|
|
Part: MAX4358EVKIT
Category:
Analog & Mixed-Signal Processing
Description: MAX4358EVKIT Evaluation Kit For The MAX4358
Company: Maxim Integrated Products
Datasheet: Download MAX4358EVKIT datasheet File size : 717 kB
Request For quote: Find where to buy MAX4358EVKIT
Datasheet text preview:
19-2259; Rev 0; 12/01
MAX4358 Evaluation Kit
General Description
The MAX4358 evaluation kit (EV kit) is an assembled and t e s t e d circuit board that demonstrates a crosspoint switch with support for an optional on-screen display circuit. The MAX4358 is a 32 x 16 crosspoint switch with fast multiplexer inputs and partial update capability. The EV kit provides access to four of the inputs and four of the outputs. Windows 95/98® software provides a handy user-interface to exercise the MAX4358's features. o Proven PC Board Layout o Convenient On-Board Test Points o Fully Assembled and Tested o Optional On-Screen Display (Companion Board)
Features
Evaluates: MAX4358
Component List
REFERENCE C1C20, C23 C21, C22 J1 J2 J3 J4J11 JU1JU4 R1 R1 R2, R3, R4, R9R13, R51, R52, R53 R5R8 R14R25 R26R50 R54 TB1 U1 U2 U3 None None QTY 21 2 1 1 1 8 4 1 1 DESCRIPTION 0.1µF, 10V ceramic capacitors 10µF, 10V tantalum capacitors Female right-angle 2 25 header Female right-angle 2 13 header DB25 male right-angle connector BNC female jacks 2-pin headers 8-pin sip socket strip 75 ±2% 8-pin sip resistor pack, isolated circuit 100k ±5% resistors 75 ±1% resistors 10k ±5% resistors 27 ±5% resistors 1k ±5% resistor Five-circuit terminal block MAX4358ECE, 144-pin TQFP MAX353CSE/DG413CY, 16-pin SO 74HC14 hex Schmitt-trigger inverter MAX4358 PC board Parallel port I/O extension cable Digi-Key AE1012-ND Clip-on EMI suppression core w/ case, Fair-Rite 0444164281, or Mouser 623-0444164281 3.5in software disk MAX4358 data sheet MAX4358 EV kit data sheet MAX4358.EXE LPTCON.VXD INSTALL.EXE
Ordering Information
PART MAX4358EVKIT TEMP RANGE 0°C to +70°C IC PACKAGE 144 TQFP
MAX4358 EV Kit Files
Installs the EV kit files on your computer Application program Required parallel port driver
11 4 12 25 1 1 1 1 1 1 1
Quick Start
Recommended Equipment
Before you begin, you will need the following equipment: · MAX4358EVKIT · · · · A dual, DC power supply A computer running Windows 95/98 A spare parallel port A 25-pin, I/O extension cable
1) With the power off, connect the DC power supply to the MAX4358EVKIT at the terminal block. 2) Connect the 25-pin I/O extension cable from the computer's parallel port to the EV kit. The software uses a loopback connection to confirm that the correct port has been selected. 3) Ensure that the jumper settings are correct (see Table 1, Jumper Functions). 4) Connect input signals to IN00IN03 and connect outputs OUT00OUT03 to monitors. Ensure that the signals are terminated properly. Unused inputs may be left unconnected. 5) Install the MAX4358 EV kit software on your com-
None None None None
1 1 1 1
Windows 95/98 is a registered trademark of Microsoft Corp. ________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
MAX4358 Evaluation Kit Evaluates: MAX4358
puter by running the INSTALL.EXE program on the floppy disk. The program files are copied and icons are created for them in the Windows Start Menu. 6) Turn on the power supply. 7) Start the MAX4358 program by opening its icon in the Start Menu. 8) T o route the signal from input IN00 to output O U T 0 0 , go to the Output 00 combo box, and change the selection from "Disabled" to "Input 00". Optionally change the gain to "1V/V" or "2V/V". A message will appear at the bottom of the screen, "Pending Update". Click the "Send 15-bit Update" button to send the command to the hardware. You should now observe input signal IN00 appearing on output OUT00. The Reset menu can be used to reset all of the main window's drop-down combo boxes to Disabled, their initial state. Reset Software only changes the controls in the main window; it does not affect the hardware. Reset Hardware pulses the hardware reset signal, placing the MAX4358 in its initial state with all outputs disabled.
