Low Cost Triple CRT Driver CORPORATION Preliminary Data Sheet CVA2400T FEATURES • • • DESCRIPTION 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 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 Package Temperature CVA2400T T11A -20oC to +100oC CONNECTION DIAGRAM VCC 9 11 10 9 8 VOUT VCC VOUT 7 6 5 4 3 2 1 R1 = 1200Ω VOUT 12Ω VBIAS VBIAS Gain/Peaking Control VIN VIN 12Ω 7 1,3,5 GND = TAB TOP VIEW T11A PACKAGE VO 11,10,8 Gain/Peaking Control VIN Gain/Peaking Control VIN 1J-13 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 CHARACTERISTICS MIN TYP MAX UNITS Icc Supply Current 28 mA VOUT DC Output DC Level 52 V Av Voltage Gain 15 V/V Gain Matching 0.2 dB AC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 8pF, DCINPUT BIAS = 12V, VIN = 3.4V, VOUT = 50Vp-p. TCASE = +25oC. See Figure 1. SYMBOL CHARACTERISTICS MIN TYP MAX UNITS Tr Rise Time 5 ns Tf Fall Time 5 ns Le Linearity 6 % OS Overshoot 5 % FIGURE 1. TEST CIRCUIT VCC 9 C3 D1 VBIAS C1 C4 7 CVA2400T C2 VIN VIDEO INPUT 1,3,5 C7 C1 = 0.01µF C2 = 100µF C3 = 0.1µF C7 = 120pF R1 8,10,11 C6 D2 VP G 2,4,6 R2 VOUT TEKTRONIX FET PROBE MODEL 6201 (CAP. 1.5pF) GND TAB C4 = 100µF C6 = 8pF R1 = 62Ω R2 = 20Ω 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 D1 7 C2 CVA2400T VIN VIDEO INPUT 1,3,5 L VOUT 8,10,11 C5 R1 R4 R5 SPARK GAP D2 VPG 2,4,6 R2 C7 C4 DC BIAS GND TAB R1 = 62Ω R2 = 20Ω R3 = 47Ω R4 = 47(1/2W)Ω R7 = 33Ω R8 = 39Ω R10 = 680Ω C1 = 0.01µF C2 = 100µF C3 = 0.1µF C4 = 100µF C5 = 2.2µF 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