C300 ETC2
Document overview
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Technical content
c 300/400 SER|ES MONOLITHIC WIDEBAND CRT DISTORTION CORRECTION DEVICE
FEATURES
r 16 pin ceramic dip (C300 Series) r Minimum of external components required o Easily adjusts for yoke errors o Accuracy better than 0.590 Max (C312) o Bandwidth compatible with l0MHz systems r Both geometry and focus available o MIL 883C available o Low cost APPLICATIONS (for Vector Displays Only) o Military Displays HUDS ATC HDDS PPI o Simulators Beam Penetration Shadow mask o Phototypsetting equipment o Computer Output Microfilm displays r Computer driven graphic displays Medical monitors CAD displays TV Cameras and projection systems
DESCRIPTION
The Intronics C300/400 Series are monolithic devices that accurately corrcct for gcometric or focus clistortion in CRT displavs. The C300 ( l6 pin DIP) series providcs wideband. accurate firll facc geornetry or focus correc- tion with fcw external con-rponents. These units connect bctween the horizontal and vertical inputs ancl their cle- flection amplil'icrs. Sinrplc external adjustments provicle for corrcction rnagnitude. horizontal/vertical keystone and curvature synrmetry. The C400 serics (24 pin DIP) is. a lull Mil temp langc. -55"C to + l l5"C device. The principle of operation is basccl on circuitry whicl-r srnoothly synthesizes a correction function that closcly arrr.rrorirnltcs the cxact mathematical correction function. GEOMETRY CORRECTION VX = -x(x2 + y2 ) Vy = *y{xz* y2} PINOUT H OUT H = HORIZONTAL V = VERTICAL TRANSFER FUNCTION: FOCUS CORRECTION VF-*(xe+y?) a a O H OUT GND H OFF IN VONIN HONIN V OFF IN REF IN V OUT GND H OFF IN VONIN HONIN V OFF IN BEF IN TOP VlEw fifl/lnnflnn r?-*----ll l"li-rrTTTrTnm'- c3ro13rr 1312 MECHANICAL DIMENSIONS NOT€S 1. L.ds wnh,n 0 13 mh (0.M1 2 Pks Ind€x, Nor.h 'n l..d 3. o'h -l'ro €nr.' ol led! ,ILLIMETERS INCHES 24 32.26 230 t0 L 2.92 3.43 o.t l5
C3OO/4OO SERIES TECHNICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS SUPPLY VOLTAGE (Between Vs + and Vs ) 20V OPERATING TEMPERATURE INTERNAL POWER DISSIPATION 700mW max (includes external load resistors) STORAGE TEMPERATURE C3 10 SERIES -25"C<TA<+85'C C410 SERIES 55'C<TA<+150"C C3 l0 SERIES -25'C(Tn(+ 85'C C4l0 SERIES 55.C<TA<+l25oC PERFORMANCE SUMMARY (TYPICAL AT +25"C, RATED SUPPLIES, TEST CIRCUIT FIG. 3(16VDC), UNLESS OTHERWISE NOTED SPECIFICATIONS.GEOMETRY Horizontal/Vertical Correction Functi0n Output (for geometry configuration) Hodzontal Output Vertical Output Bandrvidth Correction only Resulting corrected signal Slew Rate Correction only Resulting corrected signal Settling Time To 17, Correction only Resulting corrected signal Delay Time Offset Temperature Stability Output Resistance Accuracy Resulting Accuracy of Corrected Function by total deflection angle (test circuit Fig. 3) SPECTFTCATTONS-FOCUS (FIC.5) Bandwidth Slew Rate Horizontal Output Vertical Output Offset Temperature Stability Output resistance Accuracy Horizontal Vertical SPECIFICATIONS.GENERAL Transfer Function Geometry Horizontal Vertical Focus Horizontal Vertical Temp€rature Range for full rated performance Rated Specifications Storage Power Supply (1Vs) Quiescent Current NOTE 1. For wide bandwidth use Intronics A5O4 20" 30' 40" )t, 60" 70" 80' C3IO SERIES c3l0/c3l I i c3l2 1V F.S. 1V F.S. 2MHZ Min. qFp n^rp I I r 6MHZ Min. 15Vips l2OY lps 300ns 2ps 50ns sogv/"C 40OMax FIG. I Uncorrected C3l0 C3l1 C3l2 lv F.s. lv F.s. 2MHZ Min. See note ( 1 )6MHZ Min l5v/ps l20Y lps 300ns 2ps 50ns sopv/"C 40CrMax c4l0 c4l I C4IO SERIES c4lolc4ll 2MHZMin. l5Virrs 1.00v F.s. -1.00v F.s. s0!vfc 40SrMax 2% F.S. 270 F .5. x(x2 + yz 1 y(x'+y') _x2 -40'c to +125'c 55'C to + 150'C r6v 32mA typical 2MHZ Min. I 5 V/ss 1.00v F.s. 1.00v F.s. sopvfC 40OMax 2% F .5. 2% F .5. -x(x'+yz I y(x2 +y2) -y2 o"c to +70'c -25"C to +85"C 16V 32mA typical 3.5 .68 .34 J4 % Max
