STV2247H(2009) 查看數據表（PDF） - STMicroelectronics

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STV2247H
(Rev.:2009)

I²C bus-controlled multistandard single chip TV processor

STMicroelectronics 

STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

Symbol

BRIGbcl

Clp

SAF-thr

SAF-hold

Parameter

Brightness Attenuation at VTH4

High Clamping Voltage

Safety Threshold

Supply Hold Voltage

Test Conditions

Referred to VCC1

Min. Typ. Max. Unit

100

%

6.5

V

0.8

1

1.2

V

3

V

4.10.11 Automatic RGB Peak Regulation (APR) / RGB Peak Limitation

See Figure 16 on page 42.

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

WR10 d0 = 1

APR/RGB

Peak

Maximum Output Level on RGB

outputs when APR/RGB Peak Limi-

tation ON

Contrast Max., drive Max., no load

APR threshold Min. (50IRE)

APR threshold 70IRE

APR threshold Max. (100IRE) (see

2.14

3.0

4.28

V

Note 10)

) iAPR-D

t(s iAPR-C

Discharging Current

Charging Current

duc GAPRMAX APR max gain

5.5

µA

5.25

mA

APR ON = WR10 d0 = 1

RGB output amplitude with APR ON

versus RGB output amplitude with

+2.5

dB

APR OFF

Pro GAPRMIN APR min gain

APR ON = WR10 d0 = 1

RGB output amplitude with APR ON

versus RGB output amplitude with

-3.0

dB

APR OFF

lete Note 10: At maximum contrast, APR and RGB peak limitation have the same characteristics. The APR regulation level

bsolete Product(s) - Obso is tracked on contrast. The RGB peak limitation level is not tracked on contrast.

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