STV2247H(2009) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STV2247H
(Rev.:2009)

I²C bus-controlled multistandard single chip TV processor

STMicroelectronics 

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

Figure 14. Beam Current Limiter

Characteristics (Contrast)

Contrast (dB)

0

0dB Max.

-6dB

-6

-10dB

-12

Figure 15. Beam Current Limiter

Characteristics (Brightness)

Brightness (%)

100

50

-18dB

-18

VBCL (V)

-24

) 4.5

5

5.5

6

6.5

0

VBCL(V)

4.5

5

5.5

6

6.5

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

u Output Level

rod RGB Peak Limitation Curve or

APR Threshold max. (100 IRE)

and contrast max.

P APR Threshold min. (50 IRE)

te and contrast max.

le APR Threshold max. (100 IRE)

o and contrast min.

bsAPR Threshold min. (50 IRE)

and contrast min.

O Input Level (IRE)

) - 0

50

100

150

t(s Figure 17. Linear Volume Control Curve

c (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)

du 0

0

ro -20

-20

te P -40

-40

bsole -60

-60

-80

0

50

100

150

-80

0 10 20 30 40 50 60 70

Code (decimal)

Code (decimal)

42/86

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