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CXA1700AQ Datasheet(PDF) 28 Page - Sony Corporation |
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CXA1700AQ Datasheet(HTML) 28 Page - Sony Corporation |
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28 / 51 page  —28— CXA1700AQ/AR (2) DDS measurement When a pulse with the following timing is input, the output from P34 (Pin 34 Y OUT) becomes as shown below; measures each DC differential. (3) Measurement of gain difference between PB ACC channels The ACC amplifier in the CXA1700 has a built-in 4-channel time constants, and those time constants can be switched by SWP (Pin 46) input. In addition, in NTSC playback chroma signal processing, PI return occurs in the SWP (Pin 46) input for Low interval. In this measurement, the signal k, that is phase-inverted each 1H, is input to PBC IN (Pin 45) for the Low interval of SWP; the continuous wave of the signal is input for the High interval of SWP. In this case, measure each channel level V1, V2, V3,and V4 of output P63 (Pin 63 C OUT) and calculate the gain difference between channels using the following equations: ∆GCH12 = V2 V1 ∆GCH13 = V3 V1 ∆GCH14 = V4 V1 P34 (Pin 34 Y OUT) output SG26 (Pin 26 DDS/MASK input) SG30 (Pin 30 VIN1 input) 357mV 143mV 100% white Y signal 3V 1.5V 0V 0V 5V ∆VVOB ∆VVOW ∆VJOGV SG31 (Pin 31 RECL/JVD input) Pedestal level reference Sync tip level reference |
Similar Part No. - CXA1700AQ |
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Similar Description - CXA1700AQ |
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