STA575 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STA575

100+100W STEREO BASH® POWER AMPLIFIER

STMicroelectronics 

STA575

EXTERNAL COMPONENTS (refer to fig. 6)

Name

Function

Ri

R1 = R2

Input resistor

Rr

R3 = R4

Cac

C1 = C2

Feedback resistor

AC Decoupling capacitor

Cct

C3 = C4

Capacitor for the attack time

R5 = R6

Release constant time Resistor

R7 = R8

R9 = R10

R11 = R12

C5 = C6

C7 = C8

R13

R14

R15

C9

R16 = R17

Resistor for tracking input voltage

filter

Resistor for tracking input voltage

filter

Resistor for tracking input voltage

filter

Capacitor for Tracking input

voltage filter

Dc decoupling capacitor

Bias Resistor for Stby/Mute

function

Stby/Mute constant time resistor

Mute resistor

Capacitor for Stby/Mute resistor

Sensing resistor for SOA detector

R18

Conversion resistor for threshold

voltage

C10 = C11

Power supply filter capacitor

R22 = R24

Centering resistor

C12 = C13

Tracking rail power supply filter

R19

Protection

R20

TRK_out

C14 = C15

Power supply filter capacitor

C16 = C17

Feedback capacitor

D1

Schottky diode

Note: Vcontrol is the voltage at Att_Rel pin.

Value

10KΩ

(|G| = 5, Rr = 50KΩ)

50KΩ

(|G| = 5, Ri = 10KΩ

100nF

(fp = 16Hz,

Rac =100KΩ )

2.2µF

(Tattack = 13mSec,

Vcontrol = 9V,

Ict = 1.5mA)

470KΩ

(t = 1 Sec. ,

Cct = 2.2 µF )

10KΩ

56KΩ

10KΩ

1nF

1µF

10KΩ

30KΩ

30KΩ

2.2µF

100mΩ

5% 4W

100KΩ

100nF

400 Ω , 1W

680nF

1KΩ

40KΩ

470 µF , 63V

100pF

SB360

Formula

Ri = -R-G----r-

Rr = G ⋅ Rr

Cac = 2----π-----⋅---f--p-1----⋅---R-----a----c-

Cct = attackV-----c---o--I--cn---t-t--r---o---l

Rct = C----τ-c----t

12/20

Share Link: