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FMS6690 Six Channel, 6th Order, SD/PS/HD Video Filter Driver Features Description Three Selectable Sixth-Order 15/32MHz (PS/HD) Filters Three Fixed Sixth-Order 8MHz (SD) Filters with MUXed Input Transparent Input Clamping The FMS6690 Low-Cost Video Filter (LCVF) is intended to replace passive LC filters and drivers with a low-cost th integrated device. Six 6 -order Butterworth filters provide improved image quality compared to typical passive solutions. The combination of low-power Standard Definition (SD), Progressive Scan (PS), and High Definition (HD) filters greatly simplifies DVD video output circuitry. Three channels offer fixed SD filters and feature an additional MUXed input, while the other three channels are selectable between PS and HD filters. The FMS6690 offers a fixed gain of 6dB. Low Power Single Video Load Drive (2VPP, 150, AV= 6dB) AC-or DC-Coupled Inputs AC-or DC-Coupled Outputs DC-Coupled Outputs Eliminate AC-Coupling Capacitors 5V Only Applications Cable and Satellite Set-Top Boxes The FMS6690 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) video loads. DC-coupling the outputs removes the need for output coupling capacitors. The input DC levels are offset approximately +280mV at the output. DVD Players HDTV Personal Video Recorders (PVR) Video On Demand (VOD) Ordering Information Part Number Operating Temperature Range Eco Status FMS6690MTC20X 0 to 70C RoHS Package 20-Lead Thin Shrink Outline Package (TSSOP) Packing Method 2500 Units in Tape and Reel For Fairchild's definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 www.fairchildsemi.com FMS6690 -- Six Channel, 6th Order, SD/SP/HD Video Filter Driver August 2009 Figure 1. Block Diagram (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver Block Diagram www.fairchildsemi.com 2 FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver Pin Configuration Figure 2. Pin Configuration Pin Definitions Pin # Name Type Description 1 SD IN1 Input SD Video Input, Channel 1 2 SD IN2 Input SD Video Input, Channel 2 3 SD IN3A Input SD Video Input, Channel 3A 4 SD IN3B Input SD Video Input, Channel 3B 5 VCC Input +5V Supply 6 FcSEL Input Selects Filter Corner Rrequency for Pins 7, 8, and 9; "0" = PS, "1" = HD 7 PS/HD IN1 Input Selectable PS or HD Video Input, Channel 1 8 PS/HD IN2 Input Selectable PS or HD Video Input, Channel 2 9 PS/HD IN3 Input Selectable PS or HD Video Input, Channel 3 10 N/C Input No Connect No Connect 11 N/C Input 12 PS/HD OUT3 Output Filtered PS or HD Video Output, Channel 3 13 PS/HD OUT2 Output Filtered PS or HD Video Output, Channel 2 14 PS/HD OUT1 Output 15 MUXSEL Input MUX Selects Between Channel 3A and 3B Inputs; 0 = A, 1 = B 16 GND Input Must Be Tied to Ground Must Be Tied to Ground Filtered PS or HD Video Output, Channel 1 17 GND Input 18 SD OUT3 Output Filtered SD Video Output, Channel 3 19 SD OUT2 Output Filtered SD Video Output, Channel 2 20 SD OUT1 Output Filtered SD Video Output, Channel 1 (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 www.fairchildsemi.com 3 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 VCC + 0.3 V 50 mA VIO Analog Digital I/O IOUT Output Current, Any One Channel, Do Not Exceed ESD Electrostatic Discharge Capability Human Body Model, JESD22-A114 9 Charged Device Model, JESD22-C101 2 kV Reliability Information Symbol TJ TSTG Parameter Min. Typ. Junction Temperature Storage Temperature Range -65 TL Lead Temperature, Soldering 10 Seconds JA Thermal Resistance, JEDEC Standard, Multi-Layer Test Board, Still Air Max. Unit +150 C +150 C +300 C 74 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 Parameter TA Operating Temperature Range VCC Supply Voltage Range Min. Typ. Max. Unit +70 C 5.00 5.25 V 0 4.75 FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver Absolute Maximum Ratings DC Electrical Characteristics Unless otherwise noted, TA=25C, VCC=5V, AC coupled with 0.1F, all outputs AC coupled with 220F into 150 loads, referenced to 400kHz. Symbol Parameter (1) Conditions ICC Supply Current VIN Video Input Voltage Range Referenced to GND if DC Coupled VIL VIH No Load (1) Digital Input Low Digital Input High Min. (1) Typ. Max. Units 60 80 mA 1.4 VPP FcSEL 0 0.8 V FcSEL 2.4 VCC V Note: 1. 