO-8 0.068 0.006 0.057 0.017 0.009 0.193 0.236 0.154 0.050 0.025 0.041 0.013 8 SO-14 0.068 0.006 0.057 0.017 0.009 0.341 0.236 0.154 0.050 0.025 0.041 0.013 14 SO16 (0.150") 0.068 0.006 0.057 0.017 0.009 0.390 0.236 0.154 0.050 0.025 0.041 0.013 16 SO16 (0.300") (SOL-16) 0.104 0.007 0.092 0.017 0.011 0.406 0.406 0.295 0.050 0.030 0.056 0.020 16 SO20 (SOL-20) 0.104 0.007 0.092 0.017 0.011 0.504 0.406 0.295 0.050 0.030 0.056 0.020 20 SO24 (SOL-24) 0.104 0.007 0.092 0.017 0.011 0.606 0.406 0.295 0.050 0.030 0.056 0.020 24 SO28 (SOL-28) 0.104 0.007 0.092 0.017 0.011 0.704 0.406 0.295 0.050 0.030 0.056 0.020 28 TOLERANCE MAX 0.003 0.002 0.003 0.001 0.004 0.008 0.004 Basic 0.009 Basic Reference Reference NOTES 1, 3 2, 3 Rev. M 2/07
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FN6319.1 January 28, 2008

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