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NTE1871

Integrated Circuit Module – Dual AF Power Amplifier, 50W/Ch, Dual Power Supplies

NTE Electronics 

NTE1871

Integrated Circuit

Module – Dual AF Power Amplifier, 50W/Ch,

Dual Power Supplies

Features:

D Built–In Muting Circuit to Cut–Off Pop Noise

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

Maximum Supply Voltage, VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±52.5V

Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C

Operating Case Temperature, TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C

Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +125°C

Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8°C/W

Availabe Time for Lead Shorted (VCC = ±35V, RL = 8Ω, f = 50MHz, PO = 50W), ts . . . . . . . . . . 2sec

Recommended Operating Conditions: (TA = +25°C unless otherwise specified)

Recommended Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35V

Load Resistance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Ω

Electrical Characteristics: (TA = +25°C, VCC = ±35V, RL = 8Ω, Rg = 600Ω, VG = 40dB,

RL: Non–Inductive Load unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Quiescent Current

ICCO VCC = ±42V

20 40 100 mA

Output Power

Total Harmonic Distortion

PO (1) THD = 0.4%, f = 20Hz to 20kHz 50 – – W

PO (2) VCC = ±31V, THD = 1.0%,

RL = 4Ω, f = 1kHz

55 – – W

THD PO = 1W, f = 1kHz

– – 0.3 %

Frequency Characteristic

Input Resistance

Output Noise Voltage

fL, fH

ri

VNO

PO = 1W, +0 , –3dB

PO = 1W, f = 1kHz

VCC = ±42V, Rg = 10kΩ

20 to 50k

– 55 –

– – 1.2

Hz

kΩ

mVrms

Middle Point Voltage

VN VCC = ±42V

–70 0 +70 mV

Muting Voltage

VM

–2 –5 –10 V

Note 1. For power supply at the time of test, use a constant–voltage power supply unless otherwise

specified.

Note 2. The output noise voltage is represented by the peak value on RMS scale (VTVM) of average

value indicating type. For AC power supply, use an AC stabilized power supply (50Hz) to

eliminate the effect of flicker noise in AC primary line.

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