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MM1502 Datasheet(PDF) 11 Page - Mitsumi Electronics, Corp. |
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MM1502 Datasheet(HTML) 11 Page - Mitsumi Electronics, Corp. |
11 / 14 page MITSUMI Video Switch · 75 Ω driver · Y/C mix MM1501 MM1511 ~ MM1512 · Switch Status Item Symbol Switch status S1 S2 Consumption current ICC 22 Voltage gain GV 12 21 Frequency characteristic fc 12 21 Item Symbol Switch status S1 S2 Differential gain DG 3 1 Differential phase DP 3 1 Y output dynamic range VDY 21 C output dynamic range VDC 31 · Measurement Procedures Consumption current ICC1 Connect a DC ammeter to the VCC pin and measure. Hereafter, short the ammeter to use. Voltage gain GV Input a 2.0VP-P (1.0VP-P for MM1512), 100kHz sine wave to SG1. If TP1 voltage is V1 and TP2 voltage is V2, find GV by the following formula: GV = 20LOG (V2/V1) dB Frequency characteristic fc In the above GV measurement, if TP2 voltage at 10MHz (7MHz for MM1512) is V3, find fc by the following formula. fc = 20LOG (V3/V2) dB Differential gain DG Input a 2.0VP-P (1.0VP-P for MM1512) to SG1, input a chroma signal to SG2, and measure differential gain at TP2. APL = 10 ~ 90% Differential phase DP The same as for DG, but measure differential phase. Y output dynamic range VDY Input a 100kHz sine wave to SG1. Measure VDY, the maximum amplitude under THD 1%, at TP2. Input an APL 50% luminance signal to SG1 and input a chroma signal to SG2. Change the chroma signal amplitude and measure VDC, the maximum amplitude where there is no waveform distortion at TP2. C output dynamic range VDC |
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