Pinards PDF

LMT LM – Monolithic Triple NS CRT Driver, Package: to , Pin Nb=9. The is an integrated high voltage CRT driver circuit designed for use in. Download National Semiconductor Corporation LMT pdf datasheet file. LMT Datasheet PDF Download – Monolithic Triple ns CRT Driver, LMT data sheet.

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Used in conjunction with an LM, a complete video chan.

Increasing the value of L1 will speed up the circuit as well as increase overshoot. To prevent this, leads to the. Used in conjunction with an LM, a complete video chan- nel from monitor input to CRT cathode can be achieved. The rise time shows a datashret variation relative to the cen.

PDF LM2439T Datasheet ( Hoja de datos )

V CC clamp diodes. To prevent this, leads to the video amplifier input circuit should be shielded, and input cir- cuit wiring should be spaced as far as possible from output circuit wiring. This example assumes a capacitive load of 8 pF and no re- sistive load. Note that the components are placed so. The designer should lm2439g that lm439t the load capacitance.

Because of its high small signal bandwidth, the part may os- cillate in a monitor if feedback occurs around the video chan- nel through the chassis wiring.


The fall time shows a. Note that the components are placed so that they almost line up from the output pin of the LM to the blue cathode pin of the CRT connector.

This example assumes a capacitive load of 8 pF and no re.

This is done to minimize the length of the video path between these two components. The designer should note that if the load capacitance is increased the AC component of the total power dissipation will also increase. Figure 11 shows routing and component placement on the.

Once the optimum values are determined. The cath- ode of D15 is connected to V CC very close to decoupling ca- pacitor C55 see Figure 12 which is connected to the same section of the ground plane as D Ferrite core inductors from J.

The datazheet references are recommended: Figure 10 is the sche. Fatasheet board provides a good example of a layout that can be used as a guide for future layouts.

The val- ues shown in Figure 9 can be used as a good starting point for the evaluation of the LM A typical application of the LM is shown in Figure Once the optimum values are determined the variable resistors can be replaced with fixed values.


Also, the length of the signal traces from the preamplifier to the LM and from the LM to the CRT cathode should be as short as pos- sible. This graph gives the designer the information.

The anode of protection diode D14 is con. Note also that D14, D15, R29 and D13 are. Also, the length of the. Per- formance is ideal for x resolution displays with pixel clock frequencies up to 75 MHz. It is very important to use induc- tors with very high self-resonant frequencies, preferably above MHz. This minimizes parasitic capacitance in the video path and also enhances the effectiveness of the pro- tection diodes.

LMT datasheet, Pinout ,application circuits Monolithic Triple Ns CRT Driver [Obsolete]

Note the location of the following components: This is done to. It is very important to use induc. Figure 6 shows the maximum power dissipation of the LM vs Frequency when all three channels of the device are driving an 8 pF load with a 40 V p-p alternating one pixel on, one pixel off signal.

This demonstrates the importance. Figure 4 shows the performance of the LM in the datashest.