FMS6364A Low-Cost Four-Channel Standard Definition (SD) & High (HD) Definition Video Filter Driver Features Description The FMS6364A Low-Cost Video Filter (LCVF) is intended to replace passive LC filters and drivers with a th low-cost integrated device. Three 7 -order filters th provide HD quality and a single 6 -order SD channel provides compatibility. The FMS6364A 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 the Application Information section for details). th Three 7 -Order 32MHz (HD) Filters th One 6 -Order 8MHz (SD) Filter Drives Single AC- or DC-Coupled Video Loads (150Ω) Drives Dual AC- or DC-Coupled video Loads (75Ω) Transparent Input Clamping Single Supply: 3.3V – 5.0V AC- or DC-Coupled Inputs and Outputs DC-Coupled Output Eliminates AC-Coupling Capacitor Robust 9kV ESD Protection Lead-Free TSSOP-14 Package Applications The outputs can drive AC- or DC-coupled single (150Ω) or dual (75Ω) video loads. DC coupling the outputs removes the need for large output coupling capacitors. The input DC levels are offset approximately +280mV at the output (see the Application Information section). Related Resources Cable Set-Top Boxes Satellite Set-Top Boxes DVD Players HDTV Personal Video Recorders (PVR) Video On Demand (VOD) AN-8002 – FMS6418B 4:2:2 Application Note AN-6024 – FMS6xxx Product Series; Understanding Analog Video Signal Clamps, Bias, DC Restore, and AC- or DC-Coupling Methods AN-6041 – PCB Layout Considerations for Video Filter/Drivers Ordering Information Part Number Operating Temperature Range Eco Status FMS6364AMTC14X -40°C to +85°C RoHS Packing Method Package 14-Lead TSSOP, JEDEC MO-153, 4.4mm Wide 2500 Units per Reel For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver March 2010 www.fairchildsemi.com IN1 Clamp IN2 Bias IN3 Bias IN4 Clamp SD HD HD HD 6d B OUT1 6d B OUT2 6d B OUT3 6d B OUT4 Figure 1. Block Diagram Pin Configuration Figure 2. Pin Configuration Pin Definitions Pin# Name Type Description 1 IN1 Input Video Input Channel SD 2 GND Input Device Ground Connection 3 IN2 Input Video Input Channel HD (Pr) 4 IN3 Input Video Input Channel HD (Pb) 5 IN4 Input Video Input Channel HD (Y) 6 NC 7 Vcc Power Positive Power Supply 8 GND Ground Device Ground Connection No Connection 9 NC 10 OUT4 Output No Connection Filtered Output Channel HD (Y) 11 OUT3 Output Filtered Output Channel HD (Pb) 12 OUT2 Output Filtered Output Channel HD (Pr) 13 GND Ground Device Ground Connection 14 OUT1 Output Filtered Output Channel SD © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver Block Diagram www.fairchildsemi.com 2 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 VS VIO VOUT Parameter Min. Max. Unit DC Supply Voltage -0.3 6.0 V Analog and Digital I/O -0.3 VCC+0.3 V 50 mA Maximum Output Current, Do Not Exceed Reliability Information Symbol TJ TSTG Parameter Min. Typ. Max. Unit 150 °C 150 °C 300 °C Junction Temperature Storage Temperature Range -65 TL Lead Temperature (Soldering, 10 Seconds) ΘJA Thermal Resistance, JEDEC Standard, Multilayer Test Boards, Still Air 115 °C/W Electrostatic Discharge Protection Symbol Parameter Condition Minimum Level Unit HBM Human Body Model ESD IEC61340-3-1:2002 Level 2 9 kV CDM Charged Device Model ESD JESD22-C101-A Level III 2 kV 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 Parameter TA Operating Temperature Range VCC Supply Voltage Range © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 Min. Typ. -40 3.135 3.300 Max. Unit 85 °C 5.250 V FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver Absolute Maximum Ratings www.fairchildsemi.com 3 Unless otherwise noted, TA=25°C, VCC=3.3V, RS=37.5Ω, all inputs are AC coupled with 0.1µF, and all output AC coupled with 220µF into 150Ω load. Symbol Parameter Conditions Min. Typ. Max. Units 3.135 3.30 5.25 V Supply VS Supply Voltage Range ICC Quiescent Supply Current Vin PSRR VS Range VS=+3.3V, No Load, EN=LOW 50 65 mA VS=+5.25V, No Load, EN=LOW 55 76 mA Video Input Voltage Range Referenced to GND if DC Coupled 1.4 Vpp Power Supply Rejection Ratio DC (All Channels) -50 dB (1) Note: 1. 