UPD161622 NEC, UPD161622 Datasheet - Page 30
UPD161622
Manufacturer Part Number
UPD161622
Description
396 OUTPUT TFT-LCD SOURCE DRIVER
Manufacturer
NEC
Datasheet
1.UPD161622.pdf
(103 pages)
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5.4 Display Timing Generator
5.4.1 Drive timing
timing of one line selection period generated based on the calibration time (t
shown in the figure below. One line selection period is made up of a pre-charge period, a source output period, and
the
setting register (R46) and calibration register (R45), respectively, based on the following expressions.
30
The
1 line selection period = t
Pre-charge period = t
Source output period = t
t
t
t
CLK
CLKpr: Pre-charge peiod setting register clock number [R46: PLIMn] n
1 CLK = 1/f
f
cal
pr
sout
OSC
= (1/f
: Calibration setting time [R45]
: Oscillator frequency
= t
PD161622 output control clock. The pre-charge and source output periods are set by the pre-charge period
cal
: Calibration setting time (t
PD161622 generates the TFT-LCD drive timing inside the
cal
OSC
- (t
) x (CLK
OSC
pr
+ 3 CLK)
pr
+ 2 CLK)
pr
sout
cal
cal
) clock number = t
Data Sheet S15649EJ2V0DS
cal
(1f
OSC
)
PD161622. The TFT-LCD panel is driven at the
cal
) set by the calibration function, as
PD161622
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