NTE NTE1871

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
Quiescent Current
Output Power
Symbol
Min
Typ
Max
Unit
VCC = ±42V
20
40
100
mA
PO (1)
THD = 0.4%, f = 20Hz to 20kHz
50
–
–
W
PO (2)
VCC = ±31V, THD = 1.0%,
RL = 4Ω, f = 1kHz
55
–
–
W
–
–
0.3
%
ICCO
Test Conditions
Total Harmonic Distortion
THD
PO = 1W, f = 1kHz
Frequency Characteristic
fL, fH
PO = 1W, +0 , –3dB
Input Resistance
ri
Output Noise Voltage
VNO
Middle Point Voltage
VN
Muting Voltage
VM
20 to 50k
Hz
PO = 1W, f = 1kHz
–
55
–
kΩ
VCC = ±42V, Rg = 10kΩ
–
–
1.2
mVrms
–70
0
+70
mV
–2
–5
–10
V
VCC = ±42V
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
14 Power GND 2
13 Output 2
12 Bootstrap
11 VCC
10 Output 1
9 Power GND
8 Mute t Cap
7 Mute Adjust
6 Mute
5 Input Bias 1
4 Feedback
3 GND 1
2 NFB 1
1 Input 1
2.520 (64.0)
.334 (8.5)
2.190 (55.6)
1.440
(36.4)
1
18
.737
(18.7)
1.030
(32.5)
.141 (3.6)
Dia (2 Holes)
.158 (4.0)
.100 (2.54)
1.700 (43.18)
.114 (5.5)