10

100

1000

10000

100000

FREQUENCY (Hz)

0.001

0.01

0.1

1

10

100

10

100

1000

10000

100000

FREQUENCY (Hz)

0.001

0.01

0.1

1

10

100

10

100

1000

10000

100000

FREQUENCY (Hz)

0.001

0.01

0.1

1

10

100

0.001

0.01

0.1

1

10

100

10

100

1000

10000

100000

FREQUENCY (Hz)

0.001

0.01

0.1

1

10

OUTPUT POWER (W)

VDD = 5V

VDD = 3.6V

VDD = 3.0V

0.01

0.1

1

10

100

0.001

0.01

0.1

1

10

OUTPUT POWER (W)

VDD = 5V

VDD = 3.6V

0.01

0.1

1

10

100

VDD = 3.0V

LM4675, LM4675SDBD, LM4675TLBD

SNAS353C – AUGUST 2006 – REVISED MAY 2013

www.ti.com

Typical Performance Characteristics

The performance graphs were taken using the Audio Precision AUX-0025 Switching Amplifier measurement Filter in series

with the LC filter on the demo board.

THD + N vs Output Power

THD + N vs Output Power

f = 1kHz, RL = 8Ω

f = 1kHz, RL = 4Ω

Figure 5.

Figure 6.

THD + N vs Frequency

THD + N vs Frequency

VDD = 2.5V, POUT = 100mW, RL = 8Ω

VDD = 3.6V, POUT = 150mW, RL = 8Ω

Figure 7.

Figure 8.

THD + N vs Frequency

THD + N vs Frequency

VDD = 5V, POUT = 200mW, RL = 8Ω

VDD = 2.5V, POUT = 100mW, RL = 4Ω

Figure 9.

Figure 10.

6

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