adv7390 Analog Devices, Inc., adv7390 Datasheet - Page 59
![no-image](/images/no-image-200.jpg)
adv7390
Manufacturer Part Number
adv7390
Description
Low Power, Chip Scale 10-bit Sd/hd Video Encoder
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADV7390.pdf
(96 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
adv7390BCPZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
adv7390BCPZ-REEL
Manufacturer:
LT
Quantity:
1 000
Company:
Part Number:
adv7390WBCPZ
Manufacturer:
AD
Quantity:
101
SD ACTIVE VIDEO EDGE CONTROL
Subaddress 0x82, Bit 7
The ADV739x is able to control fast rising and falling signals at
the start and end of active video to minimize ringing.
When the active video edge control feature is enabled
(Subaddress 0x82, Bit 7 = 1), the first three pixels and the last
three pixels of the active video on the luma channel are scaled
so that maximum transitions on these pixels are not possible.
VOLTS
VOLTS
100 IRE
–2
0
0 IRE
0.5
0.5
0
0
LUMA CHANNEL WITH
ACTIVE VIDEO EDGE
DISABLED
IRE:FLT
IRE:FLT
0
100
–50
100
–50
50
50
0
0
2
Figure 84. Example of Video Output with Subaddress 0x82, Bit 7 = 0
Figure 85. Example of Video Output with Subaddress 0x82, Bit 7 = 1
Figure 83. Example of Active Video Edge Functionality
2
4
Rev. 0 | Page 59 of 96
4
6
87.5 IRE
12.5 IRE
100 IRE
50 IRE
0 IRE
6
F2
L135
F2
L135
At the start of active video, the first three pixels are multiplied
by ⅛, ½, and ⅞, respectively. Approaching the end of active
video, the last three pixels are multiplied by ⅞, ½, and ⅛,
respectively. All other active video pixels pass through
unprocessed.
LUMA CHANNEL WITH
ACTIVE VIDEO EDGE
ENABLED
ADV7390/ADV7391/ADV7392/ADV7393
8
8
10
10
12
12