EK03 APEX | Alldatasheet
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Technical content
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com INTRODUCTION This easy-to-use kit provides a platform for the evaluation of PWM amplifiers using the SA03 pin-out configuration. It can be used to analyze a multitude of standard or proprietary circuit configurations, and is flexible enough to do most standard amplifier test configurations. The board is designed for surface mounting all components except the switching amplifier. The schematic is shown in Figure 2. Note that all of the components shown on the schematic will probably not be used for any single circuit. Some components will simply be omitted, while others require installation of a jumper to complete the signal path. Only components unique to the EK03 are provided in this kit. Hardware similar to that shown in figure 1 must be obtained locally. PARTS LIST Part # Description Quantity HS18 Heatsink 1 MS04 PC mount Cage Jacks 1 Bag/12 each EVAL09 PC Board 1 60SPG00001 Spacer Grommets 4 TW05 Thermal Washer 1 Box/10 each ASSEMBLY 1. From the non-silk screen side, insert and solder cage jacks. Be sure each one is fully seated. 2. From the non-silk screen side, push spacer grommets into PC board until fully seated. Grommets will snug when screws are inserted for heatsink mounting. 3. Apply TW05 thermal washer to the bottom of the amplifier. 4. Use #14 sleeving to insulate and align at least 2 opposite pins of the amplifier. 5. Mount amplifier to heatsink using #6 screws and nuts. Torque the part to the specified 8 to 10 in-lbs (.9 to 1.13 N*M). Do not over torque. 6. Install components as needed. External connections may be soldered directly or standard banana jacks may be soldered to these pads. 7. Insert amplifier pins into cage jacks and fasten board to heatsink. OX7R105KWN 1µF Cap 1825B105K201N, 6 Novacap BEFORE YOU GET STARTED * All Apex amplifiers should be handled using proper ESD precautions. * Always use the heatsink included in this kit with TW05 washer. * Always use adequate power supply bypassing. * Do not change connections while the circuit is powered. * Initially set all power supplies to the minimum operating levels allowed in the device data sheet. * Check for oscillations. FIGURE 1.
FIGURE 2. PCB SCHEMATIC.
FIGURE 3. FUNCTIONAL TEST CIRCUIT
FIGURE 4. PCB This data sheet has been carefully checked and is believed to be reliable, however, no responsibility is assumed for possible inaccuracies or omissions. All specifications are subject to change without notice. EK03U REV F JANUARY 2005 © 2005 Apex Microtechnology Corp.