mitsubishi ics (monitor) M52738P 3-channel video preamplifier with osd mixing, retrace blanking 1 preliminary notice:this is not a final specification. some parametric limits are subject to change. description the M52738P is semiconductor integrated circuit for crt display monitor. it includes osd blanking function, osd mixing, wide-band ampli?r, main and sub contrast controls, brightness control function. features frequency band width : rgb............................130mhz (at -3db) osd.............................................80mhz input :rgb.............................................................0.7v p-p (typ.) osd.......................................1.6v p-p minimum (positive) osd blk...............................1.6v p-p minimum (positive) retrace blk........................1.2v p-p maximum (negative) output :rgb...............................................................4v p-p (min.) osd...............................................................4v p-p (min.) contrast and brightness can be controlled with a main control. the main control changes contrast or brightness of 3-channels simultaneously. the sub control changes contrast of each channel independently. structure bipolar silicon monolithic ic application crt display monitor recommended operating condition supply voltage range....................................................11.4 to 12.6v rated supply voltage................................................................12.0v pin configuration (top view) 28 25 26 27 1 4 3 2 24 5 23 6 20 9 19 10 18 11 17 16 12 13 14 15 7 8 22 21 outline 28p4 output (r) sub contrast (b) brightness hold (g) sub contrast (g) hold (r) v cc2 osd in (b) v cc1 osd blk in v cc1 input (r) osd in (g) gnd input (g) osd in (r) sub contrast (r) output (g) gnd gnd blk in cp in hold (b) main contrast osd adj v ref input (b) output (b) M52738P block diagram r amp r sub contrast r osd mix g amp g sub contrast g osd mix b amp b sub contrast b osd mix output (r) sub brightness hold (g) sub hold (r) v cc2 osd in (b) v cc1 osd blk in v cc1 input (r) osd in (g) gnd input (g) osd in (r) sub output (g) gnd gnd blk in hold (b) main contrast osd adj v ref input (b) output (b) cp in 28 26 27 25 24 20 21 19 17 18 16 15 23 22 13 245 9 81012 11 13 14 67 r contrast g contrast b contrast contrast (b) contrast (g) contrast (r)
mitsubishi ics (monitor) M52738P 3-channel video preamplifier with osd mixing, retrace blanking 2 preliminary notice:this is not a final specification. some parametric limits are subject to change. absolute maximum ratings electrical characteristics (ta=25 c, v cc1 =v cc2 =12v, unless otherwise noted) note 1: the ambient temperature is 25 c. 2: the supply voltage is 12v. 3: the direction of a current that ?ws toward the ic is regarded as plus. symbol parameter ratings unit v cc supply voltage 13 v p d power dissipation 2000 mw t opr operating temperature -20 to 70 c t stg storage temperature -40 to 150 c v opr recommended operating supply voltage 12 v v opr recommended operating supply voltage range 11.4 to 12.6 v surge electrostatic discharge 200 v symbol parameter test point test conditions limits unit min. typ. max. i cc i cc 6, 9, 21 no input. measurement of current that ?ws into 6, 9 and 21 - 100 ma gmax maximum gain 18, 20, 23 18, 20, 23 input vsg, 15 input pg v13=4v v26, v27, v28=4v 20 db d gmax relative maximum gain -- 0.8 1.0 1.2 db v cr1 contrast control characteristics (typical) 18, 20, 23 18, 20, 23 input vsg, 15 input pg v13=2v v26, v27, v28=4v 14 db v cr2 contrast control characteristics (minimum) 18, 20, 23 18, 20, 23 input vsg, 15 input pg v13=0.25v v26, v27, v28=4v 0.25 v p-p v scr1 sub contrast control characteristics (typical) 18, 20, 23 18, 20, 23 input vsg, 15 input pg v26, v27, v28=2v v13=4v 15.5 db v scr2 sub contrast control characteristics (minimum) 18, 20, 23 18, 20, 23 input vsg, 15 input pg v26, v27, v28=0.25v v13=4v 1.1 v p-p v b1 brightness control characteristics (maximum) 18, 20, 23 15 input pg v25=10v 8.5 v v b2 brightness control characteristics (typical) 18, 20, 23 15 input pg v25=1v 1.1 v v b3 brightness control characteristics (minimum) 18, 20, 23 15 input pg v25=0v -- 0.1 v f c1 frequency characteristics 1 (f=50mhz;maximum) 18, 20, 23 18, 20, 23 input sg 0 db f c2 frequency characteristics 2 (f=130mhz; maximum) 18, 20, 23 18, 20, 23 input sg -3 -- db tr video output rise time 18, 20, 23 18, 20, 23 input pg, 15 input pg 3.0 nsec tf video output fall time 18, 20, 23 18, 20, 23 input pg, 15 input pg 4.0 nsec v thcp clamp pulse threshold voltage 18, 20, 23 18, 20, 23 input vsg, 15 input pg 1.2 v ot r osd output rise time 18, 20, 23 1, 2, 3 input pg, 15 input pg 4 nsec ot f osd output fall time 18, 20, 23 1, 2, 3 input pg, 15 input pg 10 nsec o aj1 osd adjust control (maximum) 18, 20, 23 1, 2, 3 input pg, 15 input pg v14=4v v26, v27, v28=2v 5 v p-p o aj2 osd adjust control (minimum) 18, 20, 23 1, 2, 3 input pg, 15 input pg v14=0v v26, v27, v28=2v 0 v p-p osd th osd input threshold voltage 18, 20, 23 1, 2, 3 input pg, 15 input pg 4 input pg 1.6 v h blk retrace blk characteristics 18, 20, 23 16 input pg -- 0.5 v h vth retrace blk input threshold voltage 18, 20, 23 16 input pg 1.2 v
mitsubishi ics (monitor) M52738P 3-channel video preamplifier with osd mixing, retrace blanking 3 preliminary notice:this is not a final specification. some parametric limits are subject to change. typical characteristics ambient temperature ta ( c) 0 25 50 75 100 125 400 1200 2000 2800 150 -20 2400 thermal derating (maximum rating) power dissipation p d (mw) 70 0 800 1600
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