AEAT-6010-A06

AEAT-6010/6012 Magnetic Encoder 10 or 12 bit Angular Detection Device Data Sheet Description Features Avago Technologies’ AEAT-60xx series of magnetic encoders provides an integrated solution for angular detection. With ease of use in mind, these magnetic encoders are ideal for angular detection within 360°. Based on magnetic technologies, the device is non-contact and ensures reliable operations. It is able to provide absolute angle detection upon power-up, with a resolution of 0.0879°(12 bits version) or 0.35°(10bits version), which is equivalent to 4096 and 1024 positions per revolution respectively. The positional data is provided in serial bit stream. There is no upper speed limit; the only restriction is that there will be fewer samples per revolution as the speed increases. • 10 or 12 bits resolution • Contactless sensing technologies • Wide temperature range from -40° to 125°C • Absolute angular position detection • Synchronous serial interface (SSI) output for absolute position data (binary format) • Code monotony error = ± 1 LSB • 5V supply • Easy Assembly, No Signal Adjustment required • RoHS compliant Exploded View Applications • Flow meter Magnetic Encoder Plastic Housing • Angular detection • Knob control • Rotary encoder Sensor PCB Assembly Magnet Plastic Hub Snap Ring Motor Plastic Base Plate Customer 2 x screws Note: “This product is not specifically designed or manufactured for use in any specific device. Customers are solely responsible for determining the suitability of this product for its intended application and solely liable for all loss, damage, expense or liability in connection with such use.” Device Selection Guide [1] Part Number Resolution (bit) Operating Temperature (°C) Output Communication DC Supply Voltage (V), VDD AEAT-6012-A06 12 -40 to +125 Serial +5.0 AEAT-6010-A06 10 -40 to +125 Serial +5.0 Notes: 1. For other options of Magnetic Encoder, please refer to factory. Table 1. Absolute Maximum Ratings [2, 3] Parameter Symbol Limits Units DC Supply Voltage at pin VDD = 5V VDD -0.3 to + 7 V Input Voltage Vi -0.3 to VDD+0.3 V Storage Temperature TSTG -40 to 125 °C Notes Notes: 2. Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. 3. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Table 2. Recommended Operating Condition Parameter Symbol Values Units DC Supply Voltage at pin VDD = 5V VDD +4.5 / +5.5 V Ambient Temperature Tamb –40 to +125 °C Maximum Read-out Frequency fCLK ≤1 MHz Notes >0 MHz Table 3. DC Characteristics DC Characteristics over Recommended Operating Range, typical at 25 °C Values Parameter Symbol VDD Supply Current IDD Output High Voltage D0 VOH Output Low Voltage D0 VOL Output Current D0 IO Input High Voltage CLK, CSn VIH Input Low Voltage CLK, CSn VIL Note: 4. CSn is internal pull-up. 2 Condition Min Typ. Max Units 16 20 mA VDD-0.5 Notes V VSS+0.4 4 0.7*VDD V mA VDD pin = 4.5V 4 0.3*VDD Package Dimensions Base Plate Screw Mounting 8.5 ±1.0 Mounting base Shaft 0 ‡ 6 -0.01 .5 C0 ‡17 23mm 19mm Ø 23mm Figure 1. Package and recommended mounting dimension Parameters No. Parameter 1 Operating Temp(˚C) - 40 to +125 2 Shaft axial play (mm) ± 0.08 3 Shaft TIR (mm) 0.05 4 Mechanical speed (rpm) 12,000 5 Shaft diameter (mm) 6 + 0 / -0.01 6 Moment inertia (g-cm^2) 0.104 7 Shaft length – (mm) 8.5 ±1.0 8 Mounting screw size (mm) M2 x 0.4 x 8 (socket head cap screw, head Ø3.8 ± 0.18 mm) 9 Recommended screw torque 0.6 lb.inch 10 Encoder base plate thickness (mm) 2 11 Bolt circle ± 0.13 * 3 Value Note:- For high temperature application, it is highly recommended that adhesive be applied at least to the screw and the base plate interface. Refer Application Note for further details. Table 4. Timing Characteristics Timing Characteristics over Recommended Operating Range, typical at 25 °C Values Parameter Symbol Data output activated (logic high) TDO active Condition Min Typ. Max