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STV2050A Datasheet(PDF) 61 Page - STMicroelectronics |
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STV2050A Datasheet(HTML) 61 Page - STMicroelectronics |
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61 / 83 page  61/83 STV2050A - CURRENT REFERENCE 13 CURRENT REFERENCE The STV2050A delivers accurate and stabilized currents used to drive the convergence and focus functions. It has an embedded voltage reference (band gap), which is used to generate a reference current (IrefN) The nominal voltage on the REFN pin is 500 mV. The Irefn current must be adjusted to 500 uA. This is obtained by using a temperature stable external resistor of 1 k Ω. The reference voltage may be adjusted by using the BGA[4:0] bits in the D5 register. Figure 34. Current and Voltage References STV2050A - + REFC Band gap voltage reference REFN VREFN IREFN BGA[4:0] |
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