Supporting Larger Crosspoints
Up to sixteen MAX4358's can be daisy-chained together to form a larger crosspoint matrix. In this configuration, each MAX4358 should have a unique address selection, set by inputs A0A3. Although the evaluation software is only designed to control a single MAX4358, it can target any of the sixteen A0A3 addresses, by setting the corresponding A0A3 check boxes at the top of the main window.
Software Description
The main window controls a single MAX4358. Each of t h e matrix outputs has a corresponding drop-down combo box that selects its input source. Although the MAX4358EVKIT board only has BNC connections for IN00IN03 and OUT00OUT03, the evaluation software can be used to command all outputs. This way, the evaluation software can be used as a diagnostic during initial product development.
Detailed Description
U1, the MAX4358, is a 32 16 crosspoint switch with fast multiplexer inputs and partial update capability. The MAX4358 EV kit has BNC connectors for four of the inputs and four of the outputs. Additionally, eight outputs as well as OSDFILL0...OSDFILL7 and OSDKEY0...OSDKEY7 connect to the optional on-screen display kit. Sip resistor pack R1 provides optional 75 termination resistors on IN00IN03. Inputs IN04IN07 also have 75 terminations. Inputs IN08IN31 are tied together to test point TP1 and jumper JU5, for all-hostile crosstalk testing. Outputs OUT00OUT03 have 75 series resist o r s for back or reverse termination. Also, outputs OUT00OUT07 connect to the optional on-screen display kit through 27 resistors. The remaining outputs are left unconnected. See Figure 1, MAX4358 EV Kit Schematic and refer to the MAX4358 data sheet.
Initializing the Entire Matrix
The entire crosspoint can be initialized by means of a 112-bit synchronous serial command. First, use the dropdown combo boxes to select the desired input channel for each output. Optionally set 1V/V or 2V/V gain. Next, click on the "Send 112-bit Full Initialization" command button to transmit the command to the hardware.
15-Bit Update Command
First, use one of the drop-down combo boxes to select the desired input channel for the single output to be updated. Optionally set 1V/V or 2V/V gain. Next, click on the "Send 15-bit Update" command button to transmit the update command to the hardware.
Troubleshooting
Problem: Cannot find MAX4358 parallel port connection. Ensure that the I/O extension cable is connected to a parallel port, and not a SCSI or other type of port. Verify that the supplied LPTCON.VXD is in the same directory as MAX4358.EXE. If a local printer driver is installed, temporarily disable it. The software will not work if the program icon is dragged onto the Windows desktop; instead, install the software into a subdirectory, such as C:\MAX4358. The software can also be run directly on i t s floppy disk, as long as both MAX4358.EXE and LPTCON.VXD are in the same directory.
Options
To make the evaluation software transmit updated commands as soon as the corresponding combo box is changed, go to the Updates menu and check "Send updates when control is changed". To make the evaluation software display each update command before transmitting it, check "Show alert on updates." To observe the command waveforms on an analog oscilloscope, use the Repeat menu to make the evaluation software repeat its most recent initialization or update command at an observable rate.
2
_______________________________________________________________________________________
MAX4358 Evaluation Kit
Problem: Output signal amplitude is lower than expected. Typical video equipment, such as the VM700 and video monitors, have built-in terminations. Ensure that the signal path is not double-terminated.
Evaluates: MAX4358
Table 1. Jumper Functions
JUMPER JU1 JU2 JU3 JU4 POSITION Closed* Open Closed* Open Closed* Open Closed* Open Closed* Open FUNCTION Address selection A3 = 0 Address selection A3 = 1 Address selection A2 = 0 Address selection A2 = 1 Address selection A1 = 0 Address selection A1 = 1 Address selection A0 = 0 Address selection A0 = 1 IN08...IN31 connected to ground IN08...IN31 driven by TP1
JU5
*Default configuration.
_______________________________________________________________________________________
3
Others parts begin by ma
|
|
|
