Table of Contents
Advertisement
Quick Links
The DRV201EVM is an evaluation board to assist in evaluating the DRV201 IC as a voice coil motor
(VCM) driver for camera auto focus.
The device is an advanced voice coil motor driver for camera auto focus. It has an integrated D/A
converter for setting the VCM current. VCM current is controlled with a fixed frequency PWM controller or
a linear mode driver. Current generation can be selected via I
resistor for current regulation and the current can be controlled through I
When changing the current in the VCM the lens ringing is compensated with an advanced ringing
compensation function. Ringing compensation reduces the needed time for auto focus significantly. The
device has also VCM short and open protection functions.
The following related documents are available for download through the Texas Instruments web site at
http://www.ti.com.
1. DRV201 Voice Coil Motor Driver for Camera Auto Focus (SLVSB25)
2. USB Interface Adapter Evaluation Module (SLLU093)
SLVU528 – March 2012
Submit Documentation Feedback
DRV201 Evaluation Module
Figure 1. DRV201EVM
Copyright © 2012, Texas Instruments Incorporated
User's Guide
SLVU528 – March 2012
2
C register. Device has integrated sense
2
C.
DRV201 Evaluation Module
1
Advertisement
Table of Contents
Related Manuals for Texas Instruments DRV201
Summary of Contents for Texas Instruments DRV201
- Page 1 DRV201 Evaluation Module Figure 1. DRV201EVM The DRV201EVM is an evaluation board to assist in evaluating the DRV201 IC as a voice coil motor (VCM) driver for camera auto focus. The device is an advanced voice coil motor driver for camera auto focus. It has an integrated D/A converter for setting the VCM current.
-
Page 2: Table Of Contents
......................Jumpers ......................Test Points ..................... EVM Operation ........................Software ................. Software Installation Instructions ......................EVM Schematic ......................... PCB layout ......................Bill of Materials DRV201 Evaluation Module SLVU528 – March 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 3: Introduction
Introduction Description The DRV201EVM is an evaluation board to assist in evaluating the DRV201 IC as a voice coil motor (VCM) driver for camera autofocus. The device is an advanced voice coil motor driver for camera Auto focus. It has integrated D/A converter for setting the VCM current. -
Page 4: System Overview
C adapter has a 3.3-V supply rail which is used to supply the EVM so no external power supply is needed. • DRV201EVM: EVM board that houses the DRV201 and peripheral components. Figure 3. USB-to-GPIO Adapter DRV201 Evaluation Module SLVU528 – March 2012 Submit Documentation Feedback Copyright ©... -
Page 5: Hardware Overview
Hardware Overview The DRV201EVM allows evaluation of the DRV201 IC as a voice coil motor (VCM) driver for camera autofocus. DRV201EVM has separate connections for Isource and Isink pins that can be used to connect to any VCM actuator or VCM in a camera module. If VCM actuator is not available there are on board mounted inductor and resistor available to model VCM. -
Page 6: Connectors
P1. The adapter is connected to a Windows-based PC. WARNING When using external power DRV201EVM, it should be noted that the recommended supply range for DRV201 is from 2.5 V to 4.8 V. Jumpers The DRV201EVM operation can be configured using jumpers: •... -
Page 7: Software
‘high’. A white block means the bit is ‘low’. A write may be performed simply by clicking on an individual bit or an entire register may be written by using the write command on the left side of the GUI. SLVU528 – March 2012 DRV201 Evaluation Module Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... - Page 8 Software www.ti.com Figure 6. DRV201EVM GUI Main Figure 7. DRV201EVM GUI Basic DRV201 Evaluation Module SLVU528 – March 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
-
Page 9: Evm Schematic
EVM Schematic www.ti.com EVM Schematic SLVU528 – March 2012 DRV201 Evaluation Module Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 10: Pcb Layout
PCB layout www.ti.com PCB layout Figure 8. DRV201EVM Board Layer 1. (TOP) DRV201 Evaluation Module SLVU528 – March 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... - Page 11 PCB layout www.ti.com Figure 9. Board Layer 4. (BOTTOM) SLVU528 – March 2012 DRV201 Evaluation Module Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
-
Page 12: Bill Of Materials
NR4018T101M Taiyo Yuden Terminal Block 2 x 3.5 mm ED555/2DS On Shore Header, 2x5 Header, 1x3 JP1, JP2 Header, 1x2 IC, Autofocus driver DRV201 DRV201 Evaluation Module SLVU528 – March 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... - Page 13 Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
- Page 14 Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization.
- Page 15 FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
- Page 16 Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. Texas Instruments Japan Limited (address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan http://www.tij.co.jp...
- Page 17 FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2012, Texas Instruments Incorporated...
-
Page 18: Important Notice
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.