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| FMS6363 -- Low-Cost, Three-Channel, 6th-Order, High-Definition Video Filter Driver March 2008 FMS6363 -- Low-Cost, Three-Channel, 6th-Order, High-Definition, Video Filter Driver Features Three Sixth-order 30MHz (HD) Filters Transparent Input Clamping Single Video Drive Load (2Vpp, 150 = 6) AC or DC-coupled Inputs AC or DC-coupled Outputs DC-coupled Outputs Eliminate AC-coupling Capacitors 5V Only Robust 8kV ESD Protection Package SOIC-8 Description The FMS6363 low-cost video filter (LCVF) is intended to replace passive LC filters and drivers with a low-cost integrated device. Three sixth-order filters provide improved image quality compared to typical lower-order passive solutions. The FMS6363 may be directly driven by a DC-coupled DAC output or an AC-coupled signal. Internal diode clamps and bias circuitry may be used if AC-coupled inputs are required (see Applications section for details). The outputs can drive AC-or DC-coupled single (150) loads. DC-coupling the outputs removes the need for output coupling capacitors. The input DC levels are offset approximately +280mV at the output (see Applications section for details). Applications Cable and Satellite Set-top Boxes DVD Players HDTV Personal Video Recorders (PVR) Video On Demand (VOD) Block Diagram IN1 Transparent Clamp 6dB OUT1 IN2 Transparent Clamp 6dB OUT2 IN3 Transparent Clamp 6dB OUT3 30MHz, 6th order Figure 1. Block Diagram Ordering Information Part Number FMS6363CS FMS6363CSX Operating Temperature Range 0 to 70C 0 to 70C Package 8-Lead, Small Outline Integrated Circuit (SOIC) 8-Lead, Small Outline Integrated Circuit (SOIC) Packing Method Rail Reel Quantity 95 2500 All packages are lead free per JEDEC: J-STD-020B standard. (c) 2005 Fairchild Semiconductor Corporation FMS6363 * Rev. 1.0.3 www.fairchildsemi.com FMS6363 -- Low-Cost, Three-Channel,6th-Order, High-Definition, Video Filter Driver Pin Configuration IN1 IN2 IN3 Pin Definitions Pin # Name Type Input Input Input Input Input Output Output Output Description Video input, channel 1 Video input, channel 2 Video input, channel 3 +5V Supply Ground Filtered output, channel 3 Filtered output, channel 2 Filtered output, channel 1 1 2 3 4 8 7 6 5 OUT1 OUT2 1 2 3 4 5 6 7 8 IN1 IN2 IN3 VCC GND OUT3 OUT2 OUT1 OUT3 GND VCC Figure 2. 8-Pin SOIC Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol VCC VIO IOUT ESD DC Supply Voltage Analog Digital I/O Parameter Min. -0.3 -0.3 Max. 6.0 VCC + 0.3 50 8 Unit V V mA kV Output Current, Any One Channel, Do Not Exceed Human Body Model, JESD22-A114 Reliability Information Symbol TJ TSTG TL JA Parameter Junction Temperature Storage Temperature Range Lead Temperature, Soldering 10 Seconds Thermal Resistance, JEDEC Standard, Multi-layer Test Board, Still Air Min. -65 Typ. Max. +150 +150 +300 Unit C C C C/W 112.7 Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol TA VCC RSOURCE Parameter Operating Temperature Range Supply Voltage Range Input Source Resistance Min. 0 4.75 Typ. 5.00 Max. 70 5.25 300 Unit C V www.fairchildsemi.com (c) 2005 Fairchild Semiconductor Corporation FMS6363 * Rev. 1.0.3 2 FMS6363 -- Low-Cost, Three-Channel,6th-Order, High-Definition, Video Filter Driver DC Electrical Characteristics TA=25C, VCC=5V, RSOURCE=37.5, inputs AC coupled with 0.1F, all outputs AC coupled with 220F into150 loads, referenced to 400kHz; unless otherwise noted. Symbol ICC VIN Parameter Supply Current (1) Conditions No Load Referenced to GND, if DC-coupled Min. Typ. 22 1.4 Max. 30 Units mA VPP Video Input Voltage Range Note: 1. 