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NTE1477

Integrated Circuit 2 Channel Amplifier for Headphone Use

NTE Electronics 

NTE1477

Integrated Circuit

2 Channel Amplifier for Headphone Use

Description:

The NTE1477 is a integrated circuit in a 14–Lead DIP type package suitable for use as a headphone

driving amplifier in the output amplifier of a tape deck or a tuner.

Features:

D Wide Operating Voltage Range

D Small Pop Noise by Means of Emitter Feedback

D Dual Amplifier Involved–Few Peripheral Parts

D Small Output Noise Voltage

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)

Maximum Supply Voltage, VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22V

Maximum Supply Current (only Pin2: flow–in; Pin7, 8: flow–out), ICP . . . . . . . . . . . . . . . . . . . . . 0.5A

Allowable Power Dissipation, PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.05W

Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C

Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C

Recommended Operating Condition: (TA = 25°±C)

Recommended Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V

Load Resistance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Ω or 200Ω

Operating Characteristics: (TA = +25°C, VCC = 14V, RL = 8Ω f = 1kHz, Rg = 600Ω unless

otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Quiescent Current

Voltage Gain

Output Voltage

Total Harmonic Distortion

Input Resistance

Output Noise Voltage

Channel Separation

Gain Difference

ICCO

VG

VO

THD

ri

VNO

VO = 77.5mV

THD = 10%

VO = 0.1V

VO = 0.2V

Rg = 1kΩ, filter: 15 to 30kHz

Rg = 1kΩ

6 8 15 mA

7 9 11 dB

0.58 0.68 – V

– 0.5 1.0 %

20k 30k 40k Ω

– 6 18 µV

–50 –68 – dB

– – 1 dB

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