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AS3820 数据表(PDF) 13 Page - Dialog Semiconductor

部件名 AS3820
功能描述  16-Channel White LED Controller for LCD Backlight
PDF  52 Pages
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制造商  DIALOG [Dialog Semiconductor]
网页  http://www.dialog-semiconductor.com/
标志 DIALOG - Dialog Semiconductor

AS3820 数据表(HTML) 13 Page - Dialog Semiconductor

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AS3820
16-Channel White LED Controller for LCD Backlight
Rev. 1.1
Datasheet
© 2019 Dialog Semiconductor
www.dialog-semiconductor.com
13 of 52
05-Feb-2019
Figure 8.3 : Short-COMP Block Diagram
8.1.6 DAC
The reference voltage for the output stage is generated by an internal 10-bit DAC. The DAC reference can be
selected between 500mV and 800mV depending on register settings. The DAC is trimmed during production with
DACref = 800mV/VDAC = 250mV and DAQref = 500mV/VDAC = 250mV to guarantee an output current accuracy of
±0.5% on every current output.
Figure 8.4 : DAC and DAC Reference Generation



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