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, 150Ω = 6δβ) AC or DC-coupled Inputs AC or DC-coupled Outputs DC-coupled Outputs Eliminate AC-coupling Description The outputs can drive AC-or DC-coupled single (150Ω) 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). 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). Capacitors 5V Only Robust 8kV ESD Protection Package SOIC-8 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 FMS6363 — Low-Cost, Three-Channel, 6th-Order, High-Definition Video Filter Driver March 2008 30MHz, 6th order Figure 1. Block Diagram Ordering Information Operating Temperature Range Package Packing Method Quantity FMS6363CS 0 to 70°C 8-Lead, Small Outline Integrated Circuit (SOIC) Rail 95 FMS6363CSX 0 to 70°C 8-Lead, Small Outline Integrated Circuit (SOIC) Reel 2500 Part Number All packages are lead free per JEDEC: J-STD-020B standard. © 2005 Fairchild Semiconductor Corporation FMS6363 • Rev. 1.0.3 www.fairchildsemi.com Pin Definitions Pin # Name IN1 1 8 OUT1 IN2 2 7 OUT2 IN3 3 6 OUT3 VCC 4 5 GND Figure 2. 8-Pin SOIC Type Description 1 IN1 Input Video input, channel 1 2 IN2 Input Video input, channel 2 3 IN3 Input Video input, channel 3 4 VCC Input +5V Supply 5 GND Input Ground 6 OUT3 Output Filtered output, channel 3 7 OUT2 Output Filtered output, channel 2 8 OUT1 Output Filtered output, channel 1 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 Parameter Min. Max. Unit V VCC DC Supply Voltage -0.3 6.0 -0.3 VIO Analog Digital I/O VCC + 0.3 V IOUT Output Current, Any One Channel, Do Not Exceed 50 mA ESD Human Body Model, JESD22-A114 8 kV Reliability Information Symbol TJ TSTG TL JA Parameter Min. Typ. Junction Temperature Storage Temperature Range -65 Lead Temperature, Soldering 10 Seconds Thermal Resistance, JEDEC Standard, Multi-layer Test Board, Still Air Max. Unit +150 °C +150 °C +300 °C 112.7 FMS6363 — Low-Cost, Three-Channel,6th-Order, High-Definition, Video Filter Driver Pin Configuration °C/W 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 Min. Operating Temperature Range 0 Supply Voltage Range 4.75 Input Source Resistance © 2005 Fairchild Semiconductor Corporation FMS6363 • Rev. 1.0.3 Typ. 5.00 Max. Unit 70 °C 5.25 V 300 Ω www.fairchildsemi.com 2 TA=25°C, VCC=5V, RSOURCE=37.5Ω, inputs AC coupled with 0.1µF, all outputs AC coupled with 220µF into150Ω loads, referenced to 400kHz; unless otherwise noted. Symbol Parameter Conditions (1) ICC Supply Current VIN Video Input Voltage Range Min. Typ. Max. Units No Load 22 30 mA Referenced to GND, if DC-coupled 1.4 VPP Note: 1. 100% tested at 25°C. AC Electrical Characteristics TA=25°C, VIN=1VPP, VCC=5V, RSOURCE=37.5Ω, inputs AC coupled with 0.1µF, all outputs AC coupled with 220µF into150Ω loads, referenced to 400kHz; unless otherwise noted. Symbol AV Parameter Conditions (2) Channel Gain (2) Min. Typ. Max. Units All Channels 5.8 6.0 6.2 dB 30 MHz 33 MHz f1dB -1dB Bandwidth All Channels 23 fC -3dB Bandwidth All Channels 30 fSB1 fSB2 Attenuation, Stopband Reject 6.5 All Channels at f=44.25MHz 14.5 (2) fSB3 All Channels at f=74.25MHz THD1 THD2 All Channels at f=37.125MHz (3) Output Distortion, All Channels 32 dB 36 VOUT=1.4VPP, 10MHz 0.2 VOUT=1.4VPP, 15MHz 0.4 % VOUT=1.4VPP, 22MHz 1.2 XTALK Crosstalk Channel-to-Channel At 1MHz -60 dB SNR1 SNR2 Signal-to-Noise Ratio, All Channels(4) Unweighed; 30MHz lowpass, 100KHz to 30HKz 65 dB Propagation Delay Delay from input to output 20 ns THD3 tpd Notes: 2. 100% tested at 25°C. 3. 1.4VPP active video. 4. SNR=20 • log (714mV/rms noise). © 2005 Fairchild Semiconductor Corporation FMS6363 • Rev. 1.0.3 FMS6363 — Low-Cost, Three-Channel,6th-Order, High-Definition, Video Filter Driver DC Electrical Characteristics www.fairchildsemi.com 3 TA=25°C, VCC=5V, RSOURCE=37.5Ω, inputs AC coupled with 0.1µF, all outputs AC coupled with 220µF into150Ω loads, referenced to 400kHz; unless otherwise noted. 12 15 1 0 Gain (dB) -6 -12 Mkr Frequency Gain Ref 400kHz 6dB 1 10 1 28.847MHz -1dB BW 2 33.11MHz -3dB BW 3 74.25MHz -38.11dB 5 Delay (ns) 2 6 -18 -24 -30 0 -5 -10 -36 3 -15 -42 1 = 32MHz (10.32ns) -48 400kH 20 40 60 80 100 120 -20 400kH 10 140 20 Frequency (MHz) 30 40 50 60 70 80 90 Frequency (MHz) Figure 3. Frequency Response Figure 4. Group Delay vs. Frequency -20 -30 Using 0.1μF and 0.01μF • Bypass Capacitors as suggested -30 -40 PSRR (dB) PSRR (dB) -40 -50 -60 -50 -60 -70 -70 -80 -80 -90 -90 0.1 10 1 30 0.1 Frequency (MHz) Figure 5. PSRR vs. Frequency; No Bypass Caps 10 30 Figure 6. PSRR vs. Frequency; Bypass Caps 2 SYNC Tip Compression (mV) 1 Frequency (MHz) FMS6363 — Low-Cost, Three-Channel,6th-Order, High-Definition, Video Filter Driver Typical Performance Characteristics 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 © 2005 Fairchild Semiconductor Corporation FMS6363 • Rev. 1.0.3 www.fairchildsemi.com 4 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. 