HI-8570

HI-8570, HI-8571 August 2006 +/- 5V Supply, ARINC 429 LINE DRIVER PIN CONFIGURATION SLP1.5 1 TX0IN 2 TX1IN 3 GND 4 DESCRIPTION The HI-8570 and HI-8571 are CMOS integrated circuits designed to directly drive the ARINC 429 bus in an 8-pin package. Two logic inputs control a differential voltage between the output pins producing a +10 volt One, a -10 volt Zero, and a 0 volt Null. A logic input is provided to control the slope of the differential output signal. Timing is set by an on-chip resistor and capacitor and tested to be within ARINC requirements. The HI-8570 has 37.5 ohms in series with each line driver output. The HI-8571 provides the option to bypass part of the output resistance so external resistance may be added for lightning protection circuits. The HI-8570 or the HI-8571 along with the HI-8588 line receiver offer the smallest options available to get on and off theARINC 429 bus. www.DataSheet4U.com 8 V+ 7 TXBOUT 6 TXAOUT 5 V- SUPPLY VOLTAGES V+ = +5V V- = -5V FUNCTION TABLE TX1IN TX0IN SLP1.5 TXAOUT 0V -5V -5V 5V 5V 0V TXBOUT 0V 5V 5V -5V -5V 0V SLOPE N/A 10ms 1.5ms 10ms 1.5ms N/A 0 0 0 0 1 1 0 0 1 X 0 1 0 1 X FEATURES ! ! ! ! ! ! ! Direct ARINC 429 line driver interface in a small package On-chip line driver slope control and selection by logic input Low current 5 volt supplies CMOS / TTL logic pins 1 1 1 PIN DESCRIPTION TABLE PIN SYMBOL SLP 1.5 TX0IN TX1IN GND VTXAOUT TXBOUT V+ FUNCTION LOGIC INPUT LOGIC INPUT LOGIC INPUT POWER POWER OUTPUT OUTPUT POWER...