Akai LCT42Z7TAP, Руководство по обслуживанию

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Digital Power Amplifier
R2S15102NP
Consideration about the PCB design
(1)PCB basic design (copper plane)
<the best design : 4 layer PCB>
The Power dispassion at 10Wx2ch(SE) or 20Wx1ch(BTL) is estimated
almost 2W. It has enough margin, designing the PCB at
θ
ja=30
℃
/W.
thermal via
<PCB size estimation >
10Wx2ch: 75mm x 75mm
The exposed die pad is directly soldered with the printed-circuit board pattern .
GND plane
PCB
Power plane
<the economy design : 2 layer PCB>
Thermal Via
Rich GND&Power line Area
Additional
Thermal Via
PCB
The GND&Power line total area size is also equal to the above GND&Power
line total area size of the 4layer PCB.
<PCB size estimation >
10Wx2ch: (75+
α
)mm x (75+
α
) mm
(2)PCB Thermal Pad
PCB
Thermal Via
Thermal Pad
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