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AS3820 Arkusz danych(PDF) 43 Page - Dialog Semiconductor

Numer części AS3820
Szczegółowy opis  16-Channel White LED Controller for LCD Backlight
PDF  52 Pages
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Producent  DIALOG [Dialog Semiconductor]
Strona internetowa  http://www.dialog-semiconductor.com/
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AS3820
16-Channel White LED Controller for LCD Backlight
Rev. 1.1
Datasheet
© 2019 Dialog Semiconductor
www.dialog-semiconductor.com
43 of 52
05-Feb-2019
8.9 Timing Characteristics
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
SCLK frequency
fSCLK
0
10
MHz
xCS setup time
t1
50
ns
xCS hold time
t2
100
ns
xCS disable time
t3
100
ns
SDI setup time
t4
5
ns
SDI hold time
t5
5
ns
SCLK rise time
t6
5
ns
SCLK fall time
t7
5
ns
SCLK low time
t8
40
ns
SCLK high time
t9
40
ns
Output valid from SCLK low
t10
10
ns
SCLK falling to xCS rising edge
t11
50
ns
Figure 8.31 : PCB FR4, 1cm Distance from Ground
8.10 Thermal Characteristics QFN48
The thermal characteristics of the devices were measured at 25°C ambient temperature. The device was mounted on
a double sided FR4 PCB with the bottom layer used as cooling area.



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