TPA0253 Datasheet, PDF (4/7 Pages) Texas Instruments – 1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE

TPA0253
1-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS280B – JANUARY 2000 – REVISED MARCH 2000
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ recommended operating conditions
Supply voltage, VDD
MIN MAX UNIT
2.5 5.5 V
VDD = 3 V
2.7
ST/MN
High-level input voltage, VIH
VDD = 5 V
4.5
V
SHUTDOWN
2
Low-level input voltage, VIL
ST/MN
VDD = 3 V
VDD = 5 V
1.65
2.75 V
ÁÁÁÁ^OpeÁÁ^ratinÁÁ^gfreÁÁ^e-aiÁÁ^rtemÁÁ^peraÁÁ^tureÁÁ^,TAÁÁÁÁÁÁÁÁÁÁÁÁ^SHÁÁ^UTDÁÁ^OWNÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ^–40ÁÁÁÁ^08.58ÁÁÁÁ^°C ÁÁ
electrical characteristics at specified free-air temperature, V_DD = 3 V, T_A = 25°C (unless otherwise
noted)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _|VOO|
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _PSRR
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ |IIH|
ÁÁÁÁÁÁÁÁÁ ^|IIL|
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ^ZI
ÁÁÁÁÁÁÁÁÁ _IDD
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _IDD(SD)
PARAMETER
Output offset voltage (measured differentially)
Power supply rejection ratio
High-level input current
Low-level input current
Input impedance
Supply current
Supply current, shutdown mode
TEST CONDITIONS
VIO = 0.1%,
VDD = 2.9 V to 3.1 V,
VDD = 3.3 V,
VDD = 3.3 V,
Gain = 8 dB
BTL mode
VI = VDD
VI = 0
MIN TYP MAX UNIT
30 mV
65
dB
1 µA
1 µA
50
kΩ
2.7
4 mA
1
10 µA
operating characteristics, V_DD = 3 V, T_A = 25°C, R_L = 4 Ω, f = 1 kHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _PO
Output power, see Note 1
THD = 0.1%,
THD = 0.1%
Gain = 1.9 dB
BTL mode,
SE mode,
Gain = 14 dB
RL = 32 Ω
300
mW
30
THD + N
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _BOM
Total harmonic distortion plus noise
Maximum output power bandwidth
Supple ripple rejection ratio
PO = 250 mW, f = 20 Hz to 20 kHz
Gain = 1.9 dB, THD = 2%
f = 1 kHz,
CB = 0.47 µF
BTL mode
SE mode
0.2%
20
kHz
46
dB
68
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _Vn
Noise output voltage
BTL mode
CB = 0.47 µF, f = 20 Hz to 20 kHz
SE mode
83
33
µVRMS
NOTE 1: Output power is measured at the output terminals of the device at f = 1 kHz.
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