LY8898

Rev. 1.0

3.2 Watt Audio Power Amplifier

5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan

TEL: 886-3-6668838

FAX: 886-3-6668836

9

®

SD Current vs. SD Voltage

Quiescent Current vs. Supply voltage

SHUTDOWN CURRENT vs SHUTDOWN VOLTAGE

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Shutdown Voltage - V

2.5v

3.7V

5v

QUIESCENT CURRENT vs. SUPPLY VOLTAGE

1

2

3

4

5

6

2

2.5

3

3.7

4.2

5

5.5

6

VDD - Supply Voltage(V)

No Load

8Ω

4Ω

3Ω

Load Resistance vs. Output Power (THD+N=10%)

Load Resistance vs. Output Power (THD+N=1%)

Output Power vs Load Resistance

0

0.5

1

1.5

2

2.5

3

3.5

4

3Ω

4Ω

8Ω

12Ω

16Ω

20Ω

24Ω

28Ω

32Ω

Load Resistance

2.5V

3.7V

5V

4.2V

5.5V

Output Power vs Load Resistance

0

0.5

1

1.5

2

2.5

3

3Ω

4Ω

8Ω

12Ω

16Ω

20Ω

24Ω

28Ω

32Ω

Load Resistance

2.5V

3.7V

5V

4.2V

5.5V

SUPPLY CURRENT vs. OUTPUT POWER(RL=3Ω)

0

100

200

300

400

500

600

700

800

900

1000

0

0.2 0.4 0.8

1

1.2 1.8 2.2 2.4 2.6 2.8

3

3.2 3.4

Po-Output Power-W(RL=3Ω)

2.0V

2.5V

3.7V

5.0V

SUPPLY CURRENT vs. OUTPUT POWER(RL=4Ω)

0

100

200

300

400

500

600

700

800

900

0

0.2

0.4

0.8

1

1.2

1.8

2.2

2.4

2.6

2.8

3

3.2

Po-Output Power-W(RL=4Ω)

2.0V

2.5V

3.7V

5.0V