2. Features
◆
Suitable for CMOS ,TTL, the other digital IC’
s power supply
◆
Internal thermal overload protection
◆
Internal short circuit current limiting
◆
Output current in excess of 1 A
◆
Metal Fin is fully covered with Mold Resin
3. PIN DESCRIPTION
PIN No.
Symbol
I/O
Description
1
Input
I
Input +18V
2
Common
I
Ground
3
Output
O
12V
3.5.15 function introduction to 7912
1. Description
LM7812 is +12V voltage regulator, locates on power board in this player and is used to ge12
stable voltage.
2. Features
◆
Suitable for CMOS ,TTL, the other digital IC’
s power supply
◆
Internal thermal overload protection
◆
Internal short circuit current limiting
◆
Output current in excess of 1 A
◆
Metal Fin is fully covered with Mold Resin
3. PIN DESCRIPTION
PIN No.
Symbol
I/O
Description
1
Input
I
Input -18V
2
Output
O
Output -12V
3
Common
I
Ground
3.5.16 function introduction to NE5532
1. DESCRIPTION
The NE5532 is high-performance operational amplifiers combining excellent DC and AC characteristics. It
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