EK01 Cirrus Logic Inc, EK01 Datasheet - Page 2

• Manufacturer Part Number: EK01
• Description: EVALUATION KIT FOR SA01
• Manufacturer: Cirrus Logic Inc
• Series: Apex Precision Power™r

Specifications of EK01

• Main Purpose: Power Management, H Bridge Driver (Internal FET)
• Embedded: No
• Utilized Ic / Part: SA01
• Primary Attributes: 16 V ~ 100 V Supply, 20A Output
• Secondary Attributes: Assembly Required
• Product: Amplifier Modules
• Description/function: Audio Amplifiers
• For Use With/related Products: SA01
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1455; EK01

EK01
FIGURE 2. PCB SCHEMATIC.
TYPICAL COMPONENT FUNCTIONS
2
R12, 13, 15, 16
FEEDBACK
D5 – D7
D1 – D4
C10, 11
C3, 4
TACH/
R10
R14
R17
C12
C13
R11
GND
OUT
REF
R1
R2
R3
R4
R5
R6
R7
R8
R9
C1
C2
C5
C6
C7
C8
C9
SIG
–IN
+IN
D6
11V
C9
C3
Provides -IN bias from the Reference voltage.
Sets DC scaling for external feedback such as tachometers, position sensors or current sensors.
With R4 sets DC operating point of +IN, with R13 and R15 sets gain of voltage feedback circuit.
With R3 sets DC operating point of +IN.
Input scaling of the control signal.
With C6 sets the corner frequency of the integrator.
With C3 & C4 forms a low pass filter for the external feedback loop. Often used with tachometers.
With C2 forms a low pass filter for the current limit circuit.
Current sense. Often is a piece of resistance wire.
With R8 divides shutdown signal voltage feeding SHDN/FILTER pin.
With C5 sets corner frequency for external feedback loop.
Provides voltage feedback for a voltage controlled output.
Helps set gain or scale input voltage levels.
With C12 provides low pass filtering of +IN signal.
Power supply bypass.
With R8 form a low pass filter for the current limit circuit, also filters the SHDN signal.
With R7 forms a low pass filter for the external feed back loop. Often used with tachometers.
With R11 sets corner frequency for external feedback loop.
With R6 sets the corner frequency of the integrator.
Power supply bypass, must have very low ESR in MHz range.
Filters reference or feedback voltage at +IN.
Bypass for the reference voltage.
With R15 and R16 provides low pass filtering of voltage feedback.
With R17 provides low pass filtering of +IN signal.
Provides AC coupling of +IN signal.
Optional flyback diodes.
Input protection zener diodes.
R5
R7
R14
C13
11V
D7
R1
C4
R11
R4
C5
C12
R17
R2
R6
1
5
2
R3
C8
7.5V
–IN
REF
+IN
SA01
P r o d u c t I n n o v a t i o n F r o m
SHDN/
FILTER
EA
C6
R13
EA
OUT
10
R12
C2
3
I
R8
SENSE
C10
C11
PWM
8
7
+V S
R9
GND
OUT
OUT
R16
R15
4
A
B
6
9
C1
D4
D5
11V
D1
D2
R10
C7
D3
+V S
A OUT
B OUT
GND
SHDN
SIG
EK01U