Input

Buffer

SC

300K

EN

TPA2039D1

SLOS652 – DECEMBER 2009

www.ti.com

OPERATING CHARACTERISTICS (continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

2

2

Short circuit protection

2

A

threshold

2

2

Time for which output is

disabled after a short circuit

event, after which

100

ms

auto-recovery trials are

continuously made

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

WCSP BALL

IN–

C1

I

Negative differential audio input.

IN+

A1

I

Positive differential audio input.

A3

O

Negative BTL audio output.

C3

O

Positive BTL audio output.

Analog ground terminal. Must be connected to same potential as PGND using a direct connection

GND

A2

I

to a single point ground.

High-current Analog ground terminal. Must be connected to same potential as GND using a direct

PGND

B3

I

connection to a single point ground.

B1

I

connection. Voltage must be within values listed in Recommended Operating Conditions table.

B2

I

direct connection. Voltage must be within values listed in Recommended Operating Conditions

table.

EN

C2

I

Enable terminal. Connect to Logic High voltage to enable device, Logic Low voltage to disable

(shutdown).

FUNCTIONAL BLOCK DIAGRAM

4

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