100% tested at 25C. (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 www.fairchildsemi.com 4 Unless otherwise noted, TA=25C, VIN=1VPP, VCC=5V, all inputs AC coupled with 0.1F, all outputs AC coupled with 220F into 150 loads, referenced to 400kHz. Symbol AVSD f1dBSD Parameter Channel Gain Conditions (2) -1dB Flatness (2) (2) Min. Typ. All SD Channels 5.6 6.0 Max. Units 6.4 dB All SD Channels 5.20 7.15 MHz All SD Channels 6.5 8.0 MHz All SD Channels at f=27MHz 43 50 dB 0.7 % fcSD -3dB Bandwidth fSBSD Attenuation (Stopband Reject) DG Differential Gain All SD Channels DP Differential Phase All SD Channels 1.0 THD Distortion, Output VOUT=1.4VPP, 3.58MHz 0.35 % at 1MHz -54 dB NTC-7 Weighting, 100kHz to 4.2MHz 72 dB Delay from Input to Output, 4.5MHz 90 ns XTALKSD (2) Crosstalk (Ch-to-Ch) SNR Signal-to-Noise Ratio tpdSD Propagation Delay (3) Notes: 2. 100% tested at 25C. 3. SNR=20 * log (714mV / rms noise). Progressive Scan Electrical Characteristics Unless otherwise noted, TA=25C, VIN=1VPP, VCC=3.3V, RSOURCE=37.5, all inputs AC coupled with 0.1F, all outputs AC coupled with 220F into 150 loads, referenced to 400kHz. Symbol Parameter (4) (4) AVPS Channel Gain f1dBSD -1dB Flatness (4) fcPS -3dB Bandwidth fSBSD Attenuation (Stopband Reject) THD Total Harmonic Distortion, Output (All PS Channels) Crosstalk (Ch-to-Ch) XTALKPS Conditions SNR Signal-to-Noise Ratio tpdSD Propagation Delay (4) (5) Min. Typ. Max. Units All PS Channels 5.6 6.0 All PS Channels 12 14 MHz 6.4 dB All PS Channels 13 16 MHz All PS Channels at f=54MHz 37 45 dB VOUT=1.4VPP, 7MHz 0.35 % at 1MHz -53 dB Unweighted, 100kHz to 15MHz 66 dB Delay from Input to Output 47 ns FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver Standard-Definition Electrical Characteristics Notes: 4. 100% tested at 25C. 5. SNR=20 * log (714mV / rms noise). High-Definition Electrical Characteristics Unless otherwise noted, TA=25C, VIN=1VPP, VCC=5V, RSOURCE=37.5, all inputs AC coupled with 0.1F, all outputs AC coupled with 220F into 150 loads, referenced to 400kHz. Symbol Parameter (6) (6) AVHD Channel Gain f1dBHD -1dB Flatness Conditions (6) fcHD -3dB Bandwidth fSBHD Attenuation (Stopband Reject) THD (6) Min. Typ. Max. Units All HD Channels 5.6 6.0 All HD Channels 28 31 MHz 6.4 dB All HD Channels 30 34 MHz All HD Channels at f=74.25MHz 30 41 dB Output Distortion,(All PS Channels) VOUT=1.4VPP, 22MHz 0.9 % XTALKHD Crosstalk (Ch-to-Ch) at 1MHz -54 dB SNR Signal-to-Noise Ratio Unweighted, 100kHz to 30MHz 60 dB tpdHD Propagation Delay Delay from Input to Output 25 ns (7) Notes: 6. 100% tested at 25C. 7. SNR=20 * log (714mV / rms noise). (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 www.fairchildsemi.com 5 Unless otherwise noted TC=25C, VIN=1VPP, VCC=5V, RSOURCE=37.5, inputs AC coupled with 0.1F, all outputs AC coupled with 220F into150 loads. Figure 3. SD Gain vs. Frequency Figure 4. SD Flatness vs. Frequency Figure 5. PS Gain vs. Frequency Figure 6. PS Flatness vs. Frequency Figure 7. HD Gain vs. Frequency Figure 8. HD Flatness vs. Frequency (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver Typical Performance Characteristics www.fairchildsemi.com 6 Unless otherwise noted TC=25C, VIN=1VPP, VCC=5V, RSOURCE=37.5, inputs AC coupled with 0.1F, all outputs AC coupled with 220F into150 loads. Figure 9. SD Group Delay vs. Frequency Figure 10. Noise vs. Frequency Figure 11. PS Group Delay vs. Frequency Figure 12. SD Differential Gain FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver Typical Performance Characteristics Figure 13. HD Group Delay vs. Frequency (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 www.fairchildsemi.com 7 Functional Description The FMS6690 Low-Cost Video Filter (LCVF) provides 6dB gain (9dB optional, contact factory for further information) 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 14. 0.65 V YIN Driver YOUT 800k Figure 15. Input Clamp Circuit I/O Configurations For DC-coupled DAC drive with DC-coupled outputs, use the configuration in Figure 16. DVD or STB SoC DAC Output 0V - 1.4V LCVF Clamp Inactive 75 Figure 16. 