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.

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Description

User’s Manual

AU6805 Series

Features

・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)

Specifications

Model	AU6805
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℃

Resolver / Digital converters (Smartcoder)