STV2247H 查看數據表（PDF） - STMicroelectronics

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产品描述 (功能)

生产厂家

STV2247H

I2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR

STMicroelectronics 

STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS

Figure 14. Beam Current Limiter

Characteristics (Contrast)

Contrast (dB)

0

0dB Max.

-6dB

-6

-10dB

-12

-18dB

-18

VBCL (V)

-24

4.5

5

5.5

6

6.5

Figure 15. Beam Current Limiter

Characteristics (Brightness)

Brightness (%)

100

50

0

VBCL (V)

4.5

5

5.5

6

6.5

Figure 16. Automatic RGB Peak Regulation (APR) / RGB Peak Limitation Characteristics

Output Level

RGB Peak Limitation Curve or

APR Threshold max. (100 IRE)

and contrast max.

APR Threshold min. (50 IRE)

and contrast max.

APR Threshold max. (100 IRE)

and contrast min.

APR Threshold min. (50 IRE)

and contrast min.

Input Level (IRE)

0

50

100

150

Figure 17. Linear Volume Control Curve

(7 bits, reg. 05 d6-d0, reg. 05 d7 = 0)

Figure 18. Non-Linear Volume Control Curve

(6 bits, reg. 05 d6-d1, reg. 05 d7 = 1)

0

0

-20

-20

-40

-40

-60

-60

-80

0

50

100

150

Code (decimal)

-80

0

10 20 30 40 50 60 70

Code (decimal)

42/86

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