IC-HF Datasheet, PDF (2/36 Pages) IC-Haus GmbH – 6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER

iC-HF
preliminary
6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER
Rev C1, Page 2/36
DESCRIPTION
iC-HF is a robust line driver for industrial 5 V control
applications featuring six differential output channels.
Single-ended, TTL-compatible input signals are trans-
mitted as differential, 5 V RS-422 output signals at a
rate up to 10 MHz. The push-pull driver stages typi-
cally provide 40 mA, present low saturation voltage,
are current limited for reduced EMI emissions, and
short-circuit-proof.
iC-HF is protected against reverse polarity connection,
disabling internal supply voltage and setting output
channels to high impedance when reverse polarity
connection is detected. It offers a power-good switch,
delivering up to 60 mA, that allows extended reverse
polarity protection for connected sensors.
log signals from sensors can be accessed directly at
output pins from iC-HF, allowing sensor calibration
and alignment. Up to 9 channels can be configured
as Encoder Link. Entering and exiting Encoder Link
configuration requires no additional line.
BiSS/SSI communication is supported through
RS-422 standard physical layer. iC-HF can also be
included in a BiSS bus structure, and it can be config-
ured as a bus termination node (BiSS bus loopback).
iC-HF protects against undervoltage and overtem-
perature events. Output channels are left in high
impedance upon any of these events, and an error is
signaled through the open drain output NERR. NERR
is short-circuit protected.
iC-HF supports Encoder Link. In this configuration Error signaling from sensor can be transferred via
input signals are directly linked to output pins. Ana- NERRI/NERR pins.