LM4880-D08-T datasheet(9/11 Pages) UTC

Part #	LM4880-D08-T

Description	DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE

Download	11 Pages

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Manufacturer	UTC [Unisonic Technologies]

Direct Link	http://www.utc-ic.com

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9 / 11 page

LM4880

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

9 of 11

www.unisonic.com.tw

QW-R502-033,B

TYPICAL CHARACTERISTICS(Cont.)

20

-140.0

0.0

Frequency (Hz)

100

10k 20k

Channel Separation

Channel B to A

1k

-120.0

-100.0

-80.00

-60.00

-40.00

-20.00

Channel A to B

20

100.0

0.0

Frequency (Hz)

100

10k 20k

Output Attenuatin in Shutdown Mode

1k

90.00

80.00

70.00

60.00

40.00

20.00

50.00

30.00

10.00

Ri=RF=20KΩ

20

Frequency (Hz)

100

10k 20k

Noise Floor

1k

1m

Power Supply Rejection Ratio

10

100

1k

10k

0

10

20

30

40

50

60

70

100k

Frequency (Hz)

Open Loop Frequency Response

10

100

1k

10k 100k

1M

0

20

40

60

80

100

10M

Frequency (Hz)

100M

0

45

90

135

180

22

5

Supply Current vs Supply Voltage

2.5

3.0

3.5

4.0

4.5

5.0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Supply Voltage (V)

5.5

4.5

5.0

0dB=1.3Vrms

RF =20kΩ

100μ

10 μ

1μ

BW<22kHz

CB

=1

.0μ

F I

I W

0.1

μ

F

CB=0.1μF

VPIN3=2.5V(FORCED)

C

B=

1.0

μF

II 0

.1

μ

F

VPIN5 =0V

RL=

R=RF=10kΩ

i

R =10k Ω

i

0dB=200mW

GV=1

V DD =5.0V

L

R=8Ω

VPIN3=5.0V

POUT =200mW

RL=8Ω

CB=1.0μF

RL=8Ω

GV=1

Gain

Phase

VRIPPLE=200mVrms

0dB=200mVrms

VDD =5.0V

R=8Ω

L

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