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參數(shù)資料
| 型號： | BA7658 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | Input selector switch for high definition displays |
| 中文描述： | 輸入用于高清晰度顯示器選擇開關(guān) |
| 文件頁數(shù)： | 11/13頁 |
| 文件大?。?/td> | 163K |
| 代理商： | BA7658 |
11
Multimedia ICs
BA7658AFS
Circuit operation
(1) Analog switches
Switch between the two sets of R, G and B color sig-
nals. IN1 is selected by impressing the high level volt-
age on the CTL pin, IN2 by impressing the low level
voltage.
(2) Digital switches
These switch between the two sets of HD and VD syn-
chronization signals. HD and VD synchronization sig-
nals for IN1 are output by impressing the high level
voltage on the CTL pin, HD and VD synchronization
signals for IN2 by impressing the low level voltage.
(3) Synchronization separation block
Outputs the synchronization signals by separating
them from composite signals (Sync on Green). When
HD signals are being input, the synchronization signal
detector stops the synchronization separator. The low
level voltage is output. The time that the synchroniza-
tion separator is stopped can be set by changing the
time constant attached to the synchronization signal
detection pin.
(4) Signal detection block
When the signal input exceeds the level set inside the
IC (typically 400mV
P-P
, V
CC
= 5.0V), the high level volt-
age is output to the color signal detection output pin.
The low level voltage is output when the signal input is
lower than the set level. The quiescent circuit reaction
time can be set by changing the time constant attached
to pin used to set the time constant for color signal
detection. The signal detector stops while the high level
is being input to the blanking pulse input pin, thereby
preventing malfunctioning due setup signal block dur-
ing the synchronization signal period.
The relationship between inputs and outputs
Input
VD
Sync on Green
HD
—
s
—
s
s
—
s
—
—
s
s
—
s
s
s
s
s
s
—
—
—
Output
VD
Composite Sync
HD
—
s
—
s
s
—
s
—
—
s
s
—
s
s
s
—
s
—
—
—
—
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA7658AFS | 制造商:ROHM 制造商全稱:Rohm 功能描述:Input selector switch for high definition displays |
| BA7658AFS-E2 | 功能描述:IC SW INPUT SELECTOR SSOPA32 TR 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 標準包裝: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 |
| BA7660F/FS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:マルチメディアLSI |
| BA7660F-E2 | 制造商:ROHM Semiconductor 功能描述:3-OUTPUT VIDEO DRIVER WITH AMP - Tape and Reel |
| BA7660FS | 制造商:Panasonic Industrial Company 功能描述:IC |
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