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TLV5638: TLV5638控制VGA

Part Number: TLV5638

TI工程师您好,

    我希望使用TI公司TLV5638_12bDAC进行VGA(压控放大器)的控制,在实测中使用了通道A快速模式,同时刷新Buffer,但是输出电压上调一瞬间后便归零,是否有使用TLV5638输出稳定确定直流信号的方法?

非常感谢