100% tested at TA=25°C. Standard-Definition Electrical Characteristics Unless otherwise noted, TA=25°C, VIN=1VPP, VCC=5V, RSOURCE=37.5Ω, all inputs AC coupled with 0.1µF, all outputs AC coupled with 220µF into 150Ω loads, and referenced to 400kHz. Symbol Parameter Conditions AVSD (2) Channel Gain All SD Channels f01dBSD -0.1dB Flatness All SD Channels f1dBSD (2) fcSD -1dB Flatness -3dB Bandwidth (2) (2) Min. Typ. Max. Units 5.8 6.0 6.2 dB 5 MHz All SD Channels 7 8 MHz All SD Channels 8 9 MHz 45 60 dB 0.3 % fSBSD Attenuation (Stopband Reject) All SD Channels at f=27MHz DG Differential Gain All SD Channels DP Differential Phase All SD Channels 0.6 ° Total Harmonic Distortion, Output VOUT=1.4VPP, 3.58MHz 0.35 % Crosstalk (Channel-to-Channel) 1MHz -74 dB THD XTALKSD SNR Signal-to-Noise Ratio NTC-7 weighting, 100kHz to 4.2MHz 76 dB tpdSD Propagation Delay Delay from input to output, 4.5MHz 90 ns CLGSD Chroma Luma Gain f=3.58MHz (ref to SDIN at 400kHz) CLDSD Chroma Luma Delay f=3.58MHz (ref to SDIN at 400kHz) (3) (2) 95 100 105 % 5.5 ns tON Enable Time 1 µs tOFF Disable Time 1 µs Notes: 2. 100% tested at TA=25°C. 3. SNR=20 • log (714mV / rms noise). © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver DC Electrical Characteristics www.fairchildsemi.com 4 Unless otherwise noted, TA=25°C, VCC=3.3V, RS=37.5Ω, all inputs are AC coupled with 0.1µF, and all outputs AC coupled with 220µF into 150Ω load. Symbol AV Parameter Channel Gain(4) Conditions Active Video Input Range=1VPP (4) RSOURCE=75Ω, RL=150Ω BW -1.0dB -1.0 dB Bandwidth (4) RSOURCE=75Ω, RL=150Ω BW 3.0dB -3.0 dB Bandwidth(4) RSOURCE=75Ω, RL=150Ω BW 0.5dB ±0.5dB Bandwidth Att37.125M Att44.25M Att74.25M Normalized Stopband Attenuation(4) Att78M THD1 THD2 THD3 Output Distortion (All Channels) Min. Typ. Max. Units 5.8 6.0 6.2 dB 24 MHz 28 30 MHz 32 34 MHz RSOURCE=75Ω, f=37.325MHz 6.5 dB RSOURCE=75Ω, f=44.25MHz 14.5 dB RSOURCE=75Ω, f=74.25MHz 40 44 dB RSOURCE=75Ω, f=78MHz 42 46 dB f=10 MHz ; VOUT=1.4Vpp 0.4 f=15 MHz ; VOUT=1.4Vpp 0.5 f=22 MHz ; VOUT=1.4Vpp 0.5 % Xtalk Crosstalk (Channel-to-Channel) f=1.00 MHz ; VOUT=1.4Vpp -70 dB SNR Peak Signal to RMS Noise Unweighted: 30MHz Lowpass, 100kHz to 30MHz 70 dB Propagation Delay Delay from Input to Output; 100KHz to 26MHz 25 ns tpd Note: 4. 100% tested at 25°C. © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver High-Definition Electrical Characteristics www.fairchildsemi.com 5 Unless otherwise noted, TA = 25°C, VCC = 3.3V, RS = 37.5Ω, and AC-coupled output into 150Ω load. 1.00 0.00 ‐1.00 ‐25.00 ‐2.00 ‐35.00 ‐3.00 Attenuation ‐5.00 ‐15.00 ‐45.00 ‐55.00 ‐65.00 ‐75.00 ‐4.00 ‐5.00 ‐6.00 ‐7.00 0.10 0.85 1.60 2.35 3.10 3.85 4.60 5.34 6.09 6.84 7.59 8.34 9.09 9.84 10.59 11.34 12.09 0.10 3.35 6.59 9.84 13.09 16.33 19.58 22.83 26.07 29.32 32.57 35.81 39.06 42.31 45.55 48.80 Attenuation 5.00 Frequency Frequency Figure 3. SD Frequency Response Figure 4. SD Flatness 5.00 ‐5.00 ‐15.00 Attenuation ‐35.00 ‐45.00 ‐55.00 0.10 3.35 6.59 9.84 13.09 16.33 19.58 22.83 26.07 29.32 32.57 35.81 39.06 42.31 45.55 48.80 ‐65.00 0.10 6.59 13.09 19.58 26.07 32.57 39.06 45.55 52.05 58.54 65.04 71.53 78.02 84.52 91.01 97.50 Attenuation ‐25.00 2.00 0.00 ‐2.00 ‐4.00 ‐6.00 ‐8.00 ‐10.00 ‐12.00 ‐14.00 ‐16.00 ‐18.00 ‐20.00 Frequency Frequency Figure 5. HD Frequency Response Figure 6. HD Flatness FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver Typical Performance Characteristics Figure 7. Differential Gain © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 www.fairchildsemi.com 6 Unless otherwise noted, TA = 25°C, VCC = 3.3V, RS = 37.5Ω, and AC-coupled output into 150Ω load. Figure 8. Differential Phase Figure 10. Chroma/Luma Gain & Delay Figure 9. SNR vs Frequency FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver Typical Performance Characteristics Figure 11. Typical Application © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 www.fairchildsemi.com 7 Application Circuits 75Ω The FMS6364A 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 the diagram below: Video Cables LOAD2 (optional) 75Ω 0.65 V YIN Driver YOUT LOAD1 75Ω Video Cables 75Ω 1.0 -> 1.02V Figure 13. 