Audio Line Driver

The video application uses LT1206 as a main components because it has output  derive capability and suitable bandwidth. So that the LT1206 can also be used for audio applications. Here is the schematic diagram: In this circuit the LT1206 combined with the LT1115 low distortion, that has a very low noise audio buffer with a gain of 10. The frequency […]

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Video Line Driver

For driving multiple video cables, the suitable component is LT1206 because it has low output impedance, 60MHz bandwidth and 250mA output current capability. But don’t forget about unterminated line effect when driving multiple cables. A crosstalk to other lines caused by a reflected wave is propagate back to the driver because the driver output is non zero impedance. Here is […]

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BQ24105 Switch Mode Lead Acid Battery Charger

Switch mode circuits can implement the lead acid battery charger with a more efficient. It can be constructed using bq24105 battery charger controller. The bq24105 was originally designed to charge single-, two- or three-cell Li-polymer and Li-ion  battery packs. The bq24105 doesn’t has a feature  to control lead acid battery charger termination. So external circuitry is added  to enable this […]

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Max454 Video Switcher

Installing the camera in office, home, or the shop becomes economically feasible because the price of security camera going down. It is not efficient if we provide a dedicated monitor for every installed camera. If the CRT monitor is used to display static image from only one camera, it might suffer phosphor  burn. So we need video switcher circuit to […]

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