Low Cost 6-Channel HD/SD Video Filter ADA4420-6
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ADA4420-6ARUZ-RL (pdf) |
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Low Cost 6-Channel HD/SD Video Filter ADA4420-6 Sixth-order filters Transparent input sync tip clamp −1 dB bandwidth of 26 MHz typical for HD rejection 75 MHz 48 dB typical NTSC differential gain NTSC differential phase Rail-to-rail outputs Low quiescent current 32 mA typical Disable feature Output dc offset Set-top boxes DVD players and recorders HDTVs Projectors Personal video recorders The ADA4420-6 is a low cost video reconstruction filter specifically designed for consumer applications. It consists of six independent sixth-order Butterworth filters/buffers, three for standard definition Y/C or CVBS and three for high definition component signals YPrPb or RGB . The ADA4420-6 operates from a single 5 V supply and has a low quiescent current of 32 mA, making it ideal for applications where power consumption is critical. A disable feature allows for further power conservation by reducing the supply current to less than 8 uA typical when the device is not in use. FUNCTIONAL BLOCK DIAGRAM INSD1 x1 CLAMP INSD2 x1 CLAMP INSD3 x1 DIS CLAMP INHD1 x1 CLAMP INHD2 x1 CLAMP INHD3 x1 CLAMP OUTSD1 OUTSD2 OUTSD3 OUTHD1 OUTHD2 OUTHD3 ADA4420-6 Figure 07532-001 Each channel features a transparent sync tip clamp, allowing ac coupling of the inputs without requiring dc restoration. The output drivers on the ADA4420-6 have rail-to-rail output capabilities with 6 dB gain. A built-in offset of 250 mV allows the outputs to be dc-coupled, eliminating the need for large coupling capacitors. Each output is capable of driving two 75 Ω doubly terminated cables. The ADA4420-6 is available in either a 16-lead QSOP or a 20-lead TSSOP, and operates in the extended industrial temperature range of −40°C to +85°C. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: Fax Analog Devices, Inc. All rights reserved. ADA4420-6* Product Page Quick Links Last Content Update 08/30/2016 Comparable Parts View a parametric search of comparable parts Documentation Data Sheet • ADA4420-6 Low Cost 6-Channel HD/SD Video Filter Data Sheet Design Resources • ADA4420-6 Material Declaration • PCN-PDN Information • Quality And Reliability • Symbols and Footprints 0 Initial Version Typical Performance Characteristics Test 10 Applications Information 11 Overview 11 Disable 11 Input and Output Coupling 11 Printed Circuit Board PCB Layout 11 Video Encoder Reconstruction 11 Outline Dimensions 13 Ordering Guide 14 ADA4420-6 SPECIFICATIONS VS = 5 V, TA = 25°C, VO = V p-p, RL = 150 Ω, dc-coupled inputs, ac-coupled outputs, unless otherwise noted. See Figure 18, Figure 19, and Figure 20 for the test circuits. Table Parameter OVERALL PERFORMANCE DC Voltage Gain Input Voltage Range, All Inputs Output Voltage Range, All Outputs Linear Output Current per Channel Filter Input Bias Current SD CHANNEL DYNAMIC PERFORMANCE −1 dB Bandwidth −3 dB Bandwidth Out-of-Band Rejection Crosstalk Total Harmonic Distortion Signal-to-Noise Ratio Propagation Delay Group Delay Variation Differential Gain Differential Phase HD CHANNEL DYNAMIC PERFORMANCE −1 dB Bandwidth −3 dB Bandwidth Out-of-Band Rejection Crosstalk Total Harmonic Distortion Signal-to-Noise Ratio Propagation Delay Group Delay Variation DC CHARACTERISTICS Operating Voltage Quiescent Supply Current PSRR Output DC Offset Disable Assert Voltage Disable Assert Time Disable De-Assert Time Disable Input Bias Current Input-to-Output Isolation Test Conditions/Comments All channels f = 27 MHz f = 1 MHz f = 1 MHz, VO = V p-p, dc-coupled outputs f = 100 kHz to 6 MHz, unweighted f = 100 kHz to 5 MHz NTSC ac-coupled inputs, dc-coupled outputs see Figure 19 NTSC ac-coupled inputs, dc-coupled outputs see Figure 19 f = 75 MHz f = 1 MHz f = 10 MHz, VO = V p-p, dc-coupled outputs f = 100 kHz to 30 MHz, unweighted f = 100 kHz to 30 MHz Active, DIS = 1 Disabled, DIS = 0 HD channel, referred to output SD channel, referred to output All channels DIS = 0 to 1 DIS = 0 to 1 DIS = 1 to 0 Disabled, DIS = 0 Disabled, DIS = 0, f = 5 MHz Min Typ Max Unit 10 42 45 −68 70 57 16 MHz dB % dB ns % Degrees 27 31 43 48 −68 36 mA 13 uA 35 41 40 45 135 250 375 mV −96 ADA4420-6 ABSOLUTE MAXIMUM RATINGS Table Parameter Supply Voltage Power Dissipation Storage Temperature Range Operating Temperature Range Lead Temperature Soldering, 10 sec Junction Temperature Rating V See Figure 2 −65°C to +125°C −40°C to +85°C 300°C 150°C Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. THERMAL RESISTANCE is specified for the device soldered to a high thermal conductivity 4-layer 2s2p circuit board, as described in EIA/JESD ORDERING GUIDE Model1 Temperature Range ADA4420-6ARQZ −40°C to +85°C ADA4420-6ARQZ-R7 −40°C to +85°C ADA4420-6ARQZ-RL −40°C to +85°C ADA4420-6ARUZ −40°C to +85°C ADA4420-6ARUZ-R7 −40°C to +85°C ADA4420-6ARUZ-RL −40°C to +85°C 1 Z = RoHS Compliant Part. Package Description 16-Lead Shrink Small Outline Package QSOP 16-Lead Shrink Small Outline Package QSOP 16-Lead Shrink Small Outline Package QSOP 20-Lead Thin Shrink Small Outline Package TSSOP 20-Lead Thin Shrink Small Outline Package TSSOP 20-Lead Thin Shrink Small Outline Package TSSOP Package Option RQ-16 RQ-16 RQ-16 RU-20 RU-20 RU-20 Ordering Quantity Tube 98 1,000 2,500 Tube 75 1,000 2,500 NOTES ADA4420-6 ADA4420-6 NOTES Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07532-0-5/11 A |
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