Datasheet

TPA0253
1-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, V
DD
= 5 V, T
A
= 25°C (unless otherwise
noted)
PARAMETER TEST CONDITIONS
MIN TYP MAX UNIT
|V
OO
| Output offset voltage (measured differentially)
R
L
= 4 Ω, ST/MN = 0 V, SHUTDOWN = 2 V
30 mV
PSRR Power supply rejection ratio V
DD
= 4.9 V to 5.1 V, BTL mode 62 dB
|I |
High level input current
SHUTDOWN, V
DD
=5.5 V, V
I
= V
DD
1
A
|I
IH
| High-level input current
ST/MN
, V
DD
= 5.5 V, V
I
= V
DD
1
µA
|I |
Low level input current
SHUTDOWN, V
DD
= 5.5 V, V
I
= 0 V 1
A
|I
IL
| Low-level input current
ST/MN
, V
DD
= 5.5 V, V
I
= 0 V 1
µA
Z
I
Input impedance 50
kΩ
I
DD
Supply current SHUTDOWN = 2 V 3.2 4.8 mA
I
DD(SD)
Supply current, shutdown mode SHUTDOWN = 0 V 1 10
µA
operating characteristics, V
DD
= 5 V, T
A
= 25°C, R
L
= 8 Ω, f = 1 kHz (unless otherwise noted)
PARAMETER TEST CONDITIONS
MIN TYP MAX UNIT
P
Output power (see Note 1)
THD = 0.1%, BTL mode 1 W
P
O
Output power (see Note 1)
THD = 0.1%, SE mode,
R
L
= 32 Ω
85 mW
THD + N
Total harmonic distortion plus
noise
P
O
= 1 W, f = 20 Hz to 20 kHz 0.33%
B
OM
Maximum output power
bandwidth
Gain = 8 dB, THD = 2% 20 kHz
Supple ripple rejection ratio
f 1 kHz
C047F
BTL mode 46
dB
Supple ripple rejection ratio f = 1 kHz,
C
(BYP)
= 0.47 µF
SE mode 60
dB
V
Noise output voltage
C047F
f 20Hzto20kHz
BTL mode 85
V
V
n
Noise output voltage
C
(BYP)
= 0.47 µF,
f = 20 Hz to 20 kHz
SE mode 34
µV
RMS
NOTE 1: Output power is measured at the output terminals of the device at f = 1 kHz.