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PDF LH1684F Data sheet ( Hoja de datos )
| Número de pieza | LH1684F | |
| Descripción | 5 V Drive 240 Outputs TFT-LCD Source Driver | |
| Fabricantes | Sharp Electrionic Components | |
| Logotipo |  |
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SHARP
[ SPEC No. 1 E L 0 8 8 1 3 2 1
ISSUE: Aug. 29. 1996
SPECIFICATIONS
Product Type 5 V Drive 240 Outputs TFT-LCD Source Driver’
Model No.
LH1684F
Kl’his specifications contains 34 pages including the cover and appendix.
If you have any objections,please
contact us before issuing purchasing order.
CUSTOMEARCSCEPTANCE
DATE:
BY:-
PRESENTED
Y. SHIOTAw
Dept. General Manager
REVIEWEBDY:
PREPAREBDY:
,_ ---. - ._ ;*
ENGINEERINDGEPARTME!NT..-- - -___.
LOGIC IC ENGINEERING CENTER
TENRIINTEGRATECDIRCUITS(I0 GRQUP7'::
SHARP CORPORATION
‘-; --- . -.”
._ ,
1 page  
SHARP
4. Block Diagram
RL
CSl
cs2
TST
TSTl
TST2
TST3
LH 1684F
Numerals in circles indicate the pin number.
Bkdirectional shift
Control
logic
3
1
vcc GND
............................
6, --_-_-_-____------_--
OS1 ..........................OS240
Block name
Control logic
I Block function i
I Used to create signals necessary for controlling cascade sequence
’ and for discharge signal and sampling signals creation circuits, etc.
Bi-directional shift register
~Used as transfer circuit of video sampling start signals.
’ It is possible to set the direction of sampling start signals sequence
/ by setting the FVL pin, from OS1 to OS240 or from OS240 to OS1 .
Sampling signal creation circuit Used to create the sampling signals corresponding to each output
j pin based on the sampling start signals transferred by the bi-
i directional shift register.
Mode setting circuit
/ Used to set the form of the video signals to be sent to the sample
1and hold circuits.
Sample and hold circuit
Used to sample the video signals input from the mode setting circuit I
:at the timing of the sampling signals and hold the sampling datas I
I until the next sampling operation.
Output circuit
i The circuit comprises an operational amplifier and an output buffer i
1and outputs the voltage corresponding to the data held in the
I
/sample and hold circuit.
5 Page 
SHARP
LH1684F
(4) Examples of LCD panel connection
With the video signal mode setting function of (2) it is possible to connect LCD panel to the
stripe pixel array panel and delta pixel array panel as shown in the following examples.
(a) Example of stripe pixel array panel connection
Video signals p 7 f
‘1st line
Sampling
data
2nd line mR::;:-;G;:: B R
I 1I I
3rd line ~:R]::-::G:: B R
I II I
1; 1d 1; 1Ii /
IiIi
IB IR IG /B 1
IIII
MODE=“H”
MODE=“H”
Connection of video signal input pins
Videosignal input pin ; VA / VB 1 VC
Video signal
‘G/RIB
Setting of video signals sampled by output circuits and MODE pin condition
1 lstline
I 2nd line 1 3rd line / After 4th line
OS(3n+l)
j R/R
OS (3n+2)
GIG
OS (3n+3)
MODE pin setting
BiB
U,,” 1 “,,”
jR
I
IG
/
B
; “H”
;R
/
I
G
jB
;!. “H”
(n=O, 1,2,. . . ,79)
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet LH1684F.PDF ] | |
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