NTE990 查看數據表（PDF） - NTE Electronics

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NTE990

Integrated Circuit Dual Audio Power Amplifier

NTE Electronics 

Electrical Characteristics: (VS = 20V, TA = +25°C, RL = 8Ω, AV = 50 (34 dB) unless otherwise

specified)

Parameter

Test Conditions

Min Typ Max Unit

Total Supply Current

Output Power

PO= 0W

THD = 10%

–

25 50 mA

2.0 –

– W/Ch

Total Harmonic Distortion

f = 1kHz, VS = 14V

PO = 50mW/Ch

– 0.075 – %

PO = 500mW/Ch

– 0.045 – %

PO = 1W/Ch

– 0.055 – %

Output Swing

RL = 8Ω

– VS –6 – VP–P

Channel Separation

CF = 50µF, CIN = 0.1µF,

VS = 20V, VO = 4Vrms

–50 –70

–

dB

f = 1kHz, Output Referred VS = 7V, VO = 0.5Vrms

– –60 – dB

Power Supply Rejection Ratio CF = 50µF, CIN = 0.1µF,

VS = 20V, Vripple = 1Vrms –50 –65

–

dB

f = 120Hz, Output Referred VS = 7V, Vripple = 0.5Vrms –

–40

–

dB

Equivalent Noise Input

RS = 0, CIN = 0.1µF, BW = 20Hz to 20kHz,

Output Noise Wideband

– 2.5 – µA

Open Loop Gain

Input Offset Voltage

RS = 0, CIN = 0.1µF, AV = 200

RS = 0, f = 100kHz, RL = 8Ω

– 0.8 – mV

–

70

– dB

–

15

– mV

Input Bias Current

–

50

– nA

Input Impedance

Open Loop

–

4

– MΩ

DC Output Level

Slew Rate

VS = 20V

9

10 11 V

– 2.0 – V/µs

Power Bandwidth

–

65

– kHz

Current Limit

–

1.0 –

A

Note 1 For operation at ambient temperature greater than +25°C, the NTE990 must be derated

based on a maximum 150°C junction temperature using a thermal resistance which de-

pends upon device mounting techniques..

Pin Connection Diagram

Bias 1

Output 1 2

GND 3

GND 4

GND 5

Input 1 6

Feedback 1 7

14 VCC

13 Output 2

12 GND

11 GND

10 GND

9 Input 2

8 Feedback 2

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