GS1511 Gennum Corporation, GS1511 Datasheet - Page 8

• Manufacturer Part Number: GS1511
• Description: Hd-linx (tm) HDTV Serial Digital Formatter
• Manufacturer: Gennum Corporation

3. DETAILED DESCRIPTION
3. DETAILED DESCRIPTION
3. DETAILED DESCRIPTION
3. DETAILED DESCRIPTION
3.1 DATA INPUT AND OUTPUTS
Data enters and exits the device synchronous to the rising
edge of PCLK_IN as shown in Figure 1.
GENNUM CORPORATION
DATA_IN[19:10]
DATA_IN[19:0]
DATA_IN[9:0]
(CHROMA)
PCLK_IN
PCLK_IN
(LUMA)
RSTLN
H
V
F
DATA_IN[19:0]
PCLK_IN
DATA_OUT
BLANK
PCLK_IN
DATA_IN
3FF
3FF
n Frames
000
000
WORD
X
DATA
000
000
Fig. 3 Timing of Dynamic Data Blanking
WORD
(EAV ID)
(EAV ID)
X+1
XYZ
XYZ
Fig. 1 Synchronous I/O Timing
Fig. 4 HVF Input Timing
t
SU
Fig. 2 RSTLN Timing
DATA
YLN
CLN
WORD
X+2
0
0
t
IH
3FF
8
WORD
Data To Be Blanked
X+3
3.2 INPUT BLANKER
Data words entering the GS1511 can be dynamically set to
Luma and Chroma blanking levels if desired as shown in
Figure 3. Blanking is applied to both the LUMA and
CHROMA channels simultaneously.
DATA
000
EAV For Line#1
WORD
Transistion From Low To High Can Happen at Any Point
X+4
000
DATA
DATA
WORD
X+6
t
OH
(EAV ID)
t
OD
XYZ
3FF
3FF
WORD
X+7
DATA
DATA
000
000
LN
Line#1 Inserted
0
WORD
Here
X+8
000
000
LN
1
(SAV ID)
(SAV ID)
XYZ
XYZ
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