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 17. FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver Applications Information 0V - 1.4V DVD or STB SoC DAC Output LCVF Clamp Active 0.1 75 Figure 14. Typical Voltage Levels The FMS6690 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 FMS6690 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 acceptable range. When the input is AC-coupled, the diode clamp sets the sync tip (or lowest voltage) just below ground. Figure 17. AC-Coupled Inputs, DC-coupled Outputs When the FMS6690 is driven by an unknown external source or a SCART with its own clamping circuitry, the inputs should be AC-coupled, shown in Figure 18. 0V - 1.4V External Video source must be AC-coupled. 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 15. (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 0.1 LCVF Clamp Active 75 75 Figure 18. SCART with DC-Coupled Outputs www.fairchildsemi.com 8 External Video source must be AC-coupled. 75 7.5M 0.1 LCVF Bias Input TJ= TA+ Pd* JA (1) where Pd= PCH1+ PCH2+ PCHx, 2 and PCHx= VS * ICH- (VO /RL) (2) where: VO = 2VIN+ 0.280V; ICH = (ICC/ 6) + (VO/RL); VIN= RMS value of input signal; ICC = 60mA; VS= 5V; and RL= channel load resistance. 75 Board layout affects thermal characteristics. Refer to the Layout Considerations section for more information. 500mV +/-350mV Output Considerations The FMS6690 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 FMS6690 has a 2x (6dB) gain, the output is typically connected via a 75-series back-matching resistor followed by the 75 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 then 1V. When AC-coupling the output, ensure that the 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. Figure 19. Biased SCART with DC-Coupled Outputs The same circuits can be used with AC-coupled outputs if desired. 0V - 1.4V DVD or STB SoC DAC Output LCVF Clamp Inactive 75 220 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 highestquality 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 FMS6690 output driver. The distance from device pin to place series termination resistor should be no greater than 0.1 inches. Figure 20. DC-Coupled Inputs, AC-coupled Outputs External video source must be AC-coupled. 75 0.1 7.5M LCVF Clamp Active 75 220 500mV +/-350mV FMS6690 -- Six Channel, 6th Order, SD/PS/HD 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. Figure 21. Biased SCART with AC-Coupled Outputs Note: 8. 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. Power Dissipation The FMS6690 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 FMS6690's power dissipation and internal temperature rise. (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 Figure 22. Distance from Device Pin to Series Termination Resistor www.fairchildsemi.com 9 Layout and supply bypassing play major roles in highfrequency performance and thermal characteristics. Fairchild offers a demonstration board, FMS6690DEMO, to use as a guide for layout and to aid in device testing and characterization. The FMS6690DEMO is a four-layer board with a full power and ground plane. Following this layout configuration provides the optimum performance and thermal characteristics. For optimum results, follow these steps as a basis for high-frequency layout: (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 Include 10F and 0.1F ceramic bypass capacitors. 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. For multi-layer boards, use a large ground plane to help dissipate heat. For 2 layer boards, use a ground plane that extends beyond the device by at least 0.5. Minimize all trace lengths to reduce series inductances. FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver Layout Considerations www.fairchildsemi.com 10 FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver Typical Application Figure 23. Typical Application Diagram (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 www.fairchildsemi.com 11 FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver Physical Dimensions Figure 24. 20-Lead Thin Shrink Outline Package (TSSOP) 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) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 www.fairchildsemi.com 12 FMS6690 -- Six Channel, 6th Order, SD/PS/HD Video Filter Driver (c) 2006 Fairchild Semiconductor Corporation FMS6690 * Rev. 1.0.3 www.fairchildsemi.com 13 ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor's product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. 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