0.65 -> 0.67V I/O Configurations 0.3 -> 0.32V 0.0 -> 0.02V For a DC-coupled DAC drive with DC-coupled outputs, use the configuration in Figure 14. V IN 2.28V 1.58V 0.88V 0.28V Input Clamp Circuit V OUT 0V - 1.4V Driven by: DC-Coupled DAC Outputs AC-Coupled and Clamped Y, CV, R, G, B DVD or STB SoC DAC Output LCVF Clamp Inactive 75W There is a 280mV offset from the DC input level to the DC output level. V OUT = 2 * V IN + 280mV. Figure 14. DC-Coupled Inputs and Outputs 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 15. 0.85V 0.5V 0.15V 0V - 1.4V V IN 1.98V DVD or STB SoC DAC Output Driven by: AC-Coupled and Biased U, V, Pb, Pr, C 1.28V 0.58V 0.1μ LCVF Clamp Active 75Ω V OUT Figure 12. Typical Voltage Levels Figure 15. AC-Coupled Inputs, DC-Coupled Outputs The FMS6364A 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 FMS6364A without an AC-coupling capacitor. When the input is AC-coupled, the diode clamp sets the sync tip (or lowest voltage) just below ground. The worst-case sync tip compression due to the clamp cannot exceed 7mV. The input level set by the clamp, combined with the internal DC offset, keeps the output within its acceptable range. When the FMS6364A is driven by an unknown external source or a SCART switch with its own clamping circuitry, the inputs should be AC coupled as shown in Figure 16. 0V - 1.4V External video source must be AC coupled LCVF Clamp Active 75Ω 75Ω For symmetric signals like Chroma, U, V, Pb, and Pr; the average DC bias is fairly constant and the inputs can be AC coupled. 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 13: © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 0.1μ Figure 16. FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver Application Information SCART with DC-Coupled Outputs www.fairchildsemi.com 8 Power Dissipation The FMS6364A 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 equations can be used to calculate the power dissipation and internal temperature rise. The same circuits can be used with AC-coupled outputs if desired. 0V - 1.4V 0.1μ DVD or STB SoC DAC Output LCVF Clamp Active 220μ 75Ω TJ = TA + PD • LCVF Clamp Active 75Ω PD = PCH1 + PCH2 + PCH3 and (2) PCHx = VCC • ICH - (VO2/RL) (3) where: 0V - 1.4V 0.1μ (1) where: Figure 17. AC-Coupled Inputs and Outputs External video source must be AC coupled JA 220μ VO = 2VIN + 0.280V (4) ICH = (ICC/3) + (VO/RL) (5) VIN = RMS value of input signal ICC = 50mA 75Ω VCC = 3.3V RL = channel load resistance. Board layout can also affect thermal characteristics. Refer to the Layout Considerations section for details. Figure 18. Biased SCART with AC-Coupled Outputs Note: 5. 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. © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 The FMS6364A is specified to operate with output currents typically less than 50mA, more than sufficient for a dual (75Ω) video load. Internal amplifiers are current limited to a maximum of 100mA and should withstand brief-duration short-circuit conditions. This capability is not guaranteed. FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver The same method can be used for biased signals. The Pb and Pr channels are biased to set the DC level to 500mV. www.fairchildsemi.com 9 General layout and supply bypassing play a major role in high-frequency performance and thermal characteristics. Fairchild offers a demonstration board to guide layout and aid device evaluation. The demo board is a four-layer board with full power and ground planes. Following this layout configuration provides optimum performance and thermal characteristics for the device. For the best results, follow the steps and recommended routing rules listed below. coupling capacitor of choice passes the lowest frequency content in the video signal and that line time distortion (video tilt) is kept