180V CRT Driver CVA24150T FEATURES @ Fall Time (CLoap = 10pf)... 2... eee eee 10ns @ RiseTime (CLoap = 10pf)... 2.22. cece ee eee eee 7ns @ Fall Time (CLoap = 20pf) .... 2... eee eee 13ns @ RiseTime (CLoap = 20pf)... 2.0. cee eee 10ns @ Fall Time (CLoap = 30pf) .... 2... cece eee 15ns @ RiseTime (CLoap = 30pf)... 2... cece eee 13ns @ Swing Voltage ......... 0c eee eee eee 100Vp-p @ Supply Voltage... 2.2... c eee eee 180V BENEFITS @ Low Power @ Smaller Package APPLICATIONS @ High Definition Television @ Projection Television @ Arcades @ TV Monitors CORPORATION , DESCRIPTION The CVA24150T is a single channel, very high voltage amplifier, designed to drive a CRT. It is capable of delivering 65MHz at 100Vp-p. It features no cross-over distortion for excellent linearity. Emitter peaking option is available to adjust the high frequency response. CVA24150T features high gain to match existing pre-amplifier drive capability. ORDERING INFORMATION Part Package CVA24150T TIA Temperature -20C to +100C CONNECTION DIAGRAM GND GND EMITTER PEAKING Vpias TAB = GND TOP VIEW 1P-08 T11A PACKAGE SIMPLIFIED SCHEMATIC DIAGRAM Vout 8,9 EMITTER PEAKING 1P-07 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025VA24150T calogic CVA24150 ABSOLUTE MAXIMUM RATINGS Supply Voltage... 0... eee eens 200V Operating Temperature ................ -20C to +100C Storage Temperature.................. -25C to +100C Lead Temperature ... 0... ee eee +300C DC ELECTRICAL CHARACTERISTICS Vs = 180V, CL = 10pF, DCinput bias = 12V, Vin = 3.4V, Vout = 100p-9, Tcase = +25C. See Figure 1. SYMBOL CHARACTERISTICS MIN TYP MAX UNITS lec Supply Current @ 1MHz 35 40 mA Voutbe Output DC Level 65 70 75 Vv Av Voltage Gain 24 26 28 Vv AC ELECTRICAL CHARACTERISTICS Vs = 180V, CL = 10pF, DCinput bias = 12V, Vin = 3.4V, Vout = 100Vp-p, Tease = +25C. See Figure 1. SYMBOL CHARACTERISTICS MIN TYP MAX UNITS tr Rise Time 10 12 ns tt Fall Time 10 12 ns BW Bandwidth (Note 1) 70 MHz Le Linearity 2 5 % Os Overshoot 3 7 % Note 1: -3dB at Vp-p = 100V FIGURE 1. TEST CIRCUIT 1 qd L1 Vbias OUTPUT 2 R2 Aq Vvv C, Vin 33 X D2 y L 22 82pF v TAB Ci= 1.0,.F R1 = 470 D1 = FDH400 C2 = 1.0pF R2 = 5.1KQ D2 = FDH400 CL = 10pF (Including Parasitics) L1 = 560nH Q1 = 2N5770 1Q-50 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025CVA24150T calogic CORPORATION FIGURE 2. APPLICATION CIRCUIT DC BIAS Veco 110 R2 C1 C2 a CVA24150T Vin oN VIDEO 2 INPUT Rt N.C. = 6,7,10 C7 R1 = 15Q C1=0.01NF D1, D2 = FHD400 R2 = 470 C2=100HF = | = 150 - 330nH R38 = 47(1/2W)Q C3 =0.1pF R4 = 8200 C4 = 100pF C5 =2.2uF C7 = 40 - 120pf 18.01 FIGURE 3. CVA24150T Transfer DC Characteristics 180 160 140 0 0 0 020507101215 1.7 202225 2730 3235374042 4547 50 Vin (VOLTS) 18-02 o (MW) HAMOd Bb APPLICATION INFORMATION The CVA24150T is a very high voltage amplifier. Using standard Cascode topology, it is designed primarily to meet the requirement of High Definition Television (HDTV), Projection Television, arcade displays, etc. CVA24150T can deliver 100Vp-p yet require only 180V supply voltage. CVA24150T frequency resplonse is excellent, can energize 20ns pixels at 100Vp-p into 10pf. At 40pf load, rise time is 18ns. CVA24150T has very high gain (~34) to match any of the available pre-amplifiers. An emitter peaking option is also provided to adjust the high frequency response. The product is housed in industry standard 11 lead TO-220 power package. Thermal Considerations The transfer characteristics of the amplifier 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. The CVA24150T cannot be used without heat sinking. Figure 3 shows the power dissipated in each channel over the operating voltage range of the device. Under white screen conditions, i.e.: 7OV output, dissipation increases to 11W total. The CVA24150T case temperature must be maintained below +100C. If the maximum expected ambient temperature is +50C, then a heat sink is needed with thermal resistance equal to or less than: _ (100 50C) | Ass oO Rth = T1W =4.5C/W The CVA24150T maximum load is 600Q to ground or V*. The output of CVA24150T is not short circuit proof. Any resistance to V* or Ground should be > 600Q. CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025CORPORATION a CVA24150T TYPICAL CHARACTERISTICS RISE TIME 1.95V Voc = 180V = CL= 10pt Q > 3 S a -5O0mV -40ns 160ns 20ns/DIV 18-07 RISE TIME 1.95V Voc= 180V = C, = 20pf Q > E S a -50mV -40ns 160ns 20ns/DIV 18-09 RISE TIME 1.95V Voc = 180V = CL= 30pf Q > 3 S a -5O0mV -40ns 160ns 20ns/DIV 18-11 1.95V 200mV/DIV -5O0mV -40ns 1.95V 200mV/DIV -50mV -40ns 1.95V 200mV/DIV -5O0mV -40ns FALL TIME Voc = 180V C_ = 10pf 160ns 20ns/DIV 18-08 FALL TIME Voc= 180V ClL= 20pt 160ns 20ns/DIV 18-10 FALL TIME Voc = 180V C_ = 30pf 160ns 20ns/DIV 18-12 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025CVA24150T calogic TYPICAL CHARACTERISTICS (continued) RISE TIME FALL TIME 1.95V 1.95V Voc = 180V C_ = 40pf Voc = 180V C_ = 40pf 200mV/DIV 200mV/DIV -5O0mV -5O0mV -40ns 160ns -40ns 160ns 20ns/DIV 18-13 20ns/DIV 18-14 Vout vs Vin Voc = 180V Vout (VOLTS) QO 0 02 05 07 1.0 12 15 1.7 20 22 25 2.7 3.0 32 35 3.7 4.0 42 45 47 5.0 Vin (VOLTS) 1a47 Vout VS FREQUENCY vs Icc 120 90 _ loc 100 ya 80 > 80 / [-~_ 70 e / Vout _ o 9 = 69 60 2 5 3 2 35 = > 40 50 20 40 0 30 10 20 30 50 70 80 90 FREQUENCY (MHz) 18-08 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025