IC-HF Datasheet, PDF (1/36 Pages) IC-Haus GmbH – 6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER

iC-HF
preliminary
6-CH. ENCODER LINK, RS-422 DRIVER/RECEIVER
FEATURES
• Versatile 3+3 channel RS-422 line driver/receiver
• Pin configured as 6-ch. driver, or 3+3/4+2 ch. driver/receiver
• Pin configured as driver (6x) or driver/receiver (3x/3x or 4x/2x)
• Supports BiSS bus structure and BiSS bus loopback
• Unique Encoder Link mode: analog switches to bridge 9 lines
• Differential short-circuit-proof push-pull outputs
• Source/sink driving capability of 30 mA typ. at 3 V
• Reduced EMI due to output current limitation
• Output shutdown with undervoltage and overtemperature
• Suits various line impedances, allows 120 Ω termination
• TTL-compatible hysteresis inputs
• Up to 10 MHz input/output frequency
• Open-drain error message output (NERR)
• Reverse polarity protection
• Reverse pol. protection of periphery by supply switch (60 mA)
• Operation from 3.0 V to 5.5 V
• Operating temperature range of -40 °C to +125 °C
• Space-saving 32-pin QFN package
Rev C1, Page 1/36
APPLICATIONS
• Differential cable driver
• Motion control encoders
• Control engineering
• Microcontroller peripheries
• BiSS Interface bus structures
PACKAGES
QFN32 5 mm x 5 mm
BLOCK DIAGRAM
1 μF
VDDS
GNDS
VDD
3..5.5V
REVERSE POLARITY PROTECTION ^GND
1 μF
X1
NX1
X2
NX2
X3
NX3
X4
X5
X6
PTC
ECM
OEN
FMSEL1
FMSEL2
NERRI
BYP
BYP
EBIS
BYP EBIS TRI
CONTROL
LOGIC
OVT
PoDo
1
RS422
Q1
TRI
NQ1
Q2
RS422 _NQ2
Q3
RS422 _NQ3
RS422 I/O
Q4
TRI
NQ4
+
_
Q5
RS422 I/O _NQ5
Q6
RS422 I/O _NQ6
BYPR
ENCODER LINK
REQUEST
DETECTION
OVT
PoDo
OVERTEMP
POWER DOWN
Q1
NQ1
NERR
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