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 noncontact 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 Exploded View • 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 • Single 5V supply • Easy Assembly, No Signal Adjustment required • Direct Connectivity through PCB • RoHS compliant 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 Shaft 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 12 -40 to +125 Serial +5.0 AEAT-6010 10 -40 to +125 Serial +5.0 Notes: 1. For other options of Magnetic Encoder, please refer to factory. Table 1. Absolute Maximum Ratings [1, 2] 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: 1. 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. 2. 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 VSS+0.4 Output Current D0 IO 4 Input High Voltage CLK, CSn VIH Input Low Voltage CLK, CSn VIL Notes: 1. CSn is internal pull-up. Condition Min Typ. Max 16 20 VDD-0.5 Units Notes mA V 0.7*VDD V mA VDD pin = 4.5V 1 0.3*VDD Table 4. Timing Characteristics Timing Characteristics over Recommended Operating Range, typical at 25 °C Values Parameter Symbol Condition Min Data output activated (logic high) TDO active First data shifted to output register tCLK FE Start of data output TCLK/2 Data output valid TDO valid Data output tristate TDO tristate Pulse width of CSn TCSn 500 Sampling rate for absolute output fabs 9.9 Typ. Max Units Notes 100 ns 2 500 ns 3 500 ns 4 375 ns 5 100 ns 6 ns 7 kHz 8 10.42 10.94 Notes: 2. Time between falling edge of CSn and data output activated 3. Time between falling edge of CSn and first falling edge of CLK 4. Rising edge of CLK shifts out one bit a time 5. Time between rising edge of CLK and data output valid 6. After the last bit DO changes back to “tristate” 7. CSn=high; To initiate read-out of next angular position 8. Internal sampling rate. Package Dimensions Parameters 23mm 19mm Parameter Value 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 4 (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 * 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. Ø 23mm Base Plate Screw Mounting ∅ 17 Figure 1. Package and recommended mounting dimension No. Timing Characteristics CS t CS t CLKFE TCLK/2 CLK t CLKFE 10 1 DO D9 t DO active D8 D7 D6 t DO valid D5 D4 D3 D2 D1 D0 Figure 2. Timing Diagram for 10 bit Magnetic Encoder Electrical Connections Vss DO Pin Symbol 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) CLK CSn Figure 3. Electrical Connections Description ∅ 22.6 3.6 8.4 1.25 Figure 4. Basic connector dimensions For product information and a complete list of distributors, please go to our web site: D9 t DO Tristate Positional Data Bits 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. VDD 1 www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries. Data subject to change. Copyright © 2007 Avago Technologies Limited. All rights reserved. AV02-0188EN - March 20, 2007