Home > Products - Resolvers/Synchros > Resolver / Digital converters (Smartcoder)

Resolver / Digital converters (Smartcoder)

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.

Smartcoder AU6805シリーズ

The photo is an image.

User's Manual


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)

Features of AU6802N1

・Wide operating temperature range : -40∼+125°C
・Real time output (High tracking rate: 240,000min-1 for 10 bit resolution)
・Single power supply of DC5V (Integrated oscillator for exciting resolver: 10/20kHz)
・Small size and light weight (10×10mm,Pin interval : 0.65mm, 52pins TQFP, Mass.0.3gram)
・Built-in test (Abnormality detection) function
・Pulse / Parallel / Bus serial (Selectable)
・Resolution of 10/12 bit (Selectable)
・Single power supply of DC5V (Integrated oscillator for exciting resolver: 10/20 kHz)
・Capable to set the number of poles for UVW (Selectable from X1, 2, 3, 4)
・Clock input (20MHz) : External CLK input / Crystal resonator / Ceramic resonator (Selectable)


Smartcoder AU6805 Series

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℃

Smartcoder AU6802N1

Output form Binary code parallel 10/12 bit bus compatible, positive logic
Resolution 1,024(210) 4,096(212)
Max Angular velocity 240,000min-1 60,000min-1
Conversion accuracy ±2 LSB ±4 LSB
Settling time
(For step input of 180°
in electric angle)
1msTyp.(ACMD="H") 2.5msTyp.(ACMD="H")
(As output response delay
in electric angle)
±0.2°Max/10,000min-1 ±0.4°Max/10,000min-1
2 Phase pulse signal(A,B) 256C/T 1,024C/T
Power supply voltage DC5V±5% 45mA Max.(30mA Typ.)
Operating Temperature -40∼+125℃
Storage temperature -65∼+150℃
Humidity 90%RH Max.
Mass 1g Max.

Resolver / Digital converters (Smartcoder) INQUIRIES

  • Contact/Claim
  • Request Catalog
  • Agency List
  • Catalog
  • Soft
  • CAD