Zenith D60WLCD Series, Service Manual, Page: 51 / 88

CIRCUIT DESCRIPTIONS
D60WLCD - 923-03486
3-27
094A - SERVICING
CONTROL IC (ET2090F0A)
SCOPE
The ET2090F0A is a synchronization controller IC for
driver-equipped TFT active matrix panels.
FEATURES
1) Operation clock frequency: Max. 75MHz
2) Supports VGA, SVGA, XGA, SXGA, HDTV(720P) (In
case of SXGA used 1/2 dot clock)
3) Video signal polarity switching signal output
4) Is able to simultaneously drive three interface ICs
5) Is able to drive sampling and holding ICs
(ET6050S0B, ET6060D0A).
6) Set by 3 line serial interface
7) CMOS Si-Gate process
8) Package: 64-pin-QFP
BLOCK DIAGRAM
Horizontal
Count
HSYNC
VSYNC
SCS
SCLK
SDATA
RESET
Compression
Position Count
Serial
I/F
DXOUT
Generation
OSCI
TEST
Horizontal
Count
Vertical
Count
MSKOUT
CLP1~2
STSQE(R:G:B:)
XFR(R:G:B:)
SHCLK(R:G:B:)
CLYOUT
ENBY2(R:G:B:)
ENBY1(R:G:B:)
DYOUT
CLXOUT(R:G:B:)
STSQO(R:G:B:)
ENBX4(R:G:B:)
ENBX3(R:G:B:)
ENBX2(R:G:B:)
ENBX1(R:G:B:)
DXOUT(R:G:B:)
FRP
NRG
HPL
MSKOUT
CLP Generation
FRP
Generation
NRG
Generation
S/H Signal
Generation
ENBY1, ENBY2
CLYOUT
Generation
DYOUT
Generation
ENBX1-4
CLXOUT
Generation