TPA721

700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER

SLOS231B – NOVEMBER 1998 – REVISED MARCH 2000

3

POST OFFICE BOX 655303

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.

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.

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

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.