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EK17

EVALUATION KIT FOR SA12 PWM AMPLIFIER

Apex Microtechnology

EK17 Datasheet PDF : 4 Pages

1 2 3 4

EVALUATION KIT

FOR SA12 PWM AMPLIFIER

EK17

FIGURE 3. PCB SCHEMATIC.

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A block diagram of the SA12 is shown in Figure 3 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, a large electrolytic capacitor is included. This

capacitor was selected expressly for this evaluation kit

and may not be (and likely won't be) suitable for your end

application. You will need to select an electrolytic capacitor

based on your analysis of the capacitor's ripple current,

ripple current tolerance, operating temperature, operating

voltage, acceptable service life and acceptable supply

ripple. 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 connec-

tions or bannana jacks.

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APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

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