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Smartcoder AU6805 Series

PDF Catalog

AU6805_E_Manual.pdf  (2.0 MB)

1704ej.pdf  (4.4 MB)

Digital Tracking System (Real Time Absolute Angle Conversion)
Low cost/Small size High speed 12Bit Resolver to Digital Converter IC

Smartcoder is a R/D (Resolver to Digital) conversion IC, which converts resolver signals into digital absolute position angle signals.

It is usable in a wide range of applications, including vehicle/robot/machine tool related applications, in combination with brushless resolvers such as our Smartsyn and Singlsyn.

Features of AU6805 Series 

  • Adopts R/D conversion based on a proven digital tracking system
  • Low cost, small size and light weight
  • Satisfying fail check functions

(1) Abnormality detection
 Capable of detecting abnormal resolver signals, breaking of resolver signals, abnormal R/D
 conversion and abnormally high temperature of a IC
(2) Built in self test
 Conducts a self test on R/D conversion and abnormality detection

  • Realization of system/cost reduction based on all-in-one concepts

(1) Integrated with an excttation amplifier (Output current: 1 OmA rms/20mA rms)
(2) Integrated with an operation clock

  • Enhancement of functions corresponding to various applications

(1) Requires no phase adjustment to excitation signals (Allowable range: Within土45゜)
(2) Variable setting of controlling bandwidth (fBW) (Selectable from 7 types of fixed values or
 automatic adjustment)
(3) Capable of digital conversion of linear hall IC signals and R/D parallel connections to resolvers
(4) Output redundancy (Triple redundancy-Parallel/Pulse/Serial output)


Resolution 4,096(=212
Tracking rate 240,000min-1( When fBW is fixed.)
Convers1on accuracy ±4 LSB
Max. angular acceleration 3,000,000 rad/sec2(When fBW is automatic adjustment.)
Settling time 1.5ms(When input step is 180゜,and fBW is automatic adjustment.)
Output response ±0.2°/10,000min-1
Output form 12bit binary code Positive logic parallel+ A,B,Z + Serial 1/F
Power requirement +5V±10% (45mA: When the excitation amplifier is set at 10mA rms.)
Excitation power supply Integrated with a constant current control method excitation amplifier (10mArms / 20mArms)
Outline 48pin LQFP(7×7)、Pin to pin: 0.5mm
Operating temperature -40~+125℃


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