NJU39612E2 Nisshinbo

Designated client product This product will be discontinued its production in the near term. And it is provided for customers currently in use only, with a time limit. It can not be available for your new project. Please select other new or existing products. For more information, please contact our sales office in your region. New Japan Radio Co.,Ltd. www.njr.com NJU39612 MICROSTEPPING MOTOR CONTROLLER WITH DUAL DAC n GENERAL DESCRIPTION n PACKAGE OUTLINE NJU39612 is a dual 7-bit+sign Digital-to-Analog Converter (DAC) developed to be used in micro stepping applications together with the dual stepper motor driver. The NJU39612 has a set of input registers connected to an 8-bit data port for easy interfacing directly to a microprocessor. Two registers are used to store the data for each seven-bit DAC, the eighth bit being a sign bit (sign/magnitude coding). NJU39612E2(SOP20) n FEATURES Analog control voltages from 3V down to 0.0V High-speed microprocessor interface Full -scale error 1 LSB Fast conversion speed 3 m s Matches the dual stepper motor drivers Package SOP20 JEDEC 300 mil n BLOCK DIAGRAM V V DD Ref NJU39612 WR Sign 1 DA- Data 1 E1 E CS C D DA 1 D / A R E2 A0 DA DA- Data 2 2 D / A E C D7 - D0 D R Sign POR 2 R RESET V ss Figure 1. Block Diagram