LC74402 查看數據表（PDF） - SANYO -> Panasonic

零件编号

产品描述 (功能)

生产厂家

LC74402

PIP Controllers

SANYO -> Panasonic 

LC74401E, 74402, 74402E

Sub-screen Size

The vertical and horizontal directions are controlled independently.

1. Vertical size

• 1/3 to (3) scan lines are compressed to a single scan line

• 1/4 to (4) scan lines are compressed to a single scan line

2. Horizontal size

• 1/3 to A/D clock: D/A clock = 1:3

• 1/6 to A/D clock: D/A clock = 1:6

The data required for 1/6 reduction is one half that for 1/3 reduction.

• Aspect correction function

The horizontal direction size is adjusted by changing the VCO oscillator frequency (system clock).

This can be adjusted from –30% to +30%.

However, care is required when using this function. See the Application Manual for details.

• 2E mode

If 2E mode is used when 1/3 size is selected, the horizontal direction is expanded by a factor of two.

This is normally used only for special functions such as split mode.

Number of Sub-screens

Between one and eight sub-screens can be specified (when 1 Mb of VRAM is used).

Split mode

Refer to the Application Manual for details on using these modes.

No. 4872-7/19

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