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| NCS2553 3-Channel Video Amp with Standard Definition Reconstruction Filters Description The NCS2553 is a 3-channel high speed video amplifier with 6th order butterworth standard definition reconstruction filter. All three channels can accommodate either all component and RGB video signals or composite and S-Video signals. All channels can accept DC or AC coupled signals. If AC coupled, the internal clamps are employed. The outputs can drive both AC and DC coupled 150 W loads. It is designed to be compatible with most digital-to-analog converters (DAC) embedded in most video processors. Feature http://onsemi.com MARKING DIAGRAM 1 SOIC-8 NB D SUFFIX CASE 751 A L Y W G 8 N2553 ALYW G 8 1 * * * * * * * * * * * * * Three 6th Order Standard Definition 8 MHz Filters Internally Fixed Gain = 6 dB AC- or DC- Coupled Inputs AC- or DC- Coupled Outputs Integrated Level Shifter Operating Voltage +5 V Available in a SOIC-8 Package These are Pb-Free Devices Digital Set-Top Box DVD / Video Players and Related SD-TV Video On Demand (VOD) Video Recorders = Assembly Location = Wafer Lot = Year = Work Week = Pb-Free Package PINOUT SD IN1 1 SD IN2 2 SD IN3 3 VCC 4 NCS2553 SOIC-8 8 SD OUT1 7 SD OUT2 6 SD OUT3 5 GND Applications ORDERING INFORMATION Device NCS2553DG NCS2553DR2G Package SOIC-8 (Pb-Free) SOIC-8 (Pb-Free) Shipping 98 Units / Rail 2500 / Tape & Reel For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. (c) Semiconductor Components Industries, LLC, 2008 December, 2008 - Rev. 4 1 Publication Order Number: NCS2553/D NCS2553 SD IN1 Transparent Clamp 8 MHz, 6th Order SD IN2 Transparent Clamp 8 MHz, 6th Order 6dB SD OUT2 6dB SD OUT1 SD IN3 Transparent Clamp 8 MHz, 6th Order 6dB SD OUT3 Figure 1. Block Diagram PIN FUNCTION AND DESCRIPTION Pin 1 2 3 4 5 6 7 8 Name IN1 IN2 IN3 VCC GND OUT3 OUT2 OUT1 Type Input Input Input Power GND Output Output Output Description Video Input 1 for Video Signal featuring a frequency bandwidth compatible with Standard Definition Video (8 MHz) - Channel 1 Video Input 2 for Video Signal featuring a frequency bandwidth compatible with Standard Definition Video (8 MHz) - Channel 2 Video Input 3 for Video Signal featuring a frequency bandwidth compatible with Standard Definition Video (8 MHz) - Channel 3 Device Power Supply Voltage: +5 V Connected to Ground SD Video Output 3 - Channel 3 SD Video Output 2 - Channel 2 SD Video Output 1 - Channel 1 ATTRIBUTES Characteristics ESD Human Body Model Machine Model All Pins (Note 1) Pins 1 to 5 (Note 2) All Output Pins (Note 2) Value 8 kV 400 V 800 V Level 1 UL 94 V-0 @ 0.125 in Moisture Sensitivity (Note 3) Flammability Rating - Oxygen Index: 28 to 34 1. Human Body Model (HBM): R = 1500 W, C = 100 pF 2. Machine Model (MM) 3. For additional information, see Application Note AND8003/D. http://onsemi.com 2 NCS2553 MAXIMUM RATINGS Parameter Power Supply Voltages Input Voltage Range Input Differential Voltage Range Output Current Maximum Junction Temperature (Note 4) Operating Ambient Temperature Storage Temperature Range Power Dissipation Thermal Resistance, Junction-to-Air Symbol VCC VI VID IO TJ TA Tstg PD RqJA Rating -0.35 v VCC v 5.5 -0.3 v VI v VCC VI v VCC 50 150 -40 to +85 -60 to +150 (See Graph) 112.7 Unit Vdc Vdc Vdc mA C C C mW C/W Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 4. Power dissipation must be considered to ensure maximum junction temperature (TJ) is not exceeded. Maximum Power Dissipation 1800 POWER DISSIPATION (mW) 1600 1400 1200 1000 800 600 400 200 0 -40 -30-20-10 0 10 20 30 40 50 60 70 80 90100 TEMPERATURE (C) The maximum power that can be safely dissipated is limited by the associated rise in junction temperature. For the plastic packages, the maximum safe junction temperature is 150C. If the maximum is exceeded momentarily, proper circuit operation will be restored as soon as the die temperature is reduced. Leaving the device in the "overheated" condition for an extended period can result in device burnout. To ensure proper operation, it is important to observe the de-rating curves. Figure 2. Power Dissipation vs Temperature http://onsemi.com 