MC44462B Просмотр технического описания (PDF) - Motorola => Freescale

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MC44462B

Y–C Picture–in–Picture (PIP) Controller

Motorola => Freescale 

MC44462

to prevent the PIP from interfering with the main picture

sync pulses.

PIP Y Position Register

are matched. In addition to this, the tint of the PIP can be

varied ±10° in a total of 64 steps by changing the value of

these bits to suit viewer preference.

Sub–address = 07h

PIP Luma Delay Register

Y Position Bits (YPS0–5) – D0–D5

Moves the PIP start position from the top to the bottom

Sub–address = 0Ah

Y Delay (YDL0–2) – D0–D2

edge of the display in 64 steps. There is protection circuitry to

Since the Chroma passes through a bandpass filter and

prevent the PIP from interfering with the main picture sync

pulses.

PIP Chroma Level Register

Sub–address = 08h

Chroma (C0–5) – D0–D5

The color of the PIP can be adjusted to suit viewer

preference by setting the value stored in these bits. A total of

the color decoder, it is delayed with respect to the Luma

signal. Therefore, to time match the Luma and Chroma these

bits are set to a single value determined to be correct in the

application.

Pip Fill/Test Register

Sub–address = 0Ch

PIP Fill Bits (PIPFILL0–1) – D0–D1

64 steps varies the color from no color to maximum. This

May be used to fill the PIP with one of three selectable

control acts in conjunction with the auto phase control.

solid colors

PIP Tint Level Register

Test Register Bits (INTC0 and MACR0) – D6–D7

Sub–address = 09h

Used for production test only.

Tint (T0–5) – D0–D5

An auto phase control compares the main color burst to

the internally generated pseudo color burst so that the tints

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MOTOROLA ANALOG IC DEVICE DATA

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