Datasheet

Input
Buffer
SC
300KΩ
EN
TPA2039D1
SLOS652A –DECEMBER 2009–REVISED JUNE 2010 www.ti.com
OPERATING CHARACTERISTICS (continued)
V
DD
= 3.6 V, T
A
= 25°C, R
L
= 8 Ω (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
DD
= 3.6 V, V
O+
shorted to VDD 2
V
DD
= 3.6 V, V
O–
shorted to VDD 2
Short circuit protection
I
SC
V
DD
= 3.6 V, V
O+
shorted to GND 2 A
threshold
V
DD
= 3.6 V, V
O–
shorted to GND 2
V
DD
= 3.6 V, V
O+
shorted to V
O–
2
Time for which output is
disabled after a short circuit
T
AR
event, after which V
DD
= 2.5 V to 5.5 V 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.
V
O-
A3 O Negative BTL audio output.
V
O+
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.
Power supply terminal. Must be connected to same power supply as PV
DD
using a direct
V
DD
B1 I
connection. Voltage must be within values listed in Recommended Operating Conditions table.
High-current Power supply terminal. Must be connected to same power supply as V
DD
using a
PV
DD
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
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