NJU39610 데이터 시트보기 (PDF) - Japan Radio Corporation
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NJU39610 Datasheet PDF : 11 Pages
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NJU39610
MICROSTEPPING MOTOR CONTROLLER WITH DUAL DAC
s GENERAL DESCRIPTION
NJU39610 is a dual 7-bit+sign, Digital-to-Analog Converter
(DAC) especially developed to be used together with the
NJM3771, Precision Stepper Motor driver in micro-stepping
applications. The NJU39610 has a set of input registers
connected to an 8-bit data port for easy interfacing directly to
a microprocessor. The NJU39610 is well suited for high-
speed micro-stepping application.
s PACKAGE OUTLINE
NJU39610D2
NJU39610FM2
s FEATURES
• Analog control voltages from 3 V down to 0.0 V
• High-speed microprocessor interface
• Automatic fast/slow current decay control
• Full-scale error
• Fast conversion speed
±1 LSB
3 µs
• Matches NJM3771
• Packages
DIP22/PLCC28
s BLOCK DIAGRAM
WR
CS
A0
A1
D7 - D0
RESET
Figure 1. Block Diagram
VDD
VRef
POR
DA- Data 1
E
C
D
E1
R
Level 1
E
E2
C
D
R
Level 2
E3
E
C
D
E4
R
DA- Data 2
E
C
D
R
R
Digit
Comp
E1 E
C
D
R
E4 E
Digit
Comp C
D
R
Vss
NJU39610
Sign 1
D/A
CD1
DA 1
D/A
DA 2
CD2
Sign 2
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