LY8209

Rev. 1.2

3.3W/CH Stereo Class D 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

10

®

Supply Current vs. Output Power (RL=4Ω)

Supply Current vs. Output Power (RL=8Ω)

SUPPLY CURRENT vs OUTPUT POWER

0

200

400

600

800

1000

1200

1400

0

0.2

0.4

0.8

1.2

1.6

2

2.4

Po-Output Power-W RL=4Ω

2.5V(D)

3.7V(D)

5V(D)

SUPPLY CURRENT vs OUTPUT POWER

0

100

200

300

400

500

600

700

800

900

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

Po - Output Power - W RL=8Ω

2.5V(D)

3.7V(D)

5V(D)

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

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

Output Power vs Load Resistance

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

4.50

4Ω

8Ω

12Ω

16Ω

20Ω

24Ω

28Ω

32Ω

Load Resistance

2.5V

3.7V

5V

6V

4.2V

5.5V

Output Power vs Load Resistance

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4Ω

8Ω

12Ω

16Ω

20Ω

24Ω

28Ω

32Ω

Load Resistance

2.5V

3.7V

5V

6V

4.2V

5.5V

Output Power vs. VDD (RL=8Ohm)

Output Power vs. VDD (RL=4Ohm)

OUTPUT POWER vs. SUPPLY VOLTAGE(8Ω)

0

0.4

0.8

1.2

1.6

2

2.4

2.8

2.5V

3.7V

4.2V

5V

5.5V

6V

VDD-Supply Voltage-V (RL=8Ohm, f=1KHz, Av=11 V/V)

THD+N=10%

THD+N=1%

OUTPUT POWER vs. SUPPLY VOLTAGE(4Ω)

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

2.5V

3.7V

4.2V

5V

5.5V

6V

VDD-Supply Voltage-V (RL=4Ohm, f=1KHz, Av=11 V/V)

THD+N=10%

THD+N=1%