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Table of Contents
Related Manuals for Mesa 7I46
Summary of Contents for Mesa 7I46
- Page 1 7I46 MANUAL 6 channel SPI breakout V1.0...
- Page 2 This page intentionally almost blank...
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Page 3: Table Of Contents
Table of Contents GENERAL ............1 DESCRIPTION . -
Page 4: General
The pinout matches Mesas SPI device pinouts and also supplies 5V power to the SPI device. A high side power switch allows AUX 5V power suppled to the the 7I46 to be routed to the SPI devices, the SPI power will be removed when the Anything I/Os cable power is off, avoiding possible back-powering of the FPGA card from external AUX 5V supply. -
Page 5: Hardware Configuration
CABLE/AUX 5V POWER UP = CABLE POWER CABLE POWER ENABLE The 7I46 can supply I/O power to P2 through P7 via TB1 or via the 50 conductor flat cable. If W1 is in the"UP" position, flat cable power is used. If W1 is on the "DOWN"... -
Page 6: Connectors
CONNECTORS CONNECTOR LOCATIONS AND DEFAULT JUMPER POSITIONS 7I47 3... -
Page 7: Controller Connector
50 pin header connector J1 connects to the anything I/O card/motion controller. This can be a male 50 pin header on the top of the 7I46 card or a female 50 conductor header on the bottom side of the 7I46 depending on 7I46 model. -
Page 8: Spi Connectors
SPI cable must use twisted pairs, with each SPI signal twisted with its adjacent ground signal. All SPI connectors (P2 through P7) have the same pinout: FUNCTION FROM 7I46 TO 7I46 FRAME(N) FROM 7I46... -
Page 9: Operation
The power from connector TB1 Passes through a 3.75A PTC device before being routed to the I/O terminals. This limits the total I/O power supplied by the 7I46 to ~3 A in 0 to 70C ambients. Note that the 5V power supplied to the SPI connectors via TB1 is switched by a high side switch that disconnect the SPI devices power when cable power is lost. -
Page 10: Specifications
SPECIFICATIONS UNITS 5V POWER SUPPLY 4.75 5.25 MAXIMUM POWER TO I/O CONNECTORS Per SPI connector OPERATING TEMP. OPERATING TEMP. (-I version) OPERATION HUMIDITY NON-COND 7I47 7...
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