EK03 Cirrus Logic Inc, EK03 Datasheet - Page 2

• Manufacturer Part Number: EK03
• Description: EVALUATION KIT FOR SA03
• Manufacturer: Cirrus Logic Inc
• Series: Apex Precision Power™r

Specifications of EK03

• Main Purpose: Power Management, H Bridge Driver (Internal FET)
• Embedded: No
• Utilized Ic / Part: SA03
• Primary Attributes: 16 V ~ 100 V Supply, 30A Output
• Secondary Attributes: Assembly Required
• Product: Amplifier Modules
• Description/function: Audio Amplifiers
• For Use With/related Products: SA03
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1456; EK03

EK03
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 con-
nections. 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.
FIGURE 2. PCB SCHEMATIC.
2
A block diagram of the amplifier is shown in Figure 2 along with
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Input protection, 10V zener diode.
*
*
SA03
*
P r o d u c t I n n o v a t i o n F r o m
tionality of your amplifier and help you gain a familiarity with
proper operation. At either A Out or B 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. The current
limit is set to 2 amps.
FIGURE 3. FUNCTIONAL TEST CIRCUIT
The schematic of Figure 3 can be used to verify the func-
SA03
EK03U