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參數(shù)資料
| 型號： | NCS2561SQT1G |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 11/11頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OP AMP HS W/FILTER SC-88 |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 應(yīng)用： | 濾波器 |
| 電路數(shù)： | 1 |
| 電流 - 電源： | 6mA |
| 電流 - 輸出 / 通道： | 50mA |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 3.3 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 6-TSSOP，SC-88，SOT-363 |
| 供應(yīng)商設(shè)備封裝： | SC-88 |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | NCS2561SQT1G-ND NCS2561SQT1GOSTR |
NCS2561
http://onsemi.com
9
DCCoupled Output
Having efficient output ACcoupled capability thanks to
the sag correction option, with the builtin level shifter, the
NCS2561 can also be DCcoupled to a 150
W load. This has
the advantage of eliminating the ACcoupling capacitors at
the output by reducing the number of external components
and saving space on the board. This can be a key advantage
for some portable applications with limited space.
The problems of field tilt effects on the video signal are
also eliminated providing the best video quality with
optimal dynamic or peaktopeak amplitude of the video
signal allowing operating at the lower power supply voltage
(2.7 V) without risk of signal clipping. In this coupling
configuration the average output voltage is higher than 0 V
and the power consumption can be a little higher than with
an ACcoupled configuration.
Figure 16. DCCoupled Input and Output Configuration
1 V
0 V
1Vpp
Level
Shifter
+
GND
Enable
NCS2561
Vcc
IN
2pole
filter
2.7V to 3.3V
OUT
SAG
Video
DAC
75 W
TV
Rs
Enable
Vcc
Video Driving Capability
With an output current capability of
±50 mA the NSC2561
was designed to be able to drive at least 2 video display loads
in parallel (2 different display or 1 display + 1 VCR). This
(multiburst) and Figure 19 (linearity) show that the video
signal can efficiently drive a 75
W equivalent load and not
degrade the video performance.
Figure 17. NCS2561 Driving 2 Video Display (two 150 W loads)
1 V
0 V
1Vpp
Level
Shifter
+
GND
Enable
NCS2561
Vcc
IN
2pole
filter
2.7V to 3.3V
OUT
SAG
Video
DAC
47 mF /
67 mF
22 mF
75 W
TV
Rs
Enable
Vcc
75 W
Other Video
Display
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