APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739

2

EK03

EVALUATION KIT

FOR SA03 PIN-OUT

FIGURE 2. PCB SCHEMATIC.

A block diagram of the amplifier 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 connec-

tions or banana jacks.

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