STV2050A STMicroelectronics, STV2050A Datasheet - Page 43

• Manufacturer Part Number: STV2050A
• Description: IC DGTL CONVERGENCE PROC 80-PQFP
• Manufacturer: STMicroelectronics
• Type: Videor

Specifications of STV2050A

• Applications: HDTV
• Mounting Type: Surface Mount
• Package / Case: 80-MQFP, 80-PQFP
• Case: QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

grammed for VVB are greater than those of the VGD, unexpected effects will appear on the
screen.
Figure 25. Vertical Blanking
8.3 BLANKING FOR AUTO-ALIGNMENT PATTERN
The blanking for the auto-alignment pattern and for the other video pattern are linked to the
same timing which is defined by the HVB and VVB bits as described in the following sections.
8.4 FAST BLANKING
The FBLK pin is used to provide a fast switching signal that selects the source of the video
signal to be displayed on the screen. Features are controlled by the D7 register.
HAE
VAE
TVH
STA
V blank stop
V blank start
0: Horizontal blanking off
1: Horizontal blanking on
0: Vertical blanking off
1: Vertical blanking on
0: FBLK depends on the TVH, TVV and FAS bits (see below)
1: FBLK is forced to 1, if a pattern color is enabled by the COV bits.
(Refer to
Blanking of TV picture in horizontal direction
0: Blanking off
1: Blanking on
Section 7.1.1 "Pattern Selection" on page
V-Gridlines
STV2050A - BLANKING OF VIDEO SIGNALS
12
10
11
12
0
1
2
3
4
5
6
7
8
9
0
VVB
VVB
33)
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