IC-LNB_16 Datasheet, PDF (1/37 Pages) IC-Haus GmbH – 18-BIT OPTO ENCODER

iC-LNB 18-BIT OPTO ENCODER ^preliminary
WITH SPI AND SER/PAR INTERFACES
Rev B2, Page 1/37
FEATURES
• System-on-chip design for excellent reliability
• Leading/trailing sampling of 10 binary tracks pitched at 400 µm
• Analog sine/cosine scanning with enlarged photodiodes, signal
conditioning and fast 8-bit vector-tracking interpolation
• Absolute singleturn resolution of up to 18 bit
• Unique FlexCount^® circuit: freely selectable resolution for
absolute and incremental data
• Incremental quadrature outputs with 1 to 65,536 CPR and
programmable index signal
• LED illumination control by 50 mA high-side current source
(sin²+cos² or sum control modes)
• Alarm indication for configuration or illumination error
• Permanent RAM monitoring by parity bits
• 3.3 V-compatible SPI and I/O ports for configuration and data
• Serial data readout in 1 µs cycles at 16 MHz clock frequency
• Parallel position data output for 16 bit
• Operation at 4 V to 5.5 V within -40 °C to 110 °C
• 30-pin optoBGA or 38-pin optoQFN package for SMT
• Illumination: iC-SN85 BLCC SN1C (850 nm encoder LED)
• Code discs: LNB1S 42-1024 (1024 PPR, ∅ 42 mm/18 mm),
LNB4S 26-1024 (1024 PPR, ∅ 26.0 mm/9.6 mm)
APPLICATIONS
• Optical position sensors
• Linear scales
• Absolute rotary encoders
• Programmable incremental
encoders
• 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
Copyright © 2013, 2016 iC-Haus
http://www.ichaus.com