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Part: EK10
Category:
Others
Description: Evaluation Kit For Sa13/sa14 Pin-out
Company: Apex Microtechnology Corporation
Datasheet: Download EK10 datasheet File size : 74 kB
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Datasheet text preview:
EVALUATION KIT FOR SA13/SA14 PIN-OUT
EK10
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM
(800) 546-APEX
(800) 546-2739
INTRODUCTION
This easy-to-use kit provides a platform for the evaluation of PWM amplifiers using the SA13 or SA14 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 EK10 are provided in this kit. Hardware similar to that shown in figure 1 must be obtained locally.
ASSEMBLY
(See Figure 1) 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 SA13 or SA14. 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.
PARTS LIST
Part # HS18 MS04 EVAL 09 60SPG00001 TW05 OX7R105KWN Description Heatsink PC mount Cage Jacks PC Board Spacer Grommets Thermal Washer 1µF Cap 1825B105K201N, Novacap Quantity 1 1 Bag/12 each 1 4 1 Box/10 each 6
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.
Cage Jack PC Board (Silkscreen side) Solder as required
Spacer Grommet 6-32 x 1/2 Lg. Screw
TW05 thermal washer
Heatsink #8 or #10 Screw (1/2" - 3/4" LG) Switching Amplifier Hex Nut 6-32 THD 1/4"
FIGURE 1.
APEX MICROTECHNOLOGY CORPORATION · TELEPHONE (520) 690-8600 · FAX (520) 888-3329 · ORDERS (520) 690-8601 · EMAIL prodlit@apexmicrotech.com
EK10
FIGURE 2. PCB SCHEMATIC.
EVALUATION KIT FOR SA13/SA14 PIN-OUT
SA13/SA14
A block diagram for both the SA13 and SA14 is shown in Figure 2 along with pcb connections of all the commonly used external components. Your application circuit will not use all of the components. Add those components required by your circuit. You may have to jumper some components to make the desired electrical connections. J1 is an optional way to connect the clock circuit. Power supply bypassing is particularly important and that is why high quality ceramic chip capacitors are supplied with the kit. In addition you may need to add a 10-50 uF or larger capacitor on the +Vs pin. This additional capacitor needs to be rated for switching operation. Note that the signal ground and power ground are separated and tie together only at the ground pin (5). A breadboarding area is supplied which can accomodate 1 or 2 IC amplifiers and associated components. The large terminal pads can be used to solder wire connections or banana jacks. Note that the EK10 Evaluation Kit uses the same circuit board as the EK03 Evaluation kit intended for the Apex models SA03 and SA04. The SA13 and SA14 are half bridge versions of the SA03 and SA04 and are indentical in design except for that fact. Some of the pin designations of the SA13 and SA14 are, however, different. The SA13 and SA14's OUT (PIN 8) are equivalent to the SA03 and SA04's B OUT (PIN 8). The SA13 and SA14's PWR GND (PIN 7 ) are equivalent to the SA03 and SA04's I SENSE B (PIN7). Pins 11 and 12 of the SA13 and SA14 are not connected. The designations on the PCB are those used for the SA03 and SA04. See the SA13 or SA14 data sheet for specific operating considerations.
* * *
* Input protection, 10V zener diode.
APEX MICROTECHNOLOGY CORPORATION · 5980 NORTH SHANNON ROAD · TUCSON, ARIZONA 85741 · USA · APPLICATIONS HOTLINE: 1 (800) 546-2739
EVALUATION KIT FOR SA13/14 PIN-OUT
EK10
FIGURE 3. FUNCTIONAL TEST CIRCUIT
The schematic of Figure 3 can be used to verify the functionality of your amplifier and help you gain a familiarity with proper operation. At Out, with respect to ground, you should observe a square wave approximately 30 V in amplitude with a fixed frequency and duty cycle that varies from approximately 0 to 100% at a rate of 1 Hz.
SA13/SA14
APEX MICROTECHNOLOGY CORPORATION · TELEPHONE (520) 690-8600 · FAX (520) 888-3329 · ORDERS (520) 690-8601 · EMAIL prodlit@apexmicrotech.com
EK10
FIGURE 4. PCB COMPONENT SIDE
This data sheet has been carefully CORPORATION · to be NORTH SHANNON ROAD assumed for possible inaccuracies or USA · APPLICATIONS HOTLINE: 1 (800) 546-2739 APEX MICROTECHNOLOGY checked and is believed 5980reliable, however, no responsibility·isTUCSON, ARIZONA 85741 · omissions. All specifications are subject to change without notice. EK10U REV. B JANUARY 1998 © 1998 Apex Microtechnology Corp.
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