TDA7292 datasheet(14/22 Pages) STMICROELECTRONICS

tên linh kiện	TDA7292

Giải thích chi tiết về linh kiện	40 W 40 W stereo amplifier with mute and standby

PDF	22 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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14 / 22 page

Applications information

TDA7292

14/22

Doc ID 15775 Rev 5

Applications information

Warning:

SOA protection:

If the TDA7292 is operated without a load connected to the

output terminals, the SOA protection circuit could be

activated when a high amplitude and high frequency signal is

applied to the input.

The frequency and amplitude of the signal able to trigger the

protection is a function also of the supply voltage level used.

If the above mentioned condition is possible when the

speakers are not connected, it is recommended to connect

the input to ground or add a dummy resistive load. For

example, a 1-k

Ω / 1-W resistor can be used at Vcc = ±26 V. If a

lower supply voltage is used, the resistor value must be

decreased accordingly.

5.1

Applications with dual supply

Figure 18.

Test and applications circuit (dual supply)

IN (L)

MUTE/

ST-BY

GND

IN (R)

R10

OUT (L)

OUT (R)

+VS

D94AU087B

RL (L)

RL (R)

+VS

-VS

IN- (L)

IN- (R)

SW1

SW2

ST-BY

MUTE

SW1 position

SW2 position

Mode

Standby

Mute

Play

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