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OPERATING CHARACTERISTICS

PARAMETER MEASUREMENT INFORMATION

Audio

Input

Bias

Control

6

5

7

1

2

4

BYPASS

IN–

SHUTDOWN

GND

3

IN+

–

+

–

+

TPA721

SLOS231E – NOVEMBER 1998 – REVISED JUNE 2004

V

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output power

THD = 0.5%,

See Figure 13

mW

THD + N

Total harmonic distortion plus noise

f = 200 Hz to 4 kHz, See Figure 11

0.5%

Maximum output power bandwidth

Gain = 2,

THD = 2%, See Figure 11

20

kHz

Unity-gain bandwidth

Open loop,

See Figure 16

1.4

MHz

Supply ripple rejection ratio

f = 1 kHz,

80

dB

Noise output voltage

Gain = 1,

17

µV(rms)

(1)

The DGN package, properly mounted, can conduct 700-mW RMS power continuously. The D package can only conduct 350-mW RMS

power continuously with peaks to 700 mW.

Figure 1. BTL Mode Test Circuit

4