STA3398 datasheet(19/77 Pages) STMICROELECTRONICS

Part #	STA3398

Description	2.1-channel high-efficiency digital audio system

PDF	77 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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19 / 77 page

STA339BW

Electrical specifications

Doc ID 15251 Rev 5

19/77

3.7

Testing

3.7.1

Functional pin definition

Figure 5.

Test circuit 1

Figure 6.

Test circuit 2

Table 8.

Functional pin definition

Pin name

Number

Logic value

IC status

PWRDN

Low consumption

Normal operation

TWARN

A temperature warning is indicated by the external power

stage

Normal operation

EAPD

Low consumption for power stage

All internal regulators are switched off

Normal operation

DTr

DTf

Vcc

(3/4)Vcc

(1/2)Vcc

(1/4)Vcc

OUTxY

Low current dead time = MAX(DTr, DTf)

+Vcc

Duty cycle = 50%

INxY

OUTxY

gnd

vdc = Vcc/2

Rload = 8

Ω

High current dead time for Bridge application = ABS(DTout(A)-DTin(A))+ABS(DTOUT(B)-DTin(B))

+VCC

Rload = 4

Ω

OUTxB

DTout(B)

DTin(B)

DTout(A)

470nF

Iout

INxB

D06AU1651_00

INxA

DTin(A)

Duty cycle=A

Duty cycle=B

Duty cycle A and B: Fixed to have DC output current of Iout in the direction shown in figure

OUTxA

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