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DC2078A

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Summary of Contents for LTC6430-20

Page 1: ...Hz It incorporates a mini mum of passive support components to configure the L LT LTC LTM Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation All other trademarks are the property of their respective owners LTC6430 20 BLOCK DIAGRAM amplifier for the CATV applications with 75Ω input and output impedance Design files for this circuit board are available a...

Page 2: ... 0 3 4 500 19 4 46 8 91 6 62 6 24 2 3 5 600 19 2 47 0 92 0 24 3 3 8 700 18 8 46 3 90 6 23 7 4 3 800 18 5 43 7 85 4 22 8 4 7 900 18 4 41 9 81 9 22 5 5 0 1000 18 5 41 5 81 0 22 7 5 0 Units dB dBm dBc dBc dBc dBm dB Notes All figures are referenced to J1 Input Port and J4 Output Port 1 Two tone test conditions Output power level 1dBm tone tone spacing 1MHz 2 Single tone test conditions Output power l...

Page 3: ...T3andT4 convertthe differential signal to single ended 75Ω signal for compat ibility with the CATV environment while preserving all the exceptionalcharacteristicsoftheLTC6430 20 Inaddition the balun s excellent phase balance and the second order linearity of the LTC6430 20 combine to further suppress second order products across the entire CATV band Figure 3 shows the spurious products in dBc with...

Page 4: ...o 1000 Mid Frequency 50Ω LTC6430 15 Differential 100Ω DC1774A C 100 to 1200 Wide Frequency 50Ω LTC6431 15 Single ended 50Ω DC2032A 50 to 1000 Cable Infrastructure 75Ω LTC6430 15 Differential 100Ω DC2077A 100 to 1200 Wide Frequency 50Ω LTC6431 20 Single ended 50Ω DC2153A 700 to 1700 High Frequency 50Ω LTC6430 15 Differential 100Ω DC2090A 50 to 1200 Power Doubler 50Ω Dual LTC6430 15 Differential 50Ω...

Page 5: ... of the two input signalsources Theyalsoreducereflectionsandpromote maximum power transfer with wideband impedance matching Setup the Spectrum Analyzer a Adjust the spectrum analyzer for maximum possible resolution of the intermodulation products amplitude in dBc A narrower resolution bandwidth will take a longer time to sweep b Optimize the dynamic range of the spectrum analyzer by adjusting the ...

Page 6: ...analyzer Adjust the signal generator levels such that the output power measures 1dBm tone at the amplifier output J2 after correcting for external cable losses minimum loss matching pads and attenuations QUICK START PROCEDURE 4 Change the spectrum analyzer s center frequency and observe the two IM3 tones at 1MHz below and above theinputfrequencies ThefrequenciesofIM3_LOWand IM3_HIGH are 599MHz and...

Page 7: ... PASS FILTER MINI CIRCUITS ZHL 2 OR EQUIVALENT AMPLIFIER MINI CIRCUITS ZHL 2 OR EQUIVALENT 6dB ATTENUATION PAD OPTIONAL ROHDE AND SCHWARZ FSEM30 20dB ATTENUATION PAD MATCHES DUT GAIN MINIMUM LOSS MATCHING PAD 75Ω 50Ω MINI CIRCUITS BMP 5075R OR EQUIVALENT APPROX 18dBm TONE 1dBm TONE DUT GAIN APPROX 19dB APPROX 12dBm TONE SPECTRUM ANALYZER 5 7dB COMBINER MINI CIRCUITS ADP 2 9 OR EQUIVALENT SIGNAL GE...

Page 8: ...F 50V 5 0603 AVX 06035C102JAT2A 6 3 E1 E2 E3 TESTPOINT TURRET 0 095 MILL MAX 2501 2 00 80 00 00 07 0 7 2 J1 J2 F TYPE END LAUNCH JACK FOR 0 062 PCB 75Ω AMPHENOL CONNEX 222181 8 2 L1 L2 INDUCTOR CHIP 560nH 5 0603LS 1608 COILCRAFT 0603LS 561XJLB 9 2 L3 L4 RES CHIP 0Ω 0603 VISHAY CRCW06030000Z0ED 10 2 R1 R2 RES CHIP 0Ω 0603 VISHAY CRCW06030000Z0ED 11 1 R3 R 0402 OPT 12 2 T3 T4 RF TRANSFORMER TC1 33 2...

Page 9: ...owever noresponsibilityisassumedforitsuse LinearTechnologyCorporationmakesnorepresenta tion that the interconnection of its circuits as described herein will not infringe on existing patent rights SCHEMATIC DIAGRAM 5 5 4 4 3 3 2 2 1 1 D D C C B B A A TECHNOLOGY CATV AMPLIFIER TECHNOLOGY CATV AMPLIFIER TECHNOLOGY CATV AMPLIFIER ...

Page 10: ...TORY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the goods Further the user releases LTC from all claims arising from the handling or use o...

Page 11: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC2078A ...

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