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TPA721DGN Datasheet(PDF) 3 Page - Texas Instruments

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No. de pieza TPA721DGN
Descripción Electrónicos  700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPA721DGN Datasheet(HTML) 3 Page - Texas Instruments

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TPA721
700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER
SLOS231B – NOVEMBER 1998 – REVISED MARCH 2000
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, VDD = 3.3 V, TA = 25°C (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOO
Output offset voltage (measured differentially)
See Note 1
20
mV
PSRR
Power supply rejection ratio
VDD = 3.2 V to 3.4 V
85
dB
IDD
Supply current
BTL mode
1.25
2.5
mA
IDD(SD) Supply current, shutdown mode (see Figure 4)
7
50
µA
NOTE 1: At 3 V < VDD < 5 V the dc output voltage is approximately VDD/2.
operating characteristics, VDD = 3.3 V, TA = 25°C, RL = 8 Ω
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PO
Output power, see Note 2
THD = 0.5%,
See Figure 9
250
mW
THD + N
Total harmonic distortion plus noise
PO = 250 mW,
f = 200 Hz to 4 kHz, See Figure 7
0.55%
BOM
Maximum output power bandwidth
Gain = 2,
THD = 2%,
See Figure 7
20
kHz
B1
Unity-gain bandwidth
Open Loop,
See Figure 15
1.4
MHz
kSVR
Supply ripple rejection ratio
f = 1 kHz,
CB = 1 µF,
See Figure 2
79
dB
Vn
Noise output voltage
Gain = 1,
CB = 0.1 µF,
See Figure 19
17
µV(rms)
NOTE 2: Output power is measured at the output terminals of the device at f = 1 kHz.
electrical characteristics at specified free-air temperature, VDD = 5 V, TA = 25°C (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOO
Output offset voltage (measured differentially)
20
mV
PSRR
Power supply rejection ratio
VDD = 4.9 V to 5.1 V
78
dB
IDD
Supply current
1.25
2.5
mA
IDD(SD) Supply current, shutdown mode (see Figure 4)
50
100
µA
operating characteristics, VDD = 5 V, TA = 25°C, RL = 8 Ω
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PO
Output power
THD = 0.5%,
See Figure 13
700†
mW
THD + N
Total harmonic distortion plus noise
PO = 250 mW,
f = 200 Hz to 4 kHz, See Figure 11
0.5%
BOM
Maximum output power bandwidth
Gain = 2,
THD = 2%,
See Figure 11
20
kHz
B1
Unity-gain bandwidth
Open Loop,
See Figure 16
1.4
MHz
kSVR
Supply ripple rejection ratio
f = 1 kHz,
CB = 1 µF,
See Figure 2
80
dB
Vn
Noise output voltage
Gain = 1,
CB = 0.1 µF,
See Figure 20
17
µV(rms)
† The DGN package, properly mounted, can conduct 700 mW RMS power continuously. The D package can only conduct 350 mW RMS power
continuously wtih peaks to 700 mW.


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