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參數(shù)資料
| 型號： | LT1675CGN |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 2/16頁 |
| 文件大小： | 0K |
| 描述： | IC MUX RGB HISPEED TRIPLE 16SSOP |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 類型： | 多路復(fù)用器 |
| 應(yīng)用： | 驅(qū)動器，處理，切換 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SSOP |
| 包裝： | 管件 |
10
LT1675/LT1675-1
16751fb
APPLICATIONS INFORMATION
WU
U
Switching Transients
This MUX includes fast current steering break-before-
make SPDT switches that minimize switching glitches.
The switching transients of Figure 3 are input-referred
(measured between 75
back termination and the 75
load). The glitch is only 50mVP-P and the duration is just
5ns. This transient is small and fast enough to not be
visible on quality graphics terminals. Additionally, the
break-before-make SPDT switch is open before the alter-
nate channel is connected. This means there is no input
feedthrough during switching. Figure 4 shows the amount
of alternate channel that is coupled at the input.
Expanding Inputs
In video routing applications where the ultimate speed is
not mandatory, as it is in pixel switching, it is possible to
expand the number of MUX inputs by shorting the
LT1675 outputs together and switching with the
ENABLE pins. The internal gain set resistors have a nomi-
nal value of 750
and cause a 1500 shunt across the
75
cable termination. Figure 5 shows schematically the
effect of expanding the number of inputs. The effect of this
loading is to cause a gain error that can be calculated by
the following formula:
Gain
n
dB
Error (dB) = 6dB + 20log
–1
75 +
1575
–1
75
1575
75
where n is total number of LT1675s. For example, using
ten LT1675s (20 Red, 20 Green and 20 Blue) the Gain Error
is only – 1.7dB per channel.
Figure 6 shows a 4-input RGB router. The response from
RED 1 Input to Red Output is shown in Figure 7 for a
25MHz square wave with Chip Select = 0V. In this case the
Gain Error is – 0.23dB. Toggling with Chip Select between
IC #1 and IC #2 is shown in Figure 8. In this case RED 1
Input is connected to 0V and RED 3 Input is connected to
an uncorrelated sinewave.
0V
3V
1V/DIV
0V
SELECT
PIN 10
50mV/DIV
RED OUT
PIN 15
RL = 150, 10pF SCOPE PROBE
1675 F03
Figure 3. Input-Referred Switching Transient
RS = 75
1675 F04
3V
0V
1V/DIV
20mV/DIV
RED 1 IN
PIN 1
SELECT
PIN 10
Figure 4. Switching Transient at RED 1 (Pin 1)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1675CGN#PBF | 功能描述:IC MUX RGB HISPEED TRIPLE 16SSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:電平移位器 應(yīng)用:LCD 電視機/監(jiān)控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND |
| LT1675CGN#TR | 功能描述:IC MUX RGB TRIPLE 250MHZ 16SSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| LT1675CGN#TRPBF | 功能描述:IC MUX RGB HISPEED TRIPLE 16SSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| LT1675CGNPBF | 制造商:Linear Technology 功能描述:RGB Multiplexer/Amp Triple 250MHz SSOP16 |
| LT1675CMS8-1 | 功能描述:IC MUX RGB SGL HS W/CFA 8-MSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
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