IC-LNB_13 Datasheet, PDF (1/35 Pages) IC-Haus GmbH – 18-BIT OPTO ENCODER WITH SPI AND SER/PAR INTERFACES

iC-LNB 18-BIT OPTO ENCODER ^preliminary
WITH SPI AND SER/PAR INTERFACES
FEATURES
o System-on-chip design for excellent reliability
o Leading/trailing sampling of 10 binary tracks pitched at 400 µm
o Analog sine/cosine scanning with enlarged photodiodes,
signal conditioning and fast 8-bit vector-tracking interpolation
o Absolute singleturn resolution of up to 18 bit
o Unique FlexCount^® circuit: freely selectable resolution for
absolute and incremental data
o Incremental quadrature outputs with 1 to 65,536 CPR and
programmable index signal
o LED illumination control by 50 mA high-side current source
(sin²+cos² or sum control modes)
o Alarm indication for configuration or illumination error
o Permanent RAM monitoring by parity bits
o 3.3 V-compatible SPI and I/O ports for configuration and data
o Serial data readout in 1 µs cycles at 16 MHz clock frequency
o Parallel position data output for 16 bit
o Operation at 4 V to 5.5 V within -40 °C to 110 °C
o 30-pin optoBGA or 38-pin optoQFN package for SMT
o Illumination: iC-SN85 BLCC SN1C (850 nm encoder LED)
o Code discs: LNB1S 42-1024 (1024 PPR, ∅ 42 mm/18 mm),
LNB4S 26-1024 (1024 PPR, ∅ 26.0 mm/9.6 mm)
Rev A1, Page 1/35
APPLICATIONS
o Optical position sensors
o Linear scales
o Absolute rotary encoders
o Programmable incremental
encoders
o Motor feedback systems
PACKAGES
30-pin optoBGA
7.6 mm x 7.1 mm x 1.6 mm
38-pin optoQFN
7.0 mm x 5.0 mm x 0.9 mm
BLOCK DIAGRAM
+3 V ... 5.5 V
C1
VDD
GND
SCK
MOSI
SPI
MISO
CS
DIR
NSL
DIN
SER
DOUT
CLK
INCA
INCB INC
INCZ
GA
PAR
GB
XJD P0...15
iC-LNB
LED Control
sin²+cos², sum
VDDA
GNDA
LED
ERR
+4 V ... 5.5 V
C2
Error
D1
Calibration
R1
Cosine
Sine
PSIN
NSIN
P
PCOS
N
NCOS
LED
iC-SN85
R2
Interpolation
6/7/8 bit
TPC
TNC
sin
dig
TPS
TNS
Power-On ^POK
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http://www.ichaus.com