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參數(shù)資料
| 型號： | BT261KPJ |
| 元件分類： | TVS-瞬態(tài)抑制二極管 |
| 英文描述： | Transient Voltage Suppressor Diodes |
| 中文描述： | 視頻信號發(fā)生器 |
| 文件頁數(shù)： | 36/56頁 |
| 文件大?。?/td> | 387K |
| 代理商： | BT261KPJ |
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Brooktree
30
L261_H
Bt261
30 MHz Pixel Clock Monolithic CMOS HSYNC Line Lock Controller
I
NTERNAL
R
EGISTERS
CLAMP Start and Stop Registers
ZERO Start and Stop Registers
These two 16-bit registers specify the number of pixel clock cycles after the falling edge of noise-gated CSYNC* at
which to assert or negate the ZERO output. The [start value] sets this output high at the specified number of CLOCK
cycles following the falling edge of noise-gated CSYNC*. The [stop value] sets this output low at the specified num-
ber of CLOCK cycles following the falling edge of noise-gated CSYNC*. If [start value] = [stop value], ZERO will
remain a constant logical one. Values from $0000 (1) to $0FFF (4096) may be specified. There is a 3-pixel-clock
pipeline delay in clearing the horizontal counter when the part is used in phase-lock loop mode. When the pixel clock
is generated by dividing down an external oscillator, this delay is in oscillator clocks. Thus, output of this signal with
respect to CSYNC* may be delayed.
D4–D7 of ZERO start high are ignored during MPU write cycles and return a logical zero during MPU read cycles.
The 16-bit ZERO start register is not updated until the write cycle to the ZERO start high register. Thus, the writing
sequence should be [zero start low] [zero start high].
D4–D7 of ZERO stop high are ignored during MPU write cycles and return a logical zero during MPU read cycles.
The 16-bit ZERO stop register is not updated until the write cycle to the ZERO stop high register. Thus, the writing
sequence should be [zero stop low] [zero stop high].
Since an active high signal is need for the Bt218, Bt252, and Bt254 during non-acquisition intervals, the ZERO
output can be programmed to be within the horizontal retrace interval. In addition, these devices produce a significant
impulse on their video input following the zero pulse, which can affect clamping stability. So, the pulse is best posi-
tioned within the active CLAMP pulse to divert this energy. Both CLAMP and ZERO pins may be driven with the
same timing.
ZERO Start/Stop High
ZERO Start/Stop Low
Data Bit
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
Cascaded Value
H11
H19
H9
H8
H7
H6
H5
H4
H3
H2
H1
H0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BT26P | 制造商:Banner Engineering 功能描述:FIBER BT26P |
| BT26S | 制造商:Banner Engineering 功能描述:Sensor, Fiber Optic, Assembly, Bifurcated 制造商:Banner Engineering 功能描述:FIBER OPTIC SENSOR 制造商:Banner Engineering 功能描述:FIBER OPTIC SENSOR; Fiber Optic Sensor Type:Bifurcated Fibre; Type:Bifurcated Fibre ;RoHS Compliant: Yes |
| BT26SM900 | 制造商:Banner Engineering 功能描述:Sensor, Glass Fiber 制造商:Banner Engineering 功能描述:FIBER BT26SM900 ;ROHS COMPLIANT: YES |
| BT26SMSS | 制造商:Banner Engineering 功能描述:Sensor, Glass Fiber |
| BT-27 | 功能描述:TERM BLOCK HIGH CURRENT 27CIRC RoHS:是 類別:連接器，互連式 >> 接線座 - 隔板塊 系列:BT 標準包裝:10 系列:Beau™ 38780 端接塊類型:阻隔塊 電路數(shù):15 導(dǎo)線入口數(shù)目:30 間距:0.438"（11.12mm） 行數(shù):2 電流:15A 電壓:300V 線規(guī):14-22 AWG 頂部端子:螺釘 底部端子:焊片 阻擋層類型:雙壁（雙） 特點:法蘭 顏色:黑 包裝:散裝 安裝類型:通孔 工作溫度:- 材料 - 絕緣體:聚對苯二甲酸丁二酯（PBT），玻璃纖維增強型 材料可燃性額定值:UL94 V-0 其它名稱:038780-111538780-1115387801115 |
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