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FEATURES

DESCRIPTION

APPLICATIONS

INN

INP

GAIN0

SHUTDOWN

PGND

VCLAMP

BSN

OUTN

OUTN

PGND

VREF

BYPASS

COSC

ROSC

AGND

AGND

BSP

OUTP

GAIN1

OUTP

PGND

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

R3

51

Ω

C9

0.22

µF

C6

1

µF

D1

C12

220 pF

C11

1

µF

C3

1

µF

C4

1

µF

L2

(Ferrite

Bead)

L1

(Ferrite

Bead)

C15

1 nF

C14

1 nF

D2

R2

51

Ω

C8

0.22

µF

C5

1

µF

C7

10

µF

C10

1

µF

C1

0.47

µF

C2

0.47

µF

IN−

IN+

GAIN SELECT

GAIN SELECT

SHUTDOWN

CONTROL

U1

TPA3007D1

R1

120 k

Ω

TPA3007D1

SLOS418A – SEPTEMBER 2003 – REVISED DECEMBER 2004

6.5-W MONO CLASS-D AUDIO POWER AMPLIFIER

•

6.5 W Into 8-

Ω Load From 12-V Supply

The TPA3007D1 is a 6.5-W mono bridge-tied load

(10% THD+N)

(BTL) class-D audio power amplifier with high ef-

ficiency, eliminating the need for heat sinks. The

•

TPA3007D1 can drive 8-

Ω speakers with only a

to GND, Short Between Outputs)

ferrite bead filter required to reduce EMI.

•

Third-Generation Modulation Technique:

The gain of the amplifier is controlled by two input

– Replaces Large LC Filter With Small,

terminals, GAIN1 and GAIN0. This allows the ampli-

Low-Cost Ferrite Bead Filter in Most

fier to be configured for a gain of 12, 18, 23.6, and 36

Applications

dB. The differential input stage provides high com-

– Improved Efficiency

mon mode rejection and improved power supply

rejection.

– Improved SNR

•

Low Supply Current . . . 8 mA Typ at 12 V

The amplifier also includes depop circuitry to reduce

the amount of pop at power-up and when cycling

•

Shutdown Control . . . <1 µA Typ

SHUTDOWN.

The TPA3007D1 is available in the 24-pin TSSOP

package (PW) and does not require an external heat

•

LCD Monitors/TVs

sink.

•

Desktop Replacement Notebook PCs

•

Hands-Free Car Kits

•

Powered Speakers

Functional Schematic Diagram

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2003–2004, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.