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LCX021AM View Datasheet(PDF) - Sony Semiconductor

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Description
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LCX021AM Datasheet PDF : 24 Pages
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LCX021AM
Input Signals
1. Input signal voltage conditions (Vss = 0V)
Item
Symbol
Min.
Typ.
Max.
Unit
H shift register input voltage (Low) VHIL
–0.5
0.0
HST, HCK1, HCK2, RGT (High) VHIH
4.5
5.0
0.4
V
5.5
V
V shift register input voltage (Low) VVIL
–0.5
0.0
MODE, BLK, VST, VCK,
PCG, ENB, DWN
(High) VVIH
4.5
5.0
0.4
V
5.5
V
Video signal center voltage
Video signal input range1
Common voltage of panel2
VVC
6.8
7.0
7.2
V
Vsig
VVC – 4.5
7.0
VVC + 4.5 V
Vcom VVC – 0.5 VVC – 0.4 VVC – 0.3 V
Uniformity improvement signal input
voltage (PSIGB, PSIGG, PSIGR)3
Vpsig
VVC ± 4.3 VVC ± 4.5 VVC ± 4.7
V
1 Video input signal shall be symmetrical to VVC.
2 The typical value of the common pad voltage may lower its suitable voltage according to the set
construction to use. In this case, use the voltage of which has maximum contrast as typical value. When the
typical value is lowered, the maximum and minimum values may lower.
3 Input a uniformity improvement signals PSIGB, PSIGG and PSIGR in the same polarity with video signals
SIGB1 to 6, SIGG1 to 6 and SIGR1 to 6 and which is symmetrical to VVC. Also, the rising and falling of
PSIGB, PSIGG and PSIGR are synchronized with the rising of PCG pulse, and the rise time trPSIG and fall
time tfPSIG are suppressed within 800ns (as shown in a diagram below).
PSIGB, PSIGG and PSIGR may change its suitable input voltage according to the drive conditions.
Uniformity Improvement Signals PSIGB, PSIGG and PSIGR Input Waveform
90%
PSIGB, G, R
VVC
PCG
10%
trPSIG
tfPSIG
Level Conversion Circuit
The LCX021AM has a built-in level conversion circuit in the clock input unit on the panel. The input signal level
increases to HVDD or VVDD. The VCC of external ICs are applicable to 5 ± 0.5V.
–6–
 

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