iC-LV
5-BIT OPTO ENCODER
Rev A3, Page 1/12
FEATURES
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High synchronism and technical reliability due to monolithic
construction featuring on-chip photosensors
Scanning with constant-light evaluation at a pitch of 600 m
Photocurrent amplifiers with high cut-off frequency
Adjustable illumination control with 40 mA LED driver
ensures constant receiver power over life
Monitoring of safe operating range with alarm message
(eg. EOL message on LED control error)
Serial data output via extended SSI interface
Parallel 5 bit data output as Gray or binary code
Adjustable phase of MSB track selects for sense of Gray
code direction
Selectable all-track bit inversion
Supports chain circuits of multiple devices including
synchronisation options
Integrated test aids
Single 4 to 5.5 V supply, low power consumption
Extended operating temperature range of -40 to 125 °C
APPLICATIONS
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Scanning with constant-light
evaluation for optical encoders
Low-res singleturn encoders
Multiturn encoders
CHIP
Chip
1.68 mm x 3.5 mm
16-pin BLCC
7.0 mm x 7.0 mm
BLOCK DIAGRAM
+5V
VDD
+5V
IDH
VCCA
G=200
VCCA
IDD
Monitor
ERRS
G=200
DREF
Monoflop
NQ
C1
100 nF
GND
SCLK
LVCC
DD
RC
NE
LED
R3
47
INREF
:2
RC
AMP
LED CURRENT CONTROL
D4
G=200
COMP
4
TEST
MODE
NDIR
NINV
SEEN
SOUT
R2
18 k
C2
1 nF
3
VCCA
D3
G=200
D4 (MSB)
VBG
2
D2
NERR
ERRS
G=200
ERROR I/O
1
D1
LED ADJUST
D0
G=200
DIN(4:0)
SERIN
0
G=200
MODE3
TDH
TDI
D3
D2
D1
D0 (LSB)
SCLK
SYNM0
SYNM1
iC-LV
AGND
RSET
R1
24 k
TRACK SCANNER
SSI INTERFACE
Copyright © 2007, iC-Haus
www.ichaus.com
ICHAUS [ IC-HAUS GMBH ]