3 NCS2553 DC ELECTRICAL CHARACTERISTICS (VCC = +5.0 V, TA = 25C, 0.1 mF AC coupled inputs, Rsource = 37.5 W, 220 mF AC coupled outputs into 150 W load, referenced to 400 kHz, unless otherwise specified) Symbol VCC ICC VIN PSRR Characteristics Supply Voltage Range Power Supply Current Input Common Mode Voltage Range Power Supply Rejection No Load Referenced to GND if DC-Coupled DC (All Channels) GND -50 Conditions Min 4.75 Typ 5.0 23 Max 5.25 30 1.4 dB Unit V mA NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are applied individually under normal operating conditions and not valid simultaneously. AC ELECTRICAL CHARACTERISTICS (VCC = +5.0 V, TA = 25C, 0.1 mF AC coupled inputs, Rsource = 37.5 W,220 mF AC coupled outputs into 150 W load, referenced to 400 kHz, unless otherwise specified) Symbol AVOL BW Characteristics Voltage Gain (Note 5) Low Pass Filter Bandwidth Conditions VIN = 1 V (All Channels) -1 dB (Note 6) -3 dB AR dG dq THD Xtalk SNR Tpd DGD Stop-Band Attenuation (Rejection) Differential Gain Differential Phase Total Harmonic Distortion Channel-to-Channel Crosstalk Signal-to-Noise Ratio Propagation Delay Group Delay Variation from 100 kHz to 8 MHz VOUT = 1.8 VPP @ 1 MHz VOUT = 1.8 VPP @ 1 MHz NTSC-7, 100 kHz to 4.2 MHz (Note 7) Input-to-Output, 4.5 MHz at 27 MHz Min 5.8 5.5 Typ 6.0 7.2 9.0 45 0.3 0.6 0.4 -60 75 60 27 Max 6.2 Unit dB MHz MHz dB % _ % dB dB nsec ns NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are applied individually under normal operating conditions and not valid simultaneously. 5. 100% of tested IC fit to the bandwidth tolerance. 6. Guaranteed by design and characterization. 7. SNR = 20 x log (714 mV/RMS Noise) http://onsemi.com 4 NCS2553 TYPICAL CHARACTERISTICS VCC = +5.0 V, Rsource = 37.5 W, TA = 25C, 0.1 mF AC-coupled inputs, 220 mF AC-coupled outputs into 150 W referenced to 400 kHz, all channels, unless otherwise specified 20 10 0 -10 GAIN (dB) -20 -30 -40 -50 -60 -70 -80 0.01 Vin = 4 dBm Zout = 150 W 0.1 6 dB 6.7 MHz, -0.5 dB 7.2 MHz, -1 dB -35 9.0 MHz, -3 dB CROSSTALK (dB) -40 -45 -50 -55 -60 -65 -70 -75 -80 100 -85 100k Vin = 4 dBm Zout = 150 W 1M FREQUENCY (Hz) 8M 1 MHz, -60 dB 6.7 MHz, -43 dB 27 MHz Stop-band Rejection = 46 dB (6 dB - (-40 dB)) 1 FREQUENCY (MHz) 10 Figure 3. Frequency Response 110 100 INPUT VOLTAGE (V) GROUP DELAY (ns) 90 80 70 60 50 40 30 20 10 100k Vin = 4 dBm Zout = 150 W 1M FREQUENCY (Hz) 10M 30M 1.75 1.5 1.25 1.0 0.75 0.5 0.25 0 -0.75 0 50 Figure 4. Channel-to-Channel Crosstalk 3.0 2.0 1.6 79 ns Output 1.2 0.8 0.4 0 OUTPUT VOLTAGE (V) 2.6 Input -0.4 100 150 200 250 300 350 400 450 500 TIME (ns) Figure 5. Group Delay -45 -50 -55 -60 PSRR (dB) -70 -75 -80 -85 -90 -95 100k Vin = -22 dBm Zout = 150 W 1M FREQUENCY (Hz) 10M 50M PSRR (dB) -65 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 100k Figure 6. Propagation Delay Vin = -22 dBm Zout = 150 W 1M FREQUENCY (Hz) 10M 50M Figure 7. PSRR vs Frequency (No Bypass Capacitor) Figure 8. PSRR vs. Frequency (Bypass Capacitor) http://onsemi.com 5 NCS2553 TYPICAL CHARACTERISTICS VCC = +5.0 V, Rsource = 37.5 W, TA = 25C, 0.1 mF AC-coupled inputs, 220 mF AC-coupled outputs into 150 W referenced to 400 kHz, all channels, unless otherwise specified 6.4 6.2 6 5.8 5.6 5.4 0.01 400 kHz, 6.04 dB 3.8 MHz, 6.19 dB GAIN (dB) 5.5 MHz, 6.00 dB Vin = 4 dBm Zout = 150 W 6.7 MHz, 5.5 dB 0.1 1 FREQUENCY (Hz) 10 Figure 9. Gain Flatness 0.5 0.45 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 0.04 0 1 2 3 4 5 6 HARMONIC NUMBERS 0.18 0.35 0.3 DIFFERENTIAL PHASE () DIFFERENTIAL GAIN (%) 0.4 1 0.81 0.8 0.61 0.6 0.4 0.2 0 0 1 2 3 4 5 6 0.44 0.6 0.46 1.2 0.96 HARMONIC NUMBERS Figure 10. Differential Gain (NTSC 5 Steps Input Signal) 120 105 90 GROUP DELAY (ns) 75 60 45 30 15 0 Group Delay Gain Figure 11. Differential Phase (NTSC 5 Steps Input Signal 20 10 0 -10 -30 -40 -50 -60 -70 -80 40M GAIN (dB) -20 -15 -30 20k 100k 1M FREQUENCY (Hz) 10M Figure 12. Normalized Frequency Response and Group Delay vs. Frequency http://onsemi.com 6 NCS2553 APPLICATIONS INFORMATION The NCS2553 triple video driver has been optimized for Standard Definition video applications covering the requirements of