PD16780_15 datasheet(8/18 Pages) RENESAS

Il numero della parte	PD16780

Spiegazioni elettronici	288/300 OUTPUT TFT-LCD SOURCE DRIVER

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Produttore elettronici	RENESAS [Renesas Technology Corp]

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Data Sheet S12608EJ1V0DS00

6

µµµµ PD16780

5. FUNCTION DESCRIPTION

5.1 Switching of Sample & Hold Circuits

Two sample-and-hold circuits are switched.

CX

Output

Sample & hold operation

L

Sample & Hold Circuit 1 (S&H1)

Sample & Hold Circuit 2 (S&H2)

H

Sample & Hold Circuit 2 (S&H2)

Sample & Hold Circuit 1 (S&H1)

5.2 Sample & Hold and Output

Relation between video signals C1, C2 and C3 and output pins and two sample & hold circuits.

5.2.1 300 output

CX

S1 (S300)S2 (S299)S3 (S298)S4 (S297)

···

S299 (S2)S300 (S1)

L

Sampling

C1-2 (C3-2)C2-2 (C2-2)C3-2 (C1-2)C1-2 (C3-2)

···

C2-2 (C2-2)C3-2 (C1-2)

Output

C1-1 (C3-1)C2-1 (C2-1)C3-1 (C1-1)C1-1 (C3-1)

···

C2-1 (C2-1)C3-1 (C1-1)

H

Sampling

C1-1 (C3-1)C2-1 (C2-1)C3-1 (C1-1)C1-1 (C3-1)

···

C2-1 (C2-1)C3-1 (C1-1)

Output

C1-2 (C3-2)C2-2 (C2-2)C3-2 (C1-2)C1-2 (C3-2)

···

C2-2 (C2-2)C3-2 (C1-2)

Remark

Cm-n = m: Video input, n: Sample & Hold

5.2.2 288 output

CX

S1 (S288)S2 (S287)S3 (S286)S4 (S285)

···

S287 (S2)S288 (S1)

L

Sampling

C1-2 (C3-2)C2-2 (C2-2)C3-2 (C1-2)C1-2 (C3-2)

···

C2-2 (C2-2)C3-2 (C1-2)

Output

C1-1 (C3-1)C2-1 (C2-1)C3-1 (C1-1)C1-1 (C3-1)

···

C2-1 (C2-1)C3-1 (C1-1)

H

Sampling

C1-1 (C3-1)C2-1 (C2-1)C3-1 (C1-1)C1-1 (C3-1)

···

C2-1 (C2-1)C3-1 (C1-1)

Output

C1-2 (C3-2)C2-2 (C2-2)C3-2 (C1-2)C1-2 (C3-2)

···

C2-2 (C2-2)C3-2 (C1-2)

Remark

Cm-n = m: Video input, n: Sample & Hold

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