TYPICAL APPLICATION CIRCUIT (C3IO); GEOMETRY CORRECTION FIG.2 C3IO ADJUSTMENT PROCEDURE Adjust Horizontal Correction Magnitude poten- tionreter for optinronly straight vertical lines. Adjust Vertical Correction Magnitude potentio- meter for optimonly straight horizontal lines. NOTE: 1. The circuit shown is a typical configuration to correct for'pincushion'distortion. 2.Only 2 potentiometers (Xc- an<l Y.-) are required lor 2')l,FS accuracy (50o full angle detlcction). l,'.1 TYPICAI, APPI,ICATION CI RCUIT C3 I I, 3 I2, 4 IO, 4I I ; GF]OMF,TRY CORRF,(]TION tjlG -l C3l l, 3t2. 410,'ll I 1. Adjust Horizontal Correction Magnitude poten- tiometer for optimonly straight vertical lines. 2. Adjust Vertical Correction Magnitude potentio- meter for optimonly straight horizontal lines. 3. Adjust right/left curvature balance potentio- meter for optimonly straight vertical "On-Axis" 1ine. 4. Adjust top/bottom curvature balance potentio- meter for optimonly straight horizontal"On-Axis" line. 5. Adjust right/left size potentiometer until right side is same size as left side. 6. Adjust top/bottom size potentiometer until top is same size as bottom. 7. Repeat steps 1-6 until desired accuracy is obtained. PIN-PIN CHART 310/410 310/410 1: | 9:12 2: 4 l0: 13 3:5 1l:15 4z 6 12z19 5: 7 13l2O 6: 8 14t2l 7 z 9 15:23 8:ll 16224 r5t) C3l I is shown. For C4l0-41I refer to pin-pin chart io'iietermine correct pin designations. F_*_*fr E R56 FIG.4 COMPONENT VALUES (K OHM) FOR 15V FULL SCALE INPUT AND OUTPUT NOTE: VALUES SHOWN ARE CALCULATED-TOLERANCE RECOMMENDED !5% RI R2 R3 R4 R5 R7TOTAL DEFLECTION 20' 30' 40" 50" 60" 70" g0' 900 4K 2.1K 4K l.rK .4K t.l K AK 2.1K l.l K 2.r K 2.1K t.r K 2.1K l.1K 2.1K 2.1K ./+K lK .,175K 4 glK lOK .l'3K 4K 2.lK .415K 4.69K lOK 4K 2.lK .415K 4.5-lK 5K ..125K 4.3-lK 4K 425 K 4.09 K .425K 3.83K lK .4lK .425K 3.53K l.5K .46K .toK .32K .36K .39K 1.07K l.0K .94K .88K .84K .81K .78K .1lK
RESULTING INPUT LEVELS VERSUS DEFLECTION ANGLES. TO BE USED FOR OTHER FULL SCALE TNPUT LEVELS. HORIZONTAL/VERTICAL HORIZONTAL/VERTICAL TOTAL DEFLECTION ON AXIS INPUTS OFF AXIS INPUTS REF IN 20" 30' -^o ) r..l 600 70" 90" 900 .8V PEAK F.S. .8V PEAK F.S. .8V PEAK F.S. .8V PEAK F.S. 8V PEAK F.S. .8V PEAK F.S. .8V PEAK F.S. .8V PEAK F.S. .95V PEAK F.S. .9OV PEAK F.S. .85V PEAK F.S. .85V PEAK F.S. .85V PEAK F.S. .85V PEAK F.S. .85V PEAK F.S. .85V PEAK F.S. .65V .00v .30v .60v .80v .95V .10v .20v TYPICAL APPLICATION CIRCUIT . FOCUS HONTN HOU c310,410 v oN tN REF lN v ouT FIG.5 15V F.s. HORIZONTAL UNCORRECTED 2xINPUT > 5v F.s. VEBTICAL UNCORRECTED rNPUr ) Note: Refer to pin-pin chart on previous page to determine correct pin designations. -15 +1s Pins shown above are for C300 series. NOTES: I. IF WIDER BANDWIDTH IS DESIRED USE INTRONICS 4560 OR A5O4 IN PLACE OF LM318. RESULTING CORRECTED SIGNAL .12 .14 BANDWIDTH SLEW RATE SETTLING TO 1% LM3I8 2MHz l0V/ps lps A504 t O tutH, 200V/ps I 00ns o F z llt G U G 2. WHEN USING C410.41I DELETE R7 AND USE THE FOLLOWING VALUES: 20" 750*Allt56e,!rc% 30' 750*Qll27OSL!\\j7/" 400 7 so*Ql 1392Q! rcal 500 150*fz11541fzt1070 7 0" 7 50*St I 1790fijto't 80" 750*Su 1924tLttT'r 90" 150*tl,llt]42?!rc% * 3600 PPM wire wound resistor (Available from KRL Electronics o 20 40 60 80 100 CRT FULL ANGLE DEGREES FIG.6 SYSTEM TEMP- ERATURE DRIFT USING INTRONIC'S A56O SUMMING AMPLIFIER MEAS- URED AT END OF EACH AXIS AS A PERCENTAGE OF FULL AXIS, CORNER DRIFT IS SMALLER or equivalent) OFF AXIS AND NON.ORTHOGONAL GUNS IF THE ADJUSTMENTS DETAILED ABOVE WERE NOT SUFFICIENT TO CORRECT FOR SYSTEM ERRORS BECAUSE A GUN IS OFF AXIS IN EXCESS OF 5'OR NOT 90'WITH RESPECT TO THE OTHER. CALL OR WRITE FOR APPLICATION NOTES. THESE ERRORS CAN BE CORRECTED EASILY WITH THE C3 1O OR C41O SERIES. TYPICAL OUTPUT FIG.6 c310 c31 1 c3't2 MAX v c410 c41'r MAX ( / / 'rt"/ ,/, // U intronies