Preliminary Product Information S16240EJ1V0PM

7

µµµµPD161830

(2/2)

Pin Symbol

Pin Name

Pad No.

I/O

Description

AP

Output SW

ON/OFF

270

Input

MODE = L

This pin turns ON/OFF the BIAS circuit and turns on the output SW and amplifier.

When AP is H, the amplifier is set and the LCD is driving.

The amplifier output and output SW are turned on at the rising edge of AP,

starting the LCD drive. Note that the output SW is turned off at the rising edge of

STB and the output becomes Hi-Z (Hi-Z: High impedance). For details, refer to 4.1

Drive Timing by MODE and AP Signal.

For the AP input timing, refer to Switching Characteristics Waveform.

MODE = H

A sauce driver output circuit is changed to an amplifier output by grand fixation.

For details, refer to 4.1 Drive Timing by MODE and AP Signal.

GAM

External

γ -usage

selection

267

Input

When the

γ -correction power supply is input externally, switch GAM to H. If two or

more chips are used, be sure to input the

γ -correction power supply externally.

Figure 4–4 shows an input example of the

γ -correction power supply.

GAM = L: External

γ -correction power supply not input (open)

GAM = H: External

γ -correction power supply input

MODE

Driver output

functional change

265

Input

The drive mode of the sauce driver output by AP pin is set up as follows.

For details, please refer to 4.1 Drive Timing by MODE and AP Signal.

MODE = L: Normal drive mode

MODE = H: Grand output drive mode

γ -corrected power

supplies

294 to 280

−

These pins input the

γ -corrected power supplies from outside, the relationship

below must be observed. Also, be sure to stabilize the gray-scale-level power

supply during gray-scale voltage output.

BA

BIAS current

adjustment

function

266

Input

This pin adjusts the BIAS current and through rate of amplifier inside IC.

Select either the high power mode or low power mode.

In addition, as compared with the time of the low power mode, twice about as

many bias current as this flows at the time of high power mode.

BA = L: Low power mode

BA = H: high power mode

TEST input pin

311

Input

Set to H or leave open

TEST output pin

309,

310

Output Leave open.

Logic power

supply

254 to 256,

312 to 314

−

2.2 to 3.6 V

Driver power

supply

251 to 253,

321 to 323

−

4.5 to 5.5 V

Logic ground

257 to 259,

315 to 317

−

Ground

Driver ground

260 to 262,

318 to 320

−

Ground

Dummy1 to

dummy18

Dummy

241 to 247, 250,

279, 295, 324,

326 to 332

−

This pin is dummy.

Caution

→

→

→

→ logic input →

→

→

→

→

→

→

Follow this sequence during shift periods as well.