參數(shù)資料
型號(hào)： AD8114ASTZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 25/33頁(yè)
文件大?。?/td> 0K
描述： IC VIDEO CROSSPOINT SWIT 100LQFP
標(biāo)準(zhǔn)包裝： 1
功能： 視頻交叉點(diǎn)開(kāi)關(guān)
電路： 1 x 16:16
電壓電源： 雙電源
電壓 - 電源，單路/雙路(±)： ±4.5 V ~ 5.5 V
電流 - 電源： 70mA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 100-LQFP
供應(yīng)商設(shè)備封裝： 100-LQFP（14x14）
包裝： 托盤
AD8114/AD8115
Rev. B | Page 30 of 32
CONTROL THE EVALUATION BOARD FROM A PC
CLK
DATA IN
RESET
UPDATE
CE
DGND
MOLEX 0.100" CENTER
CRIMP TERMINAL HOUSING
1
6
D-SUB 25 PIN (MALE)
14 1
25
13
EVALUATION BOARD
PC
2
3
4
5
6
25
3
1
4
5
2
6
SIGNAL
DATA IN
CE
RESET
UPDATE
CLK
DGND
MOLEX
TERMINAL HOUSING
D-SUB-25
01070-058
The evaluation board includes Windows-based control
software and a custom cable that connects the board’s digital
interface to the printer port of the PC. The wiring of this cable
is shown in Figure 58. The software requires Windows 3.1 or
later to operate. To install the software, insert the disk labeled
Disk 1 of 2 into the PC and run the file called SETUP.EXE.
Additional installation instructions will be given on-screen.
Before beginning installation, it is important to terminate any
other Windows applications that are running.
When you launch the crosspoint control software, you will be
asked to select the printer port. Most modern PCs have only
one printer port, usually called LPT1. However some laptop
computers use the PRN port.
Figure 58. Evaluation Board-PC Connection Cable
Figure 59 shows the main screen of the control software in its
initial reset state (all outputs off). Using the mouse, any input
can be connected with one or more outputs by simply clicking
on the appropriate radio buttons in the 16 × 16 on-screen array.
Each time a button is clicked on, the software automatically
sends and latches the required 80-bit data stream to the
evaluation board. An output can be turned off by clicking the
appropriate button in the off column. To turn off all outputs,
click on RESET.
OVERSHOOT OF PC PRINTER PORTS’ DATA LINES
The data lines on some printer ports have excessive overshoot.
Overshoot on the pin that is used as the serial clock (Pin 6 on
the D-Sub-25 connector) can cause communication problems.
This overshoot can be eliminated by connecting a capacitor
from the CLK line on the evaluation board to ground. A pad
has been provided on the circuit side (C33) of the evaluation
board to allow this capacitor to be soldered into place.
Depending on the overshoot from the printer port, this
capacitor may need to be as large as 0.01 F.
While the computer software only supports serial programming
via a PC’s parallel port and the provided cable, the evaluation
board has a connector that can be used for parallel
programming. The SER/PAR signal should be at a logic high to
use parallel programming. There is no cable or software
provided with the evaluation board for parallel programming.
These are left to the user to provide.
AD8114/AD8115
Parallel Port Selection
01070-
059
The software offers volatile and nonvolatile storage of
configurations. For volatile storage, up to two configurations
can be stored and recalled using the Memory 1 and Memory 2
buffers. These function in a fashion identical to the memory on
a pocket calculator. For nonvolatile storage of a configuration,
the save setup and load setup functions can be used. This stores
the configuration as a data file on disk.
Figure 59. Screen Display and Control Software
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD8114ASTZ 制造商:Analog Devices 功能描述:IC SWITCH VIDEO
AD8114ASTZ2 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Cost 225 MHz 16 ?? 16 Crosspoint Switches
AD8114-EB 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Cost 225 MHz 16 X 16 Crosspoint Switches
AD8114-EVAL 制造商:Analog Devices 功能描述: 制造商:Analog Devices 功能描述:EVAL BD LOW COST 225 MHZ 16 16 CROSSPOINT SWITES - Bulk
AD8115 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Cost 225 MHz 16 X 16 Crosspoint Switches
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