LN4890 Просмотр технического описания (PDF) - Unspecified

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производитель

LN4890

Low-Cost, Mono/Stereo, 1 W Differential Audio Power Amplifiers

Unspecified 

(VDD = 3V Unless otherwise specified. Limits apply for TA = 25°C.)

LN4890

Parameter

IDD

ISD

VSDIH

VSDIL

VOS

ROUT-GND

PO

TWU

TSD

THD+N

Symbol

Quiescent Power

Supply Current

Shutdown Current

Shutdown Voltage Input High

Shutdown Voltage Input Low

Output Ofsett Voltage

Resistor Output

to GND

Output Power ( 8Ω )

Wake-up time

Thermal Shutdown Temperature

Total Harmonic Distortion+Noise

PSRR

Power Supply Rejection Ratio

Condition

VIN = 0V, Io = 0A, No Load

VIN = 0V, Io = 0A, 8Ω Load

VSHUTDOWN = 0V

THD = 2% (max); f = 1 kHz

8Ω Load

Po = 0.4 Wrms; f = 1kHz

Vripple = 200mV sine p-p

f=217Hz

Vripple = 200mV sine p-p

f=1kHz

Min Typ Max Unit

— 3.5

7

mA

— 4.5

9

mA

— 0.1

2

μA

1.2 —

—

V

— — 0.4

V

—

7

50 mV

7.0 8.5 9.7 kΩ

0.28 0.31 —

W

— 170 220 ms

150 170 190 ℃

— 0.1 —

%

56

45

—

dB

62

(VDD = 2.6V Unless otherwise specified. Limits apply for TA = 25°C.)

Parameter

IDD

ISD

PO

THD+N

PSRR

Symbol

Quiescent Power

Supply Current

Output Power ( 8Ω )

Total Harmonic Distortion+Noise

Power Supply Rejection Ratio

Condition

Min Typ Max Unit

VIN = 0V, Io = 0A, No Load

—

2.6 5.5

mA

VSHUTDOWN = 0V

— 0.1

2

μA

THD = 1% (max);

f = 1 kHz

8Ω Load

4Ω Load

0.2

—

W

0.22

Po = 0.1 Wrms; f = 1kHz

— 0.08 —

%

Vripple = 200mV sine p-p

f=217Hz

Vripple = 200mV sine p-p

f=1kHz

44

—

—

dB

44

Rev.1.0 —Nov. 24, 2011

6

www.natlinear.com

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