iC-MD
RS-422 QUADRATURE
preliminar y
Rev A1, Page 1/23
ENCODER RECEIVER/COUNTER WITH SPI AND BiSS
FEATURES
o
Configurable quadrature 3-channel binary counter of
16, 24, 32 and 48 bit (TTL, RS422 or LVDS input)
o
Fast RS422 12 V receiver for differential A/B/Z encoder signal
o
Count frequency to 40 MHz
o
Monitoring of A/B phase logic with error message
o
Evaluation of distance-coded reference marks
o
Pin-triggered touch-probe function with
selectable hi/lo edge sensitivity
o
Error and warning signal generation
o
Operation from 3.3 V to 5 V
o
Configuration via bus capable SPI and
BiSS
Interface
o
Two actuator output signals
o
Default operation mode permits plug & play
without programming
o
3 Channel 16 bit counting (TTL: A/B)
o
2 Channel 16, 24 or 16+32 bit counting
(TTL: AP/AN/BP, BN/CP/CN)
o
1 Channel 16, 24, 32 or 48 bit counting
(TTL: AP/AN/BP or RS422, LVDS: A/B/C differential)
APPLICATIONS
o
PLC interface to linear scales,
rotary encoders, digital gauges
o
Motion control
PACKAGES
TSSOP 20
BLOCK DIAGRAM
VDD
RS-422/TTL RECEIVERS
AP
MULTIPLEXER
REFERENCE-TO-REFERENCE
COUNTER 24 Bit
UPD Register
DATA I/O
AND
STATUS
ERROR
REGISTERS
NWARN
WARNING
NERR
+
-
AN
BP
REFCNT
REF Register
+
A0
B0
Z0
A1
CNT 0
24 Bit
24 Bit
48 Bit
32 Bit
32 Bit
A2
B2
16 Bit
16 Bit
16 Bit
CNT 1
-
24 Bit
-
-
16 Bit
-
16 Bit
16 Bit
CONFIGURABLE
COUNTERS
CNT 2
-
-
-
-
-
-
-
16 Bit
SPI INTERFACE
NCS
SCK
MISO
MOSI
ACTUATOR OUTPUT
ACT1
ACT0
-
BN
CP
B1
+
Z1
-
CN
TOUCH PROBE
SERIAL INTERFACE
BiSS C
SSI
MA
SLI
SLO
TPI
iC-MD
TP1
ENTP
&
TP2
GND
Copyright © 2006, 2010 iC-Haus
ICHAUS [ IC-HAUS GMBH ]
