LH1687 Datasheet, PDF (1/21 Pages) Sharp Electrionic Components – 240-output TFT-LCD Source Driver IC

LH1687
LH1687
DESCRIPTION
The LH1687 is a 240-output TFT-LCD source
driver IC used in such products as TV sets. The
LH1687 samples and holds three video signals of
R, G and B by sample and hold circuits
synchronized with the CK, and simultaneously
outputs the LCD drive voltage from all output pins.
FEATURES
• Number of LCD drive outputs : 240
• Output circuit form : Push pull output
• Power save function : By setting the LCD drive
output in a high-impedance condition, the current
source of the LCD drive output circuit is cut off,
which makes low power operation possible
• Sampling timing : Normal sampling operation and
3-point simultaneous sampling operation can be
selected
• Video signal setting : Available for stripe pixel
array panels and delta pixel array panels using
mode setting circuit
• Sampling clock frequency : 25 MHz (MAX.)
• Cascade connection
• Sampling sequence :
Output shift direction can be selected
OS1/OS240 or OS240/OS1
• Output amplitude voltage :
4.8 Vp-p (at 5.0 V supply voltage)
• Supply voltages
– VCCL (for logic system) : +3.0 to +5.5 V
– VCCA (for LCD drive system) : +3.0 to +5.5 V
• Operating temperature : –30 to + 85 ˚C
• Package : 264-pin TCP (Tape Carrier Package)
240-output TFT-LCD Source Driver IC
PIN CONNECTIONS
264-PIN TCP
TOP VIEW
1 OS1
VCCA 264
VCCL 263
GNDA 262
GNDL 261
TST5 260
VC 259
VB 258
VA 257
MODE 256
PS 255
RL 254
SAM 253
CTR 252
CK 251
SPIO 250
SPOI 249
TEST4 248
TEST3 247
TEST2 246
TEST1 245
GNDL 244
GNDA 243
VCCL 242
VCCA 241
NOTE :
Doesn't prescribe TCP outline.
240 OS240
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in
catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
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