Data Sheet S12581EJ1V0DS00

8

µµµµ PD16640B

5. RELATIONSHIP BETWEEN OUTPUT CIRCUIT AND D/A CONVERTER

Data format : 1 pixel data (6 bits)

× RGB (3 dots)

Input width : 18 bits

R,/L = H (right shift)

Output

S1

S2

S3

…

S308

S309

Data

D00 to D05

D10 to D15

D20 to D25

…

D10 to D15

D20 to D25

R,/L = L (left shift)

Output

S1

S2

S3

…

S308

S309

Data

D00 to D05

D10 to D15

D20 to D25

…

D10 to D15

D20 to D25

6. OPERATION OF OUTPUT BUFFER

The output buffer consists of an operational amplifier circuit that does not perform precharge operation.

Therefore, driver output current IVOH1/2 is the charging current to the LCD, and IVOL1/2 is the discharging current.

<LCD panel driving waveform of

µµµµ PD16640B>

1

horiontal period

Write

(IVOL1/2/IVOH1/2

)

Write

(IVOL1/2/IVOH1/2

)

VDD2

Sn

VSS2