iC-PT 3320
preliminar y
Rev A6, Page 1/9
6-CH. PHASED ARRAY OPTO ENCODER (33-2000)
FEATURES
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Monolithic photodiode array with excellent signal matching
Very compact size for small encoders
Moderate track pitch for relaxed assembly tolerances
Low noise signal amplifiers with high EMI tolerance
Single-pin programming of 3 operating modes:
analog, digital, and x2 interpolation
A-AND-B gated Z index signal
Complementary outputs: A, B, Z and NA, NB, NZ
U, V, W commutation signals (digital/analog)
All outputs +/- 4 mA push-pull, current-limited and
short-circuit-proof
LED power control with 40 mA high-side driver
Single 3.5 V to 5.5 V operation, low power consumption
Operating temperature range of -40 to +85 °C
(optional -40 to +120 °C)
Suitable code disc: PT4S 33-2000 (glass)
OD
∅33.2
mm, ID
∅13.0
mm, optical radius 14.5 mm,
2000 ppr and 3 ppr commutation (120°)
APPLICATIONS
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Incremental encoder
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BLDC motor commutation
PACKAGES
optoQFN32
5 mm x 5 mm x 0.9 mm
BLOCK DIAGRAM
+3.5..5.5V
C1
1μF
iC-PT
PA
NA
PB
NB
PZ
NZ
POWER-ON RESET
TIP
TIN
SEL
LED
POWER
CONTROL
VCC
LED
PA
NA
PB
NB
PZ
D1
R1
47
SIGNAL
COMPARATION
AND
QUADRATURE
OUTPUT
INDEX
OUTPUT
NZ
U
U
V
W
W
COMMUTATION
GND
-
+
V
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