the CVBS, S-Video, 480i/525i & 576i/625i standards. All the 3 channels feature the same specifications and similar behaviors guaranteed by a high channel-to- channel crosstalk isolation (down to 60 dB at 1 MHz). Each channel provides an internal voltage-to-voltage gain of 2 from its input to its output reducing the number of external components usually needed in the case of some discrete approaches (using stand-alone op amps). An internal level shifter is employed shifting up the output voltage by adding an offset of about 280 mV. This avoids sync pulse clipping and allows DC-coupled output to the 150 W video load. In addition, the NCS2553 integrates a 6th order Butterworth filter per channel with a 3 dB frequency bandwidth of 8 MHz. This allows rejecting out the aliases or unwanted over-sampling effects produced by the video DAC. Similarly, in the case of DVD recorders using ADC, this anti-aliasing filter (reconstruction filter) will avoid picture quality issues and will help to filter out parasitic signals caused by EMI interference. A built-in diode-like clamp is used in the chip for each channel to support AC-coupled mode of operation. The clamp is active when the input signal goes below 0 V. 2.28V 1V Y, R', G', B' 0.28V Clamp 0V 0.1mF IN1 LS 8MHz 220mF OUT1 RS 0.1mF DAC RS 0.1mF IN3 RS 0.7V Pb, Pr 0V 0.28V 0.7VPP IN2 800k Clamp 280mV LS 8MHz 6db 220mF OUT2 220mF OUT3 800k 280mV 6db 1.68V 75W ZO = 75W 75W 75W ZO = 75W 75W 1VPP 800k Clamp 280mV LS 8MHz 6db ZO = 75W 75W 75W Figure 13. AC-Coupled Inputs and Outputs Figure 13 shows an example for which the external video source coming from the DAC is AC-coupled at the input and output. But thanks to the built-in transparent clamp and level shifter the device can operate in different configuration modes depending essentially on the DAC output signal level High and Low and how it fits the input common mode voltage of the video driver. When the configuration is DC-Coupled at the Inputs and Outputs the 0.1 mF and 220 mF coupling capacitors are no longer used, the clamps are in that case inactive; this configuration has the big advantage of being relatively low cost with the use of less external components. The input is AC-coupled if for example the input-signal amplitude goes over the range 0 to 1.4 V or if the video source requires such a coupling. In some circumstances it may be necessary to auto-bias signals by the addition of a pull-up and pull-down resistor or only pull-up resistor (Typical 7.5 MW combined with the internal 800 kW pull-down) making the clamp inactive. The output AC-coupling configuration has the advantage of eliminating DC ground loop with the drawback of making the device more sensitive to video line or field tilt issues in the case of a too low output coupling capacitor. In some cases it may be necessary to increase the nominal 220 mF capacitor value. http://onsemi.com 7 NCS2553 DVD Player or STB 0.1 mF 10 mF 75 W 220 mF 75 W Video Cables 75 W 2 RS 3 RS IN3 IN2 OUT2 NCS2553 OUT3 7 75 W 220 mF 75 W Video Cables 75 W 6 75 W 220 mF 75 W Video Cables 75 W 4 VCC GND 5 B/Pd G/Y +5 V R/Pr RS G/Y Video SOC B/Pd 1 IN1 OUT1 8 R/Pr DAC Load Resistors AC-Coupling Caps are Optional Figure 14. Typical Application Circuit http://onsemi.com 8 NCS2553 PACKAGE DIMENSIONS SOIC-8 NB CASE 751-07 ISSUE AJ -X- A 8 5 B 1 S 4 0.25 (0.010) M Y M -Y- G K NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 6. 751-01 THRU 751-06 ARE OBSOLETE. NEW STANDARD IS 751-07. MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 1.35 1.75 0.33 0.51 1.27 BSC 0.10 0.25 0.19 0.25 0.40 1.27 0_ 8_ 0.25 0.50 5.80 6.20 INCHES MIN MAX 0.189 0.197 0.150 0.157 0.053 0.069 0.013 0.020 0.050 BSC 0.004 0.010 0.007 0.010 0.016 0.050 0_ 8_ 0.010 0.020 0.228 0.244 C -Z- H D 0.25 (0.010) M SEATING PLANE N X 45 _ 0.10 (0.004) M J ZY S X S DIM A B C D G H J K M N S SOLDERING FOOTPRINT* 1.52 0.060 7.0 0.275 4.0 0.155 0.6 0.024 1.270 0.050 SCALE 6:1 mm inches *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5773-3850 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative http://onsemi.com 9 NCS2553/D |
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