STV9211 datasheet(9/37 Pages) STMICROELECTRONICS

部件名	STV9211

功能描述	150 MHz PIXEL VIDEO CONTROLLER FOR MONITORS IN DC-COUPLING MODE

PDF	37 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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STV9211

Functional description

2.4

Contrast adjustment (8 bits)

The contrast is adjusted simultaneously on, the 3 RGB channels via three internal amplifiers

delivering a 48dB attenuation range (see Register 1, I2C table 1 and

Figure 5). .

2.5

Brightness/Drive selection (1 bit)

The brightness position is selectable by I2C (Register 13, bit6. See I2C table 4).

There are 2 cases:

Figure 5: Contrast adjustment

bit6=0

The brightness is located before the Drive (as for the TDA9210).

The advantage is to keep the “White balance” tracking when

changing the brightness level.

bit6=1

The brightness is located after the Drive.

The advantage is to perform the “White balance” tracking faster

(typically one adjustment less than in the previous case)

Adjustment

Contrast

CRT / 01

256 (8 bit) / 0,19 dB

Channel

name / address

Number step / resolution

min / max

attenuation

0 / - 48 dB

CRT = min

T =

Typ

3 channels

Simultaneously

Output

BLK

Black level

InfraBlack level

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