STV2236 datasheet(41/86 Pages) STMICROELECTRONICS

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4.10.12 RGB Outputs

Figure 12. Black Stretch Static Characteristics

(IRE)

Figure 13. Auto Flesh Characteristics

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VB/W

Output Signal Amplitude B/W

0.7V B/W on Y/CVBS inputs, Contrast

Max., Drive Max., Saturation and

bright Nom., APR OFF, no load

2.8

VBLUE

Output Signal Amplitude

75/100 color bar, no Y nom. settings,

APR OFF, no load

1.5

VPP

ISINK

Output Sinking Current

1.2

1.5

ISOURCE

Output Source Current

1.8

ROUT

Internal Output Resistance

150

VBLANK

Blanking Level

No load

0.2

0.4

VCLIP

High Clipping Level

No load

6.8

Black-ctr

Variation of black level with contrast

Black-sat

Variation of black level with satura-

tion

Rel-Black

Relative Variation in black level be-

tween the three channels

20dB contrast variation

Overall brightness range

±5% VCC1

Black-T

Black Level Thermal Drift

mV/°C

Track

Tracking between Luminance and

Chrominance signals

At typical saturation

From Max. Contrast (0 dB) to -10 dB

Contrast

2dB

Bwidth

Bandwidth of output signals at -3dB

YUV inputs to RGB outputs

OSD RGB inputs to RGB outputs

EXT. RGB inputs to RGB outputs

MHz

100

-15

100

YOUT(%)

YIN(%)

-20

-10

Phase Correction (Deg)

210

240

150

120

180

Chroma Input

Phase (Deg)

Narrow

Response

Wide Response

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