CRT Driver CORPORATION Preliminary Data Sheet CVA1556N FEATURES • • • • • DESCRIPTION Little or No Heat Sink Required Ease of Use Emitter Peaking Rise Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <8.0ns Fall Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <8ns The CVA1556N CRT driver amplifier is a very low cost solution designed for monitors up to 69KHz. This product is designed to replace the discrete solution for the 14", 15" and 17" monitors. ORDERING INFORMATION APPLICATIONS Part Package Temperature • CVA1556N 8-PDIP 0oC to +110oC 14", 15" and 17" Monitors with 69KHz Scanning Frequency CONNECTION AND BLOCK DIAGRAMS VCC R POWER Q1 VBIAS 1 8 RPOWER N/A 2 7 VCC VIN 3 6 V OUT GAIN/PEAKING CONTROL 4 5 GND 1S-45 VOUT Q2 VB Q3 VIN Q4 4 GAIN/PEAK GND 1T-26 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CVA1556N CORPORATION ABSOLUTE MAXIMUM RATINGS Operating Temperature (Case) . . . . . . . . . . . . . 0oC to +110oC Lead Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300oC Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100V Storage Temperature . . . . . . . . . . . . . . . . . . . -25oC to +125oC Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 175oC DC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 12pF, VBIAS = 12V, VIN = 2.7V, RL = 1500Ω, TCASE = +25oC. SYMBOL CHARACTERISTICS Icc Supply Current VOUT DC Output DC Level Av Voltage Gain MIN 44 TYP MAX UNITS 20 26 mA 50 56 V 13 15 V AC ELECTRICAL CHARACTERISTICS Vs = 80V, CL = 12pF, VBIAS = 12V, VIN = 2.7V, RL = 1500Ω, TCASE = +25oC. SYMBOL CHARACTERISTICS MIN TYP MAX UNITS Tr Rise Time 7.5 9 ns Tf Fall Time 7.5 9 ns Le Linearity 5 % OS Overshoot 3 % FIGURE 1. TEST AND APPLICATION CIRCUIT 80V C1 R1 8 VIN R2 3 7 L1 6 1 R6 4 R3 R7 C3 5 C2 VOUT CVA1556N R4 R5 +12V C1 = 10mF C2 = .01mF C3 = 47pF L1 = .56m H R1 = 1.5K (5W) R2 = 33W R3 = 50W R4 = 100W R5 = 33W R6 = 820W R7 = 47W 1U-14 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CVA1556N CORPORATION APPLICATION INFORMATION FIGURE 2. CVA1556N DC CHARACTERISTICS The CVA1556N is a high voltage triple CRT driver suitable for VGA, Super VGA, IBM® 8514, 1024 x 768 non-interlaced display applications. The CVA1556N features 80V operation and low power dissipation. The part is housed in the industry standard 8-pin PDIP. 80 2 1.8 70 1.6 60 The transfer characteristics of the CVA1556N application (Figure 2.) are shown in Figure 3. Since this is a class A input stage, power supply current increases as the input signal increases and consequently power dissipation also increases. V OUT (VOLTS) Thermal Considerations 1.4 1.2 50 1.0 40 0.8 30 0.6 0.4 20 The CVA1556N can be used without a heat sink. Under white screen condition, i.e. 25V output, dissipation is 0.6W/channel. Under gray level conditions CL =12pf, VOUT = 45P-P, the dissipation is 1.1W/channel. 0.2 10 0 -0.2 0 0.2 0.5 0.7 1.0 1.2 1.5 1.7 2.0 2.2 2.5 2.7 3.0 3.2 3.5 3.7 4.0 4.2 4.5 4.7 5.0 5.2 5.5 5.7 6.0 0 + The CVA1556N maximum load is 600Ω to ground or V . V IN (VOLTS) V OUT Q3-POWER POWER/OUTPUT STAGE The output of CVA1556N is not short circuit proof. Any resistance to V+ or Ground should be more than 600Ω. 1T-25 TYPICAL CHARACTERISTICS RISE TIME FALL TIME 7.25V 10V/DIV 10V/DIV 7.25V -2.75V -2.75V 20ns/DIV 20ns/DIV 1S-49 CROSS HATCH WHITE BACKGROUND 1S-50 CROSS HATCH BLACK BACKGROUND 8.25V 10V/DIV 10V/DIV 8.25V -1.75V -2.75V 20ns/DIV 1T-01 20ns/DIV 1T-02 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CVA1556N CORPORATION TYPICAL APPLICATION 1 R104 15K 2 VR101 10K CLAMP+ 2 3 L101 4U7 2 2 P101 3 18 C105 10U 16V 2 R101 75 W R107 390 R110 18K 1 2 4 2 2 C106 0.1U V 1 C102 47u V N P + 3 P101 2 GND 4 P101 1 5 R102 75 W 6 1 C110 0.1U V 1 1 VR103 10K R-GAIN L102 1 4U7 2 16 N + CVA1233 G 3 2 17 CONTINUED ON NEXT PAGE GND 1 19 1 C101 47u V N P + 2 2 C107 0.1U V N + P 1 P101 20 2 1 R 1 1 C126 10U 16V P 15 2 R108 390 R111 18K 1 2 7 2 2 C107 0.1U V 1 B C103 47u V N P + 5 P101 2 GND 6 P101 1 3 2 14 1 8 1 C111 0.1U V 1 VR104 10K G-GAIN 13 2 R103 75 W R109 390 R112 18K 1 2 9 2 CLAMP 7 P101 1 R105 15K 3 2 12 2 C108 0.1U V 1 C112 0.1U V 1 1 1 VR105 10K B-GAIN 2 8 P101 GND 9 P101 VR102 10K CONTRAST 1 2 1 R106 100 2 3 2 1 10 11 1 C109 0.1U V 2 R156 100 W 1U-15A CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CVA1556N CORPORATION TYPICAL APPLICATION (continued) C160 10 m CVA1556N R116 22 C115 ??? C125 ??? 6 4 5 C130 ??? 100V L103 R112 D1 1 8 2 7 R129 1.5K L111 R120 33 3 6 4 5 C140 10.4 100V R126 100 L109 R133 D3 D4 CVA1556N R118 22 C117 ??? R124 33 C120 27 3 CVA1556N R123 33 C119 27 C127 ??? 7 D2 C116 ??? R115 100 2 R128 ??? R125 100 R117 22 C126 ??? 8 L111 R119 33 R122 33 C118 27 R114 100 1 CONTINUED ON NEXT PAGE R113 ???? 1 8 2 7 R130 1.5K L108 R121 33 R127 100 3 6 4 5 C150 10m F 100V L110 R134 D5 D6 1U-15BB CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CVA1556N CORPORATION TYPICAL APPLICATION (continued) VR106 100K 16 15 VR107 100K 14 VR108 100K 13 12 11 10 9 7 8 CVA4502 1 2 C121 10 m F 3 4 5 6 R135 ??? R136 ??? R137 ??? D7 D8 D9 L104 .68 + R147 820 - R148 47 1/2W C121 1m F CRT101 L105 .68 CRT SP103 R150 47 1/2W SP102 R149 820 - SP101 + C130 ???? C122 1m F G1 R153 1.5K D104 C131 330P - R151 820 G4 R154 15K 1/2W C132 .001 m F L106 .68 + G2 G2 R150 47 1/2W C123 1m F G1 H +12V V1 JP101 C114 10U +80V 1U-15C CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CVA1556N CORPORATION CUIRCUT BOARD 1T-04A CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CVA1556N CORPORATION CUIRCUT BOARD 1T-04B 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