NTE NTE1871 Datasheet

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:

Maximum Supply Voltage, V
Junction Temperature, T

J

Operating Case Temperature, T
Storage Temperature Range, T
Thermal Resistance, Junction–to–Case, R
Availabe Time for Lead Shorted (V

(TA = +25°C unless otherwise specified)

max ±52.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CC

C

stg

thJC

= ±35V, RL = 8Ω, f = 50MHz, PO = 50W), t

CC

–30° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

s

+150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.8°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Recommended Supply Voltage, V

Load Resistance, R

L

CC

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

R

: Non–Inductive Load unless otherwise specified)

L

Parameter Symbol Test Conditions Min Typ Max Unit

Quiescent Current I
Output Power PO (1) THD = 0.4%, f = 20Hz to 20kHz 50 – – W

Total Harmonic Distortion THD PO = 1W, f = 1kHz – – 0.3 %

CCO

PO (2) VCC = ±31V, THD = 1.0%,

VCC = ±42V 20 40 100 mA

55 – – W

= 4Ω, f = 1kHz

R

L

2sec. . . . . . . . . .

±35V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Frequency Characteristic fL, f
Input Resistance r
Output Noise Voltage V
Middle Point Voltage V
Muting Voltage V

NO

PO = 1W, +0 , –3dB 20 to 50k Hz

H

PO = 1W, f = 1kHz – 55 – kΩ

i

VCC = ±42V, Rg = 10kΩ – – 1.2 mV

N

M

VCC = ±42V

–70 0 +70 mV

–2 –5 –10 V

rms

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.

Pin Connection Diagram

(Front View)

18

Input 2

17

NFB 2

16

GND

15

Input Bias 2
Power GND 2

14
13 Output 2

12

Bootstrap

11

V

10 Output 1

9

Power GND

8

Mute t Cap

7

Mute Adjust
Mute

6
5

Input Bias 1

4

Feedback
GND 1

3

NFB 1

2
1

Input 1

CC

.141 (3.6)

Dia (2 Holes)

2.520 (64.0)

2.190 (55.6)

.334 (8.5)

1.440
(36.4)

.737

118

(18.7)

1.030
(32.5)

.158 (4.0)

.100 (2.54)

.114 (5.5)1.700 (43.18)