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SML-LXT0805YW-TR Datasheet(PDF) 8 Page - Texas Instruments |
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SML-LXT0805YW-TR Datasheet(HTML) 8 Page - Texas Instruments |
8 / 28 page 100k 470pF 100k 470pF OUT OUT- OUT+ From DRV2603 Hardware Configuration www.ti.com Table 2. Hardware Overview (continued) Signal Description I/O The audio jack is connected to an ADC on the MSP430. This is used for Audio Input audio-to-haptics conversion using special software on the MSP430. Hardware configuration details can be found in the following sections. 3.2 Power Supply Selection The DRV2603EVM-CT can be powered by USB or an external power supply (VBAT). Jumpers “DRV” and “MSP” are used to select USB or VBAT for the DRV2603 and MSP430G2553, respectively. See the following table for possible configurations. Supply Configuration DRV MSP DRV2603 Supply Voltage (1) USB – Both USB USB 5V DRV2603 External Supply, MSP430 VBAT USB VBAT USB External Supply - Both VBAT VBAT VBAT USB with 3.3V LDO (2) - Both USB USB 3.3V (R4 = Short, R5 = Open) (1) The DRV2603 supply must be on before operating the MSP430. (2) If a 3.3V DRV2603 supply voltage is preferred while using the USB as the power source, remove R5 and add a zero ohm resistor across R4. 3.3 Using an External Actuator Figure 8. Terminal Block and Test Points The DRV2603EVM-CT can be used with an external actuator. Follow the instructions below to attach an actuator to the "OUT" terminal block. 1. Remove jumpers JP3 and JP4, which will disconnect the on-board actuators from the DRV2603. 2. Attach the positive and negative leads of the actuator to the green “OUT” terminal block keeping in mind polarity. 3. Screw down the terminal block to secure the actuator leads. It is important to use the green terminal block when connecting an external actuator. The "OUT+" and "OUT-" testpoints have low-pass filters and should only be used for oscilloscope and bench measurements. 8 DRV2603 ERM/LRA Haptic Driver Evaluation Kit SLOU340A – May 2012 – Revised May 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated |
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