as low as possible. The selection of the coupling capacitor is a function of the subsequent circuit input impedance and the leakage current of the input being driven. To obtain the highest quality output video signal, the series termination resistor must be placed as close to the device output pin as possible. This greatly reduces the parasitic capacitance and inductance effect on the output driver. The distance from device pin to the series termination resistor should be no greater than 0.5 inches. Recommended Routing/Layout Rules Do not run analog and digital signals in parallel. Do not run traces on top of the ground plane. Include 0.01μF and 0.1μF ceramic power supply bypass capacitors. Place the 0.1μF capacitor within 0.1 inches of the device power pin. Use separate analog and digital power planes to supply power. Run no traces over ground/power splits. Avoid routing at 90-degree angles. Minimize clock and video data trace length differences. Place the 0.01μF capacitor within 0.75 inches of the device power pin. For multi-layer boards, use a large ground plane to help dissipate heat. For two-layer boards, use a ground plane that extends beyond the device body at least 0.5 inches on all sides. Include a metal paddle under the device on the top layer. Minimize all trace lengths to reduce series inductance. Place a 75Ω series resistor within 0.5 inches of the output pin to isolate the output driver from board parasitics. 0.5” Figure 19. Recommended Resistor Placement Thermal Considerations Since the interior of systems such as set-top boxes, TVs, and DVD players are at +70ºC; consideration must be given to providing an adequate heat sink for the device package for maximum heat dissipation. When designing a system board, determine how much power each device dissipates. Ensure that devices of high power are not placed in the same location, such as directly above (top plane) or below (bottom plane), each other on the PCB. PCB Thermal Layout Considerations Output Considerations The FMS6364A outputs are DC offset from the input by 150mV; therefore VOUT = 2 • VIN DC+150mV. This offset is required to obtain optimal performance from the output driver and is held at the minimum value to decrease the standing DC current into the load. Since the FMS6364A has a 2x (6dB) gain, the output is typically connected via a 75Ω-series back-matching resistor followed by the 75Ω video cable. Because of the inherent divide by two of this configuration, the blanking level at the load of the video signal is always less than 1V. When AC coupling the output, ensure that the © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 Understand the system power requirements and environmental conditions. Maximize thermal performance of the PCB. Make the PCB as thin as possible by reducing FR4 thickness. Use vias in the power pad to tie adjacent layers together. Remember that baseline temperature is a function of board area, not copper thickness. Consider modeling techniques a first-order approximation. Consider using 70μm of copper for high-power designs. FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver Layout Considerations www.fairchildsemi.com 10 0.65 0.43 TYP 1.65 6.10 0.45 12.00°TOP & BOTTOM R0.09 min A. CONFORMS TO JEDEC REGISTRATION MO-153, VARIATION AB, REF NOTE 6 B. DIMENSIONS ARE IN MILLIMETERS C. DIMENSIONS ARE EXCLUSIVE OF BURRS, MOLD FLASH, AND TIE BAR EXTRUSIONS D. DIMENSIONING AND TOLERANCES PER ANSI Y14.5M, 1982 E. LANDPATTERN STANDARD: SOP65P640X110-14M F. DRAWING FILE NAME: MTC14REV6 1.00 R0.09min Figure 20. 14-Lead TSSOP, JEDEC MO-153, 4.4mm Wide 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. FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver Physical Dimensions Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1 www.fairchildsemi.com 11 FMS6364A — Low-Cost Four-Channel Standard Definition (SD) & High Definitions (HD) Video Filter Driver 12 www.fairchildsemi.com © 2010 Fairchild Semiconductor Corporation FMS6364A • Rev. 3.0.1