STA530 データシートの表示（PDF） - STMicroelectronics
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STA530 Datasheet PDF : 17 Pages
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STA530
EXTERNAL COMPONENTS
Name
Function
Resistor for tracking input voltage
R1 = R2 =R7 = R8 filter
Resistor for tracking input voltage
R5 = R6 =R3 = R4 filter
Cac
AC Decoupling capacitor
C1 = C2 = C3 = C4
R9=R10=R11=R12 Resistor for tracking input voltage filter
C5 = C6 = C7 = C8 Capacitor for Tracking input
voltage filter
C9=C10=C11=C12 Dc decoupling capacitor
R17
Bias Resistor for Stby/Mute function
R18
Stby/Mute constant time resistor
R19
Mute resistor
C19
Capacitor for Stby/Mute resistor
C17 = C18
Power supply filter capacitor
R13 = R14
Centering resistor
C13 = C14
Tracking rail power supply filter
R15
TRK_out
R16
Protection
C15 = C16
Power supply filter capacitor
D1
Schottky diode
Value
10KΩ
56KΩ
100nF
(fp = 16Hz,
Rac =100KΩ )
10KΩ
1nF
1µF
10KΩ
30KΩ
30KΩ
2.2µF
100nF
330 Ω, 1W
680nF
40KΩ
1KΩ
470 µF , 63V
SB360
Formula
Cac = 2----π-----⋅---f--p-1----⋅---R-----a----c-
Figure 7. BASH® module SAM261 6.1 with 2 x STA530 (see Application Note AN1643)
+50VDC
Signal Power Supply
+/-24V DC / m5A0
Buck
Regulator
Dynamic Power Supply
(CD+ & CD-)
STA530
4 x 50Watts
STABP01
Lines of Controls
Controller
AudioInputs
STA530
1 x 100Watts
2 x 50Watts
8 Ohm Loads
BASH fi module SAM261 6.1
+/-24V DC / m5A0
Signal Power Supply
4 Ohm Load
Power - On-Off sequences:
In order to avoid damages to the SAM261 board it is important to follow these sequences:
At Power-On apply in the first the Auxiliary Power Supply (±24V) and after the Main Power Supply
(+50V), in this condition the system is in "Mute state" and it can move in "play state" with the switch present
on the pcb.
At Power-Off is better to bring the SAM module in "Mute state" and after that to follow this order: switch-
off the Main Supply Voltage (+50V) and subsequently the Auxiliary Power Supply. (±24V).
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