100% tested at 25C. AC Electrical Characteristics TA=25C, VIN=1VPP, VCC=5V, RSOURCE=37.5, inputs AC coupled with 0.1F, all outputs AC coupled with 220F into150 loads, referenced to 400kHz; unless otherwise noted. Symbol AV f1dB fC fSB1 fSB2 fSB3 THD1 THD2 THD3 XTALK SNR1 SNR2 tpd Parameter Channel Gain (2) (2) Conditions All Channels All Channels All Channels All Channels at f=37.125MHz All Channels at f=44.25MHz All Channels at f=74.25MHz VOUT=1.4VPP, 10MHz (2) Min. 5.8 23 30 Typ. 6.0 30 33 6.5 14.5 Max. 6.2 Units dB MHz MHz dB -1dB Bandwidth -3dB Bandwidth Attenuation, Stopband Reject 32 36 0.2 0.4 1.2 -60 65 20 dB dB ns % Output Distortion, All Channels Crosstalk Channel-to-Channel Signal-to-Noise Ratio, All Channels(4) Propagation Delay (3) VOUT=1.4VPP, 15MHz VOUT=1.4VPP, 22MHz At 1MHz Unweighed; 30MHz lowpass, 100KHz to 30HKz Delay from input to output Notes: 2. 100% tested at 25C. 3. 1.4VPP active video. 4. SNR=20 * log (714mV/rms noise). (c) 2005 Fairchild Semiconductor Corporation FMS6363 * Rev. 1.0.3 www.fairchildsemi.com 3 FMS6363 -- Low-Cost, Three-Channel,6th-Order, High-Definition, Video Filter Driver Typical Performance Characteristics TA=25C, VCC=5V, RSOURCE=37.5, inputs AC coupled with 0.1F, all outputs AC coupled with 220F into150 loads, referenced to 400kHz; unless otherwise noted. 12 6 0 -6 1 2 Mkr Frequency Ref 400kHz 1 2 3 28.847MHz 33.11MHz 74.25MHz Gain 6dB -1dB BW -3dB BW -38.11dB 15 10 5 1 -12 -18 -24 -30 -36 -42 -48 400kH 20 40 60 Delay (ns) Gain (dB) 0 -5 -10 3 -15 1 = 32MHz (10.32ns) 80 100 120 140 -20 400kH 10 20 30 40 50 60 70 80 90 Frequency (MHz) Frequency (MHz) Figure 3. Frequency Response Figure 4. Group Delay vs. Frequency -20 -30 -40 PSRR (dB) -50 -60 -70 -80 -90 0.1 1 Frequency (MHz) 10 30 PSRR (dB) -30 Using 0.1F and 0.01F * Bypass Capacitors as suggested -40 -50 -60 -70 -80 -90 0.1 1 Frequency (MHz) 10 30 Figure 5. PSRR vs. Frequency; No Bypass Caps Figure 6. PSRR vs. Frequency; Bypass Caps 2 SYNC Tip Compression (mV) 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 25 50 75 100 125 150 175 200 225 250 275 300 Figure 7. SYNC Tip Compression vs. RSOURCE (c) 2005 Fairchild Semiconductor Corporation FMS6363 * Rev. 1.0.3 www.fairchildsemi.com 4 FMS6363 -- Low-Cost, Three-Channel,6th-Order, High-Definition, Video Filter Driver Applications Information Functional Description The FMS6363 Low-Cost Video Filter (LCVF) provides 6dB gain from input to output. In addition, the input is slightly offset to optimize the output driver performance. The offset is held to the minimum required value to decrease the standing DC current into the load. Typical voltage levels are shown in Figure 8. 1.02V 0.65 V YIN Driver YOUT 800k 0.32V 0.02V 2.28V V IN Driven by: DC-Coupled DAC Outputs o r AC-Coupled and Clamped Y, R, G, B, CV V OUT Figure 9. Input Clamp Circuit I/O Configurations For DC-coupled DAC drive with DC-coupled outputs, use the configuration in Figure 10. 