TDA7490 datasheet(1/10 Pages) STMICROELECTRONICS

部件名	TDA7490

功能描述	25W 25W STEREO CLASS-D AMPLIFIER 50W MONO IN BTL

PDF	10 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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TDA7490

December 2005

1FEATURES

■ 25W + 25W OUTPUT POWER:

@RL = 8

Ω/4Ω; THD = 10%

■ HIGH EFFICIENCY

■ WIDE SUPPLY VOLTAGE RANGE (FROM ±10

TO ±25V)

■ SPLIT SUPPLY

■ TURN OFF/ON POP FREE

■ ST-BY AND MUTE FEATURES

■ SHORT CIRCUIT PROTECTION ACROSS

THE LOAD

■ THERMAL OVERLOAD PROTECTION

■ EXTERNALLY SINCHRONIZABLE

■ BRIDGE CONFIGURATION

2DESCRIPTION

The TDA7490 is a dual audio class D amplifier as-

sembled in Flexiwatt 25 package; it is specially de-

signed for high efficiency application mainly for TV

and Home Stereo sets.

25W + 25W STEREO CLASS-D AMPLIFIER

50W MONO IN BTL

Figure 2. Test and Application Circuit. (Stereo Configuration)

PWM-stage1

G=2.5

PREAMPLIFIER1

INTEGRATOR1

R21 4.7K

C26 470pF C25 470pF

R20

68K

R17 52.3K

C23

2200

µF

C22

100nF

C21

2200

µF

R4

130K

L1 30

µ

INPUT1

OSC

C19

560pF

C20

33nF

C18 330pF

C17

24pF

C16 330pF

R15

100

-VCC

R14 22K

R12 22K

C10

220nF

OUT1

PWM-stage2

L2 30

µ

OUT2

C29

220nF

R13

10K

C15

560pF

R11

100

-VCC

EXT_CK

G=2.5

PREAMPLIFIER2

C8 470pF

C9 470pF

R6

68K

R5 4.7K

C14

33nF

R9 52.3K

+VCC

-VCC

+VCC

-VCC

C28

2200

µF

C12

2200

µF

C11

100nF

C1 330nF

C2

1nF

STBY

MUTE

R2

30K

C27

2.2

µF

R1 10K

C3

100nF

C4

100nF

INPUT2

C5 330nF

C6

1nF

-VCC

D98AU978A

79

14

2

4

6

10

12

13

16

1

25

18

19

17

20

24

22

21

23

15

8

11

3

5

INTEGRATOR2

R3

10K

C7 100nF

R1 10K

R 6.8

Rev. 6

Figure 1. Package

Table 1. Order Codes

Part Number

Package

TDA7490

Flexiwatt 25

类似零件编号 - TDA7490

制造商	部件名	数据表	功能描述
STMicroelectronics	TDA7490L	172Kb / 9P	15W 15W STEREO CLASS-D AMPLIFIER28W MONO IN BTL Mar-2001
	TDA7490L	242Kb / 11P	20W 20W STEREO CLASS-D AMPLIFIER 40W MONO IN BTL Dec-2005
	TDA7490LSA	188Kb / 13P	15W 15W Stereo Class-D Amplifier 24-Nov-2005
	TDA7490L	242Kb / 11P	20W 20W STEREO CLASS-D AMPLIFIER 40W MONO IN BTL Dec-2005
	TDA7490SA	173Kb / 13P	10W 10W Stereo Class-D Amplifier 24-Nov-2005

More results

类似说明 - TDA7490

制造商	部件名	数据表	功能描述
STMicroelectronics	TDA7482	112Kb / 6P	25W MONO CLASS-D AMPLIFIER Jun-1998
Sanyo Semicon Device	STK4199MK2	721Kb / 7P	3-channel AF Power Amplifier (- Dual Power Supply) 25W50W25W
Maxim Integrated Produc...	MAX9709	647Kb / 24P	25W/50W, Filterless, Spread-Spectrum, Stereo/Mono, Class D Amplifier Rev 0; 9/05
STMicroelectronics	TDA7490L	172Kb / 9P	15W 15W STEREO CLASS-D AMPLIFIER28W MONO IN BTL Mar-2001
Monolithic Power System...	EV0045	291Kb / 6P	Compact 25W Class D Stereo Bridged Audio Amplifier
Microsemi Corporation	LX1725	377Kb / 23P	15W15W Stereo Class-D Amplifier Filterless 30W Mono in BTL
STMicroelectronics	TDA7482	114Kb / 7P	25W MONO CLASS-D AMPLIFIER Oct-2004
STMicroelectronics	TDA7490L	242Kb / 11P	20W 20W STEREO CLASS-D AMPLIFIER 40W MONO IN BTL Dec-2005
Unisonic Technologies	TDA7265	244Kb / 8P	25W25W STEREO AMPLIFIER WITH MUTE & STAND-BY
Maxim Integrated Produc...	MAX9709	1Mb / 20P	25W/50W, Filterless, Spread-Spectrum, Stereo/Mono, Class D Amplifier 19-3769; Rev 2; 5/14