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MSK645 Dataheets PDF



Part Number MSK645
Manufacturers MSK
Logo MSK
Description HIGH VOLTAGE VIDEO DISPLAY DRIVER
Datasheet MSK645 DatasheetMSK645 Datasheet (PDF)

ISO-9001 CERTIFIED BY DSCC M.S.KENNEDY CORP. FEATURES: 65 Vpp Output Voltage 150 MHz Typical Bandwidth Transition Times Typically <3.0 nS Cost and Space Efficient Package Electrically Isolated Case Gain Fixed Internally HIGH PERFORMANCE, HIGH VOLTAGE VIDEO DISPLAY DRIVER 645 (315) 701-6751 4707 Dey Road Liverpool, N.Y. 13088 MIL-PRF-38534 CERTIFIED DESCRIPTION: The MSK 645 is an amplifier designed specifically to suit the needs of todays high resolution CRT display monitors. With a typical.

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ISO-9001 CERTIFIED BY DSCC M.S.KENNEDY CORP. FEATURES: 65 Vpp Output Voltage 150 MHz Typical Bandwidth Transition Times Typically <3.0 nS Cost and Space Efficient Package Electrically Isolated Case Gain Fixed Internally HIGH PERFORMANCE, HIGH VOLTAGE VIDEO DISPLAY DRIVER 645 (315) 701-6751 4707 Dey Road Liverpool, N.Y. 13088 MIL-PRF-38534 CERTIFIED DESCRIPTION: The MSK 645 is an amplifier designed specifically to suit the needs of todays high resolution CRT display monitors. With a typical bandwidth of 150 MHz and transition times typically under 3.0nS the MSK 645 can easily drive monitors with resolutions of up to 1280 x 1024. The output can swing up to 65 Vpp and gain is internally set to minimize external component count. The MSK 645(B) is available screened to MIL-PRF-38534 and comes in a space efficient package that is electrically isolated from the internal circuitry and can be attached directly to a heat sink for efficient thermal dissipation. EQUIVALENT SCHEMATIC www.DataSheet4U.com TYPICAL APPLICATIONS CRT Driver for SVGA Display Driver for Systems with up to 1280 x 1024 Display Resolution High Voltage Fixed Gain Amplifier 1 PIN-OUT INFORMATION 1 2 3 4 5 Video Input Ground VBIAS Ground Video Output 6 7 8 9 Ground +VHV Ground Ground Rev. D 10/05 ABSOLUTE MAXIMUM RATINGS +VHV +VIN +VBIAS IOUT High Voltage Supply Input Voltage Bias Input Voltage Peak Output Current ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ 7 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ +80V ±5V +10V 200mA ○ ○ TST Storage Temperature Range TLD Lead Temperature Range (Solder 10 Seconds) TJ Junction Temperature TC Case Operating Temperature MSK645 MSK645(B) ○ ○ ○ ○ ○ ○ ○ ○ -65°C to +150°C +300°C ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ +175°C ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ -40°C to +85°C -55°C to +125°C ELECTRICAL SPECIFICATIONS Parameter STATIC CHARACTERISTICS Quiescent Current (VHV) Quiescent Current (+VBIAS) VHV Power Supply Range VBIAS Power Supply Range Video Input Voltage Thermal Resistance 2 Test Conditions 1 Group A Subgroup MSK 645(B) Min. Typ. Max. Min. MSK 645 Units Typ. Max. VIN=No Connect RL=∞ VIN=No Connect RL=∞ 1,2,3 1,2,3 - 20 4 0.5 - 0.6 0.01 60 5 0.85 26 2.0 0.5 80 10 1.2 30 20 4 0.4 - 0.6 0.01 60 5 0.85 26 2.0 0.5 80 10 1.3 32 mA mA V V V °C/W V OUT=+50VDC Output Stage Junction to Case @ 125°C 1,2,3 - DYNAMIC CHARACTERISTICS High Level Video Output Voltage Video Gain Video Gain Flatness 2 6 Low Level F=1MHz;VOUT=+15Vto+45V F=10Hz to 60MHz;VOUT=30VPP V OUT=+15Vto+45V VOUT=10VPP VINTR=10nS 4 4 4 4 4 50 45 100 59 5 62 10 80 50 45 100 59 5 60 10 80 V V V/V dB nS % MHz ±1.0 ±2.0 3.0 150 4.0 10 - ±1.0 ±3.0 3.0 150 5.0 12 - Video Output Rise/Fall Time Video Output Overshoot Bandwidth -3dB 2 2 NOTES: 1 +VHV=60V; +VBIAS=5V; RL=10KΩ; unless otherwise specified. 2 Parameter is guaranteed by design but not tested. Typical specifications are representative of actual device performance at 25°C but are for reference only. 3 Military grade devices ('B' suffix) shall be 100% tested to subgroups 1,2,3 and 4. 4 Subgroup 5 and 6 testing available upon request. TA=TC=+25°C 5 Subgroup 1,4 Subgroup 2,5 TA=TC=+125°C Subgroup 3,6 TA=TC=-55°C 6 Refer to the video clip point curve on the Typical Performance Curves page. 7 Continuous operation at or above absolute maximum ratings may adversely effect the device performance and/or life cycle. 2 Rev. D 10/05 APPLICATION NOTES BLACK LEVEL CONTROL Unlike many currently available video amplifiers, the MSK 645 is a D.C. coupled device. D.C. coupling affords the user direct black level control. A video input voltage of approximately 0.85 volts will set the output voltage to 50VDC (black level for +VHV=60VDC). Black level control grants the user flexibility in the application of the amplifier. For example, the user could apply a 0.85VDC level to the video input to bias the output at the black level (approximately 50V for VHV=60V) and have input video information swing from 0.85 to 1.5V causing the output to swing from the black level towards white (zero). This configuration would dissipate the least amount of power and is most common. Another possible circuit configuration could be to D.C. bias the video input pin so that the output is at 1/2VHV. The output video signal could then swing linearly from (+VHV-10V) to (ground + 10V). Careful consideration must be paid to device power dissipation in this configuration since it will be very high. OUTPUT PROTECTION High voltage arcing can occur in the CRT being driven and cause severe damage to the MSK 645 output unless certain precautions are taken. The clamp diodes D1 and D2 (see figure 1) will keep the voltage at the output at a safe level. These diodes should have a low series resistance and shunt capacitance as well as a high surge rating (FDH400 is recommended). In the event of an arcover, Rb limits the current flowing through the clamp diode and Ra .


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