0.88V 0.28V There will be a 280mV offset from the DC input level to the DC output level. Vout = 2 * Vin + 280mV 0V - 1.4V 0.85V 0.5V 0.15V V IN DVD or STB SoC DAC Output LCVF Clamp Inactive 75 Figure 10. DC-coupled Inputs and Outputs 1.98V 1.28V 0.58V V OUT Driven by: DC-Coupled DAC Outputs AC-Coupled and Biased U, V, Pb, Pr, C Alternatively, if the DAC's average DC output level causes the signal to exceed the range of 0V to 1.4V, it can be AC-coupled, as shown in Figure 11. 0V - 1.4V Figure 8. Typical Voltage Levels The FMS6363 provides an internal diode clamp to support AC coupled input signals. If the input signal does not go below ground, the input clamp does not operate. This allows DAC outputs to directly drive the FMS6363 without an AC coupling capacitor. The worstcase sync tip compression due to the clamp does not exceed 7mV. The input level set by the clamp, combined with the internal DC offset, keeps the output within its acceptable range. When the input is ACcoupled, the diode clamp sets the sync tip (or lowest voltage) just below ground. For symmetric signals like C, U, V, Cb, Cr, Pb and Pr; the average DC bias is fairly constant and the inputs can be AC-coupled with the addition of a pull-up resistor to set the DC input voltage. DAC outputs can also drive these same signals without the AC coupling capacitor. A conceptual illustration of the input clamp circuit is shown in Figure 9. DVD or STB SoC DAC Output 0.1 LCVF Clamp Active 75 Figure 11. AC-coupled Inputs, DC-coupled Outputs When the FMS6363 is driven by an unknown external source or a SCART with its own clamping circuitry the inputs should be AC-coupled, shown in Figure 12. 0V - 1.4V 0.1 External Video source must be AC-coupled. 75 LCVF Clamp Active 75 Figure 12. SCART with DC-coupled Outputs (c) 2005 Fairchild Semiconductor Corporation FMS6363 * Rev. 1.0.3 www.fairchildsemi.com 5 FMS6363 -- Low-Cost, Three-Channel,6th-Order, High-Definition, Video Filter Driver The same method can be used for biased signals with the addition of a pull-up resistor to make sure the clamp never operates. The internal pull-down resistance is 800k 20%, so the external resistance should be 7.5M to set the DC level to 500mV. If a pull-up resistance of less than 7.5M desired, add an external pull-down such that the DC input level is set to 500mV. External Video source must be AC-coupled. 7.5M The FMS6363 is specified to operate with output currents typically less than 50mA, more than sufficient for a single (150) video load. Internal amplifiers are current limited to a maximum of 100mA and should withstand brief duration, short-circuit conditions; however, this capability is not guaranteed. Layout Considerations 0.1 LCVF Bias Input 500mV +/-350mV 75 Layout and supply bypassing play major roles in highfrequency performance and thermal characteristics. For optimum results, follow the steps below as a basis for high-frequency layout: Include 10F and 0.1F ceramic bypass capacitors 75 Figure 13. Biased SCART with DC-coupled Outputs 0V - 1.4V 220 Place the 10F capacitor within 0.75 inches of the power pin. Place the 0.1F capacitor within 0.1 inches of the power pin. Connect all external ground pins as tightly as possible, preferably with a large ground plane under the package. Layout channel connections to reduce mutual trace inductance. DVD or STB SoC DAC Output LCVF Clamp Inactive 75 Figure 14. DC-coupled Inputs, AC-coupled Outputs External video source must be AC-coupled. 