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S6D0114 Datasheet(PDF) 13 Page - Samsung semiconductor |
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S6D0114 Datasheet(HTML) 13 Page - Samsung semiconductor |
13 / 143 page S6D0114 132-RGB X 176-DOT 1-CHIP DRIVER IC FOR 262,144-COLOR TFT-LCD DISPLAY Preliminary 13 Table 4. Power supply pin description (continued) Symbol I/O Description VBS I Reference voltage for step-up circuit3. REGN, REGP I/O Input pins for reference voltages of VREG1OUT, and VREG2OUT when the internal reference-voltage generation circuit is not used. Leave these pins open when the internal reference-voltage generation circuit is used. VREG1OUT O This pin outputs a reference voltage for VREG1 between AVDD and VSS. When the internal reference voltage is not used, the reference voltage can be generated from the voltage of REGP. Connect this pin to VREG1 and a capacitor for stabilization. When this pin is not used, leave it open. VREG2OUT O This pin outputs a reference voltage for VREG2 between VSS and VGL When the internal reference voltage is not used, the reference voltage can be generated from the voltage of REGN. Connect this pin to VREG2 and a capacitor for stabilizatio0n. When this pin is not used, leave it open. VcomOUT O A power supply for the TFT-display counter electrode. The alternating cycle can be set by the M pin. Connect this pin to the TFT-display counter electrode. This pin is also used as equalizing function: When EQ = “High” period, all source driver’s outputs (S1 to S396) are short to Vcom level (Hi-z). In case of VcomL < 0V, equalizing function must not be used. (Set EQ bit (R07h) to be “00” for preventing the abnormal function.) VcomR I A reference voltage of VcomH. When VcomH is externally adjusted, halt the internal adjuster of VcomH by setting the register and insert a variable resistor between GVDD and VSS. When this pin is not externally adjusted, leave it open and adjust VcomH by setting the internal register. VcomH O This pin indicates a high level of Vcom generated in driving the Vcom alternation. Connect this pin to the capacitor for stabilization. VcomL O When the Vcom alternation is driven, this pin indicates a low level of Vcom. An internal register can be used to adjust the voltage. Connect this pin to a capacitor for stabilization. When the VCOMG bit is low, the VcomL output stops and a capacitor for stabilization is not needed. VGH O/ Power A positive power output pin for gate driver, internal step-up circuits, bias circuits, and operational amplifiers. Connect a capacitor for stabilization. Interconnect this pin to VCI3 pin. VGL O/ Power A Negative power output pin for gate driver, bias circuits, and operational amplifiers. Connect a capacitor for stabilization. When internal VGL generator is not used, connect an external-voltage power supply higher than -15.0 V. |
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