Units Notes 100 ns 1 First data shifted to output register tCLK FE 500 ns 2 Start of data output TCLK/2 500 ns 3 Data output valid TDO valid ns 4 375 100 Data output tristate TDO tristate Pulse width of CSn TCSn 500 Sampling rate for absolute output fabs 9.9 10.42 Power-up time 10-bit version 12-bit version tCF - - ns 5 ns 6 10.94 kHz 7 50 20 ms ms 8 Notes: 1. Time between falling edge of CSn and data output activated 2. Time between falling edge of CSn and first falling edge of CLK 3. Rising edge of CLK shifts out one bit a time 4. Time between rising edge of CLK and data output valid 5. After the last bit DO changes back to “tristate” 6. CSn=high; To initiate read-out of next angular position 7. Internal sampling rate. 8. Until internal compensation finished Timing Characteristics CS t CS t CLKFE CLK TCLK/2 t CLKFE 10 1 DO D9 t DO active D8 D7 D6 D5 D4 D3 t DO valid Notes: 1. Please refer to Table 4 for Timing Characteristics. 2. For 12 bits version; the Positional Data Bits will start with D11 instead and end at D0. 4 D1 D0 D9 t DO Tristate Positional Data Bits Figure 2. Timing Diagram for 10 bit Magnetic Encoder D2 1 Table 5. Linearity Parameter Symbol Min. Typ. Max Units ± 2.4 [2] Deg. ± 0.176 ± 0.044 Deg. Deg. Integral Non-Linearity INL - ± 0.8 [1] Differential Non-Linearity 10-bit version 12-bit version DNL - - Notes No missing codes No missing codes Notes: 1. Average value at typical operating and mounting conditions. 2. Maximum value over recommended operating range and over radial & axial mounting tolerances. Linearity Definitions Integral non-linearity Differential non-linearity Integral non-linearity (INL) is the maximum deviation between actual angular position and the position indicated by the encoder’s output count, over one revolution. It is defined as the most positive linearity error +INL or the most negative linearity error –INL from the best fit line, whichever is larger. Differential non-linearity (DNL) is the maximum deviation of the step length from one position to the next. Encoder Output Count 1024 Most Negative Linearity Error -INL 512 Most Positive Linearity Error +INL Ideal Curve Actual Curve 0 0 90 180 270 Angular Position (Mechanical Degree) 360 Figure 3. Integral non-linearity Table 6. Environmental Specifications Parameter Reference Standard Test Conditions Level Electrostatic discharge (ESD) immunity Power frequency magnetic field immunity IEC/EN 61000-4-2 IEC/EN 61000-4-8 Pulse magnetic field immunity Damped oscillatory magnetic field immunity IEC/EN 61000-4-97 IEC/EN 61000-4-10 8kV 30 A/m (continuous field) 300 A/m (short duration field) 1000 A/m 100 A/m Level 4 Level 5 Level 5 IEC/EN 60068-2-6 IEC/EN 60068-2-27 10-500Hz at 5G 6ms at 200G Electromagnetic Compatibility (EMC) [1] Mechanical Durability Vibration (Operating) Shock Notes: 1. Suitable for applications in Industrial Environment Class 4. 5 Electrical Connections VDD Vss CSn DO CLK Pin Symbol Description 1 VDD 5V Supply Voltage 2 CSn Chip Select – Input (See Figure 2) 3 VSS Supply Ground 4 CLK Serial Clock - Input (See Figure 2) 5 DO Serial Data - Output. (See Figure 2) ‡ 22.6 3.6 Figure 4. Electrical Connections 8.4 1.25 Figure 5. Basic connector dimensions Alignment Tool Set - Part number HEDS-8934 This optional alignment tool set consists of a gap setting plate and a centering jig. Refer to Application Note 5317 for the assembly guide. ‡6.02 ‡11.98 +0.01 0 11.0 0 -0.01 Centering Jig 0.50 ±0.01 R1 11.85 ±0.1 .1 0 +0 .02 R3 R1 Gap Setting Plate Figure 6. Alignment tool set and recommended dimensions 6 5 31.5 Ordering Information AEAT - 601 0 - 5V - 1 - Kit Encoder 0 - 10 bits 2 - 12 bits A - Serial Output For product information and a complete list of distributors, please go to our web site: 06 - 6mm www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2011 Avago Technologies. All rights reserved. AV02-0188EN - August 12, 2011