TPA2000D1

2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER

SLOS328B – JUNE 2000 – REVISED MAY 2001

1

POST OFFICE BOX 655303

Without a Filter

Load

Class-D Technology:

– Low-Supply Current (No Filter) ...4 mA

– Low-Supply Current (Filter) . . . 7.5 mA

– Low-Shutdown Current . . . 0.05

µA

– Low-Noise Floor ...40

(No-Weighting Filter)

– Maximum Efficiency Into 8

Ω, 75 – 85 %

– 4 Internal Gain Settings ...6 – 23.5 dB

– PSSR . . . –77 dB

Ground, and Load)

Range

description

The TPA2000D1 is a 2-W mono bridge-tied-load

(BTL) class-D amplifier designed to drive a

speaker with at least 4-

Ω impedance. The

amplifier uses TI’s third generation modulation

technique, which results in improved efficiency

and SNR. It also allows the device to be connected directly to the speaker without the use of the LC output filter

commonly associated with class-D amplifiers (this will result in EMI which must be shielded at the system level).

These features make the device ideal for use in devices where high-efficiency is needed to extend battery run

time.

The gain of the amplifier is controlled by two input terminals, GAIN1, and GAIN0. This allows the amplifier to

be configured for a gain of 6, 12, 18, and 23.5 dB. The differential input terminals are high-impedance CMOS

inputs, and can be used as summing nodes.

The class-D BTL amplifier includes depop circuitry to reduce the amount of turnon pop at power up, and when

cycling SHUTDOWN.

The TPA2000D1 is available in the 16-pin TSSOP package (PW) which is capable of driving 2-W continuous

output power level into a 4-

Ω load. TPA2000D1 operates over an ambient temperature range of –40°C to 85°C.

AVAILABLE OPTIONS

TA

PACKAGED DEVICES

TA

TSSOP (PW)†

GQC

–40

°C to 85°C

TPA2000D1PW

TPA2000D1GQC

† The PW package is available taped and reeled. To order a taped and reeled

part, add the suffix R to the part number (e.g., TPA2000D1PWR).

Copyright

 2001, Texas Instruments Incorporated

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.

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2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

INP

INN

SHUTDOWN

GAIN0

GAIN1

OUTP

PGND

BYPASS

AGND

COSC

ROSC

OUTN

PGND

PW PACKAGE

(TOP VIEW)

MicroStar Junior

t (GQC) Package

(TOP VIEW)

AGND

PVDD

INN

INP

NOTE: The shaded terminals are used for thermal

connections to the ground plane.

BYPASS

COSC

OUTN

PGND

NC

ROSC

VDD

PVDD

PVDD

SHUTDOWN

GAIN0

GAIN1

PVDD

OUTP

NC – No internal connection, still requires a pad for the ball.

(SIDE VIEW)

A1

B1

C1

D1

E1

F1

G1

A7

B7

C7

D7

E7

F7

G7

A2

A6

This document contains information on products in more than one phase

of development. The status of each device is indicated on the page(s)

specifying its electrical characteristics.

MicroStar Junior is a trademark of Texas Instruments.