7.5M 0.1 LCVF Clamp Active 500mV +/-350mV 75 220 75 Figure 15. Biased SCART with AC-Coupled Outputs Note: The video tilt or line time distortion is dominated by the AC-coupling capacitor. The value may need to be increased beyond 220F to obtain satisfactory operation in some applications. Minimize all trace lengths to reduce series inductances. If routing across a board, place device such that longer traces are at the inputs rather than the outputs. If using multiple, low-impedance DCcoupled outputs, special layout techniques may be employed to help dissipate heat. If a multilayer board is used, a large ground plane directly under the device helps reduce package case temperature. For dual-layer boards, an extended plane can be used. Worst-case additional die power due to DC loading can be estimated at (VCC2/4Rload) per output channel. This assumes a constant DC output voltage of VCC2. For 5V VCC with a dual DC video load, add 25/(4*75) = 83mW, per channel. Power Dissipation The FMS6363 output drive configuration must be considered when calculating overall power dissipation. Care must be taken not to exceed the maximum die junction temperature. The following example can be used to calculate the FMS6363's power dissipation and internal temperature rise. (1) TJ= TA+ Pd* JA where Pd= PCH1+ PCH2+ PCH3 and PCHx= VS * ICH- (VO2/RL) where VO = 2VIN+ 0.280V ICH = (ICC/ 3) + (VO/RL) VIN= RMS value of input signal ICC = 24mA VS= 5V RL= channel load resistance Board layout affects thermal characteristics. Refer to the Layout Considerations section for more information. (c) 2005 Fairchild Semiconductor Corporation FMS6363 * Rev. 1.0.3 www.fairchildsemi.com 6 FMS6363 -- Low-Cost, Three-Channel, 6th-Order High-Definition Video Filter Driver Typical Application DVD Player or STB +5V 0.1F 10F 75 1 R/Pr 8 220F 75 Video Cables 75 R/Pr IN1 OUT1 R SOURCE G/Y 2 FMS6363 8L SOIC IN2 OUT2 75 7 220F 75 G/Y Video SoC B/Pb R SOURCE 3 6 75 IN3 220F 75 B/Pb OUT3 R SOURCE 4 5 Vcc GND DAC Load Resistors R SOURCE = DAC load resistor // video SoC output resistance AC-Coupling Caps are Optional Figure 16. Typical Application Diagram (c) 2005 Fairchild Semiconductor Corporation FMS6363 * Rev. 1.0.3 www.fairchildsemi.com 7 FMS6363 -- Low-Cost, Three-Channel, 6th-Order High-Definition Video Filter Driver Physical Dimensions 5.00 4.80 3.81 8 5 A 0.65 B 6.20 5.80 4.00 3.80 1 4 1.75 5.60 PIN ONE INDICATOR (0.33) 1.27 0.25 M CBA 1.27 LAND PATTERN RECOMMENDATION 0.25 0.10 1.75 MAX C 0.10 0.51 0.33 0.50 x 45 0.25 C SEE DETAIL A 0.25 0.19 OPTION A - BEVEL EDGE R0.10 R0.10 GAGE PLANE 0.36 OPTION B - NO BEVEL EDGE NOTES: UNLESS OTHERWISE SPECIFIED A) THIS PACKAGE CONFORMS TO JEDEC MS-012, VARIATION AA, ISSUE C, B) ALL DIMENSIONS ARE IN MILLIMETERS. C) DIMENSIONS DO NOT INCLUDE MOLD FLASH OR BURRS. D) LANDPATTERN STANDARD: SOIC127P600X175-8M. E) DRAWING FILENAME: M08AREV13 8 0 0.90 0.406 SEATING PLANE (1.04) DETAIL A SCALE: 2:1 Figure 17. 8-Lead, Small Outline Integrated Circuit (SOIC) Package Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild's worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor's online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ (c) 2005 Fairchild Semiconductor Corporation FMS6363 * Rev. 1.0.3 www.fairchildsemi.com 8 FMS6363 -- Low-Cost, Three-Channel, 6th-Order High-Definition Video Filter Driver (c) 2005 Fairchild Semiconductor Corporation FMS6363 * Rev. 1.0.3 www.fairchildsemi.com 9 |
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