class D amplifier board

详情

1. Introduce

SL-A*8 is the new design, it is new product of digital amplifier board，use SMT decal of main IC，connection is very simple。High Power efficiency，Less heat.

2. Aplication

• Power speaker
• Digital product
• Computer and laptop
• Portable product
• Wireless product
• TV, DVD and the other product　

3. Feature

• Output Power: Maximum *2.5W at RL=4&branded;, VCC=*2V
• Power efficiency is up to *3%
• Low Working Voltage Down To 4V, High Working Voltage up To *4V
• Thermal Protection function　
• Output Pin Short-Circuit Protection　
• Separate VCC & PVCC
• Class-D stereo audio design
• Components use SMT decal, the board dimension is very small
• IC decal is QFN*4
• No external heat-sink, Less heat, save heat sink cost
• The current is very small
• The PCB design provides both bead and LC solutions
• The dimension is only *2mm×*8mm　 

4. Parameter
 
PARAMETER Test Condition MIN  TYP  MAX UNIT
PO（MAX）
Continuous output power
(*****)at 1kHz
 RL=4&branded; *4V *2.5 W
  *2V *7 
  5V 3.6 
 RL=8&branded; *4V *3 W
  *2V *0 
  5V 1.8 
Output noise  **0 dBV
S/N Maximum output at THD+N＜0.5％,
f=1kHz *0 dB
Working Voltage  5      *2     *4 V