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M52744SP Datasheet(PDF) 9 Page - Mitsubishi Electric Semiconductor |
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M52744SP Datasheet(HTML) 9 Page - Mitsubishi Electric Semiconductor |
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9 / 19 page  MITSUBISHI ICs (Monitor) M52743SP/M52744SP I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER 9 PDCH Pedestal voltage temperature characteristics1 Measure the pedestal voltage at 25 °C. The measured value is called PDC1. Measure the pedestal voltage at temperature of -20 °C. The measured value is called PDC2. Pedestal voltage temperature characteristics 1 is calculated by the equation below: PDCH=PDC1-PDC2 PDCL Pedestal voltage temperature characteristics2 Measure the pedestal voltage at 25 °C. The measured value is called PDC1. Measure the pedestal voltage at temperature of 75 °C. The measured value is called PDC3. Pedestal voltage temperature characteristics 2 is calculated by the equation below: PDCL=PDC1-PDC3 OTr OSD pulse characteristics1 Measure the time needed for the output pulse to rise from 10% to 90% (OTR) with an active prove. OTf OSD pulse characteristics2 Measure the time needed for the output pulse to fall from 90% to 10% (OTF) with an active prove. Oaj1 OSD adjust control characteristics1 Measure the amplitude output at OUT (29, 32, 35). The measured value is called VOUT (29,32,35), and is treated as Oaj1. ∆Oaj1 OSD adjust control relative characteristics1 Relative characteristics ∆Oaj1 is calculated by the equation below: ∆Oaj1=VOUT (29)/VOUT (32), VOUT (32)/VOUT (35), VOUT (35)/VOUT (29) Oaj2 OSD adjust control characteristics2 Measuring condition and procedure are the same as described in Oaj1. ∆Oaj2 OSD adjust control relative characteristics2 Measuring condition and procedure are the same as described in ∆Oaj1. Oaj3 OSD adjust control characteristics3 Measuring condition and procedure are the same as described in Oaj1. ∆Oaj3 OSD adjust control relative characteristics3 Measuring condition and procedure are the same as described in ∆Oaj1. VthOSD OSD input threshold voltage Reduce the SG6 input level gradually, monitoring output. Measure the SG6 level when the output reaches 0V. The measured value is called VthOSD. VthBLK OSD BLK input threshold voltage Confirm that output signal is being blanked by the SG6 at the time. Monitoring to output signal, decreasing the level of SG6. Measure the top level of SG6 when the blanking period is disappeared. The measured value is called VthBLK. HBLK1 Retrace BLK characteristics1 Measure the amplitude output is blanked by the SG7 at OUT (29, 32, 35). The measured value is called VOUT (29, 32, 35), and is treated as HBLK1. HBLK2 Retrace BLK characteristics2 Measure the amplitude output is blanked by the SG7 at OUT (29, 32, 35). The measured value is called VOUT (29, 32, 35), and is treated as HBLK2. HBLK3 Retrace BLK characteristics3 Measure the amplitude output is blanked by the SG7 at OUT (29, 32, 35). The measured value is called VOUT (29, 32, 35), and is treated as HBLK3. VthRET Retrace BLK input threshold voltage Confirm that output signal is being blanked by the SG7 at the time. Monitoring to output signal, decreasing the level of SG7. Measure the top level of SG7 when the blanking period is disappeared. The measured value is called VthRET. SS-NV SOG input maximum noize voltage The sync's amplitude of SG4 be changed all white into all black, increase from 0VP-P to 0.02VP-P. No pulse output permitted. SS-SV SOG minimum input voltage The sync's amplitude of SG4 be changed all white or all black, decrease from 0.3VP-P to 0.2VP-P. Confirm no malfunction produced by noise. VSH Sync output hi level Measure the high voltage at SyncOUT. The measured value is treated as VSH. VSL Sync output lo level Measure the low voltage at SyncOUT. The measured value is treated as VSL. |
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