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| Low Cost Triple CRT Driver CORPORATION Preliminary Data Sheet CVA2400T FEATURES DESCRIPTION The CVA2400T contains three wideband amplifiers, designed specifically to drive a CRT. It features no crossover distortion for excellent gray scale linearity, external emitter peaking to maximize the high frequency gain at cross hatch pattern and adjustable gain for ease of use. This device can drive monitors with resolutions of 1280 x 1024 (non-interlaced) with pixel frequency of 176MHz. The part is housed in the industry standard 11-lead TO-220 molded power package. The heat sink is grounded. ORDERING INFORMATION Part CVA2400T Package T11A Temperature -20oC to +100oC * * * * * * * Rise/Fall Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0ns Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65VP-P Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90V APPLICATIONS CRT driver for up to 69kHz monitors with resolution up to 1280 x 1024. Excellent Gray Scale Linearity Emitter Peaking Option Adjustable Gain CONNECTION DIAGRAM 11 10 9 8 7 6 5 4 3 2 1 VOUT VCC 9 VOUT R1 = 1200 VCC VOUT VBIAS Gain/Peaking Control VIN Gain/Peaking Control VIN Gain/Peaking Control VIN GND = TAB 12 VO 11,10,8 12 VBIAS 7 VIN 1,3,5 1J-13 TOP VIEW T11A PACKAGE 2,4,6 Gain/Peaking Control GND TAB 1N-19 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CVA2400T CORPORATION ABSOLUTE MAXIMUM RATINGS Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12W Storage Temperature . . . . . . . . . . . . . . . . . . . -25oC to +100oC Operating Temperature . . . . . . . . . . . . . . . . . -20oC to +100oC Lead Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300oC DC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 8pF, DCINPUT BIAS = 12V, VIN = 1.8V, VOUT = 50Vp-p. TCASE = +25oC. See Figure 1. SYMBOL Icc VOUT DC Av Supply Current Output DC Level Voltage Gain Gain Matching CHARACTERISTICS MIN TYP 28 52 15 0.2 MAX UNITS mA V V/V dB AC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 8pF, DCINPUT BIAS = 12V, VIN = 3.4V, VOUT = 50Vp-p. TCASE = +25oC. See Figure 1. SYMBOL Tr Tf Le OS Rise Time Fall Time Linearity Overshoot CHARACTERISTICS MIN TYP 5 5 6 5 MAX UNITS ns ns % % FIGURE 1. TEST CIRCUIT VCC 9 C3 VBIAS C1 C2 D1 7 CVA2400T VIN VOUT 8,10,11 D2 C4 C6 VIDEO INPUT R2 C7 1,3,5 VP G 2,4,6 GND TAB TEKTRONIX FET PROBE MODEL 6201 (CAP. 1.5pF) R1 C1 = 0.01F C2 = 100F C3 = 0.1F C7 = 120pF C4 = 100F C6 = 8pF R1 = 62 R2 = 20 D1, D2 = FHD400 1N-20 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CVA2400T CORPORATION FIGURE 2. APPLICATION CIRCUIT VCC 9 C3 VBIAS C1 R3 7 C2 CVA2400T D1 VOUT 8,10,11 C5 C4 L VIN VIDEO INPUT R2 C7 R4 R5 SPARK GAP 1,3,5 VPG 2,4,6 GND TAB D2 DC BIAS R1 R1 = 62 R2 = 20 R3 = 47 R4 = 47(1/2W) R7 = 33 R8 = 39 R10 = 680 C1 = 0.01F C2 = 100F C3 = 0.1F C4 = 100F C5 = 2.2F C7 = 40 - 120pf D1, D2 = FHD400 L = 330 - 390nH 1N-21 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CVA2400T CORPORATION Information furnished by Calogic is believed to be accurate and reliable. However, no responsibility is assumed for its use: nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Calogic. CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 |
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