NTE1818
Integrated Circuit
Module, AF PO, 25W/Ch,
Dual Power Supply
Features:
D
Muting circuit to cut off pop noise
D
Greatly reduced heat sink due to case temperature +125
C guaranteed
Absolute Maximum Ratings: (T
A
= +25
C unless otherwise specified)
Maximum Supply Voltage, V
CC max
39V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, JunctiontoCase, R
thJC
2.6
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Junction Temperature, T
J
150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Case Temperature, T
C
125
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
30
to +125
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Available Time for Load Shorted (V
CC
=
26V, R
L
= 8
, f = 50Hz, P
O
= 25W), t
s
2sec
. . . . . . . . . . .
Recommended Operating Conditions: (T
A
= +25
C unless otherwise specified)
Recommended Operating Voltage, V
CC
26V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Resistance, R
L
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Characteristics: (T
A
= +25
C, V
CC
=
26V, R
L
= 8
, R
g
= 600
, VG = 40dB,
R
L
: noninductive load, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Quiescent Current
I
CCO
V
CC
=
31V
20
40
100
mA
Output Power
P
O(1)
THD 0.4%, f = 20Hz
20kHz
25
W
P
O(2)
V
CC
=
22V, THD = 1.0%
25
W
Total Harmonic Distortion
THD
P
O
= 1.0W, f = 1kHz
0.3
%
Frequency Response
f
L
, f
H
P
O
= 1.0W, 3dB
20 to 50k
Hz
Input Resistance
ri
P
O
= 1.0W, f = 1kHz
55
k
Output Noise Voltage
V
NO
V
CC
=
31V. R
g
= 10k
1.2
mV
rms
Midpoint Voltage
V
N
V
CC
=
31V
70
0
70
mV
Muting Voltage
V
M
2
5
10
V
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