0.65 V YIN Driver 1.02V YOUT 800kΩ 0.32V 0.02V V IN 2.28V 0.88V 0.28V Figure 9. Input Clamp Circuit Driven by: DC-Coupled DAC Outputs o r AC-Coupled and Clamped Y, R, G, B, CV I/O Configurations For DC-coupled DAC drive with DC-coupled outputs, use the configuration in Figure 10. V OUT There will be a 280mV offset from the DC input level to the DC output level. Vout = 2 * Vin + 280mV 0V - 1.4V DVD or STB SoC DAC Output 0.85V LCVF Clamp Inactive 75Ω 0.5V 0.15V V IN Figure 10. DC-coupled Inputs and Outputs 1.98V 1.28V 0.58V 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. Driven by: DC-Coupled DAC Outputs AC-Coupled and Biased U, V, Pb, Pr, C V OUT 0V - 1.4V DVD or STB SoC DAC Output 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. LCVF Clamp Active 0.1µ 75Ω FMS6363 — Low-Cost, Three-Channel,6th-Order, High-Definition, Video Filter Driver Applications Information 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. 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. 0V - 1.4V 0.1µ External Video source must be AC-coupled. LCVF Clamp Active 75Ω 75Ω Figure 12. SCART with DC-coupled Outputs © 2005 Fairchild Semiconductor Corporation FMS6363 • Rev. 1.0.3 www.fairchildsemi.com 5 External Video source must be AC-coupled. 75Ω Layout Considerations Layout and supply bypassing play major roles in highfrequency performance and thermal characteristics. 7.5MΩ 0.1µ LCVF Bias Input 75Ω For optimum results, follow the steps below as a basis for high-frequency layout: 500mV +/-350mV Figure 13. Biased SCART with DC-coupled Outputs 0V - 1.4V DVD or STB SoC DAC Output LCVF Clamp Inactive 75Ω 75Ω LCVF Clamp Active 75Ω Place the 0.1μF 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. Place the 10μF capacitor within 0.75 inches of the power pin. 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. 7.5MΩ 0.1µ Include 10µF and 0.1μF ceramic bypass capacitors 220µ Figure 14. DC-coupled Inputs, AC-coupled Outputs External video source must be AC-coupled. 220µ 500mV +/-350mV Figure 15. Biased SCART with AC-Coupled Outputs For dual-layer boards, an extended plane can be used. Note: The video tilt or line time distortion is dominated by the AC-coupling capacitor. The value may need to be increased beyond 220µF to obtain satisfactory operation in some applications. 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. FMS6363 — Low-Cost, Three-Channel,6th-Order, High-Definition, Video Filter Driver The FMS6363 is specified to operate with output currents typically less than 50mA, more than sufficient for a single (150Ω) 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. 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 800kΩ ±20%, so the external resistance should be 7.5MΩ to set the DC level to 500mV. If a pull-up resistance of less than 7.5MΩ desired, add an external pull-down such that the DC input level is set to 500mV. (1) TJ= TA+ Pd• ΘJA 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. © 2005 Fairchild Semiconductor Corporation FMS6363 • Rev. 1.0.3 www.fairchildsemi.com 6 DVD Player or STB +5V 0.1µF 10µF 1 R/Pr IN1 R SOURCE Video SoC 220µF 75Ω 220µF OUT1 FMS6363 8L SOIC 2 G/Y 75Ω IN2 G/Y 7 OUT2 75Ω 75Ω 3 220µF B/Pb 6 IN3 OUT3 Vcc GND 75Ω R SOURCE 4 5 DAC Load Resistors AC-Coupling Caps are Optional R SOURCE = DAC load resistor // video SoC output resistance Figure 16. Typical Application Diagram © 2005 Fairchild Semiconductor Corporation FMS6363 • Rev. 1.0.3 R/Pr 75Ω R SOURCE B/Pb 75Ω Video Cables 8 FMS6363 — Low-Cost, Three-Channel, 6th-Order High-Definition Video Filter Driver Typical Application www.fairchildsemi.com 7 5.00 4.80 A 0.65 3.81 8 5 B 6.20 5.80 PIN ONE INDICATOR 1.75 4.00 3.80 1 5.60 4 1.27 (0.33) 0.25 M 1.27 C B A LAND PATTERN RECOMMENDATION 0.25 0.10 SEE DETAIL A 1.75 MAX 0.25 0.19 C 0.10 0.51 0.33 0.50 x 45° 0.25 R0.10 C OPTION A - BEVEL EDGE GAGE PLANE R0.10 OPTION B - NO BEVEL EDGE 0.36 NOTES: UNLESS OTHERWISE SPECIFIED 8° 0° 0.90 0.406 FMS6363 — Low-Cost, Three-Channel, 6th-Order High-Definition Video Filter Driver Physical Dimensions 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 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/ © 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 © 2005 Fairchild Semiconductor Corporation FMS6363 • Rev. 1.0.3 www.fairchildsemi.com 9