參數(shù)資料
型號(hào): ADV7192KST
廠商: ANALOG DEVICES INC
元件分類(lèi): 顏色信號(hào)轉(zhuǎn)換
英文描述: Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs
中文描述: COLOR SIGNAL ENCODER, PQFP80
封裝: LQFP-80
文件頁(yè)數(shù): 52/69頁(yè)
文件大?。?/td> 664K
代理商: ADV7192KST
ADV7192
–52–
REV. 0
APPENDIX 7
DAC BUFFERING
External buffering is needed on the ADV7192 DAC outputs.
The con
fi
guration in Figure 106 is recommended.
When calculating absolute output full-scale current and voltage
use the following equations:
V
OUT
=
I
OUT
×
R
LOAD
I
OUT
= (
V
REF
×
K
)/
R
SET
K
= 4.2146
constant
,
V
REF
= 1.235
V
ADV7192
V
REF
PIXEL
PORT
V
AA
OUTPUT
BUFFER
DAC A
CVBS
CHROMA
G
LUMA
B
R
1.2k
R
SET1
DAC B
DAC C
DAC D
DAC E
DAC F
DIGITAL
CORE
1.2k
R
SET2
OUTPUT
BUFFER
OUTPUT
BUFFER
OUTPUT
BUFFER
OUTPUT
BUFFER
OUTPUT
BUFFER
Figure 106. Output DAC Buffering Configuration
OUTPUT TO
TV MONITOR
INPUT/
OPTIONAL
FILTER O/P
+V
CC
AD8051
–V
CC
1
5
4
3
2
Figure 107. Recommended DAC Output Buffer Using an
Op Amp
相關(guān)PDF資料
PDF描述
ADV7192 Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs
ADV7194KST Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling
ADV7194 Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling
ADV7202 Simultaneous Sampling Video Rate Codec
ADV7300A Multiformat SD, Progressive Scan/HDTV Video Encoder with Six NSV⑩ 12-Bit DACs
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