PRODUCT GROUP

REV.

ISSUE DATE

TFT-LCD PRODUCT

A

2003.07.22

PAGE

SPEC. NUMBER

S864-1148

SPEC. TITLE

HT12X21-100 Product Specification

6

OF

22

B3-002-O (3/3)

A4 (210 X 297)

3.0 ELECTRICAL SPECIFICATIONS

[Ta = 25±2 ]

Parameter

Min

Typ

Max

Unit

Remark

Power Supply Voltage

3.0

3.3

3.6

V

Power Supply Current

-

240

mA

Note1

Permissible Input Ripple Voltage

-

-

100

mV

High Level Differential Input

Threshold Voltage

-

-

+100

mV

Low Level Differential Input

Threshold Voltage

-100

-

-

mV

Vcm

= 1.2V typ.

Back-light Lamp Voltage

-

600

-

Back-light Lamp Current

2.0

5.0

6.0

Back-light Lamp Frequency

30

60

80

KHz

Note 2

950

25 , Note 3

Lamp Start Voltage

1150

0

, Note 3

Lamp Life

10,000

hrs

0.7

W

3.0

W

Note 4

Power Consumption

3.7

W

Notes:

1. The supply voltage is measured and specified at the interface connector of LCM.

The current draw and power consumption specified is for VDD = 3.3V, Frame rate = 60

Hz and Clock frequency = 65MHz.

Test Pattern of power supply current

a) Typ : Vertical color bar pattern

b) Max : Gray 28 @ Vertical 2 Skip line pattern

2. The lamp frequency should be selected as different as possible from the horizontal

synchronous frequency and its harmonics to avoid interference, which may cause line

flow on the display

3. The voltage above this value should be applied to the lamps for more than 1 second to

startup. Otherwise the lamps may not to be turned on.