A7240_15 Datasheet, PDF (4/6 Pages) Unisonic Technologies – 20W BRIDGE AMPLIFIER FOR CAR RADIO

A7240
 TEST AND APPLICATION CIRCUIT
LINEAR INTEGRATED CIRCUIT
+V_SS
C4
220μF
C5
0.1μF
INPUT
3
C1
1μF
6
UTC A7240
7
OUT
STANDBY
2
C2
22μF
5
1
4
C3
22μF
C7
0.22μF
R2
2.2Ω
R1
2.2Ω
C6
0.22μF
COMPONENT USAGE SUGGESTION
Component
R1, R2
C1
C2
C3
C4
C5
C6, C7
Suggest
2.2W
1μF
22μF
22μF
220μF
0.1μF
0.22μF
Purpose
Frequency Stability
Input DC Decoupling
Ripple Rejection
Feedback low
Frequency Cutoff
Supply Filter
Supply Bypass
Frequency Stability
Larger than
Smaller than
Danger of High Frequency
Oscillation
Higher Turn On and Stand-by Delay
Higher Turn On Pop.
Higher Low Frequency Cutoff
Increase of SVR Increase of the
Turn On Delay
Degradation of SVR
Higher Low Frequency Cutoff
Danger of Oscillation
Danger of Oscillation
Danger of Oscillation
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R107-048.C