參數(shù)資料
型號(hào)： THS7316DG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： 3 CHANNEL, VIDEO AMPLIFIER, PDSO8
封裝： GREEN, PLASTIC, MS-012AA, SOIC-8
文件頁(yè)數(shù)： 10/28頁(yè)
文件大小： 988K
代理商： THS7316DG4
www.ti.com
P’R
Out 2
75 W
+
75 W
P’R
Out 1
75 W
+
75 W
P’B
Out 2
75 W
+
75 W
P’B
Out 1
75 W
+
75 W
Y’
Out 2
75 W
+
75 W
Y’
Out 1
75 W
330 f
m
(Note A)
+
75 W
5
8
7
6
1
2
3
4
Y’
3.3V
P’B
P’R
THS7316
+
R
3.3 V
R
3.3 V
3.01MW
0.1 F
m
0.1 F
m
0.1 F
m
0.1 F
m
22 F
m
VS+
GND
CH.2IN
CH.3IN
CH.1IN
CH.3OUT
CH.2OUT
CH.1OUT
DAC/
Encoder
3.3V
HDTV
720p/1080i
Y’P’ P’
G’B’R’
B
R
330 f
m
(Note A)
330 f
m
(Note A)
330 f
m
(Note A)
330 f
m
(Note A)
330 f
m
(Note A)
SLOS521A – MARCH 2007 – REVISED JANUARY 2008
Due to the edge rates and frequencies of operation, it is recommended – but not required – to place a 0.1-
F to
0.01-
F capacitor in parallel with the large 220-F to 1000-F capacitor. These large value capacitors are most
commonly aluminum electrolytic. These capacitors have significantly large ESR (equivalent series resistance),
and their impedance at high frequencies is large due to the associated inductances involved with the leads and
construction. The small 0.1-
F to 0.01-F capacitors help pass these high frequency (>1 MHz) signals with much
lower impedance than the large capacitors.
Although it is common to use the same capacitor values for all the video lines, the frequency bandwidth of the
chroma signal in a S-Video system are not required to go as low – or as high of a frequency – as the luma
channels. Thus the capacitor values of the chroma line(s) can be smaller – such as 0.1-
F.
A.
Due to the high frequency content of the video signal, it is recommended, but not required, to add a 0.1-
F or 0.01-F
capacitor in parallel with these large capacitors.
B.
Current sinking DAC / Encoder shown. See the application notes.
Figure 32. Typical 480i/576i Y'P'BP'R AC-Input System Driving 2 AC-Coupled Video Lines
18
Copyright 2007–2008, Texas Instruments Incorporated
Product Folder Link(s) :THS7316
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