NTE NTE7146

NTE7146
Integrated Circuit
Dual (12W + 12W) Stereo Amplifier w/Muting
Description:
The NTE7146 is a class AB dual audio power amplifier assembled in an 11–Lead Staggered SIP type
package specifically designed for high quality sound applications such as HI–FI music centers and
stereo TV sets.
Features:
D Wide Supply Voltage Range
D High Output Power: 12W + 12W @ VS = 28V, RL = 8Ω, THD = 10%
D Mute facility (Pop Free) with Low Consumption
D AC Short Circuit Protection
D Thermal Overload Protection
Absolute Maximum Ratings:
Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V
Output Peak Current, IO
Repetitive (f > 20Hz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A
Non–Repetitive (t = 100µs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5A
Total Power Dissipation (TC = +70°C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25W
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Maximum Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3°C/W
Electrical Characteristics: (TA = +25°C, VS = 28V, RL = 8Ω, GV = 30dB, f = 1kHz unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max Unit
Supply Voltage
VS
10
–
32
V
Quiescent Output Voltage
VO
–
13.5
–
V
Total Quiescent Current
Iq
–
70
95
mA
Output Power (RMS)
PO
THD = 10%, TA = +85°C
10
12
–
W
THD = 1%
–
9.5
–
W
PO = 1W, f = 1kHz
–
0.02
0.2
%
PO = 0.1W to 8W, f = 100Hz to 10kHz
–
–
0.5
%
Total Harmonic Distortion
THD
Electrical Characteristics (Cont’d): (TA = +25°C, VS = 28V, RL = 8Ω, GV = 30dB, f = 1kHz
unless otherwise specified)
Parameter
Symbol
Crosstalk
CT
Test Conditions
Min
Typ
Max Unit
RS = 10kΩ, f = 1kHz
–
70
–
dB
RS = 10kΩ, f = 10kHz
–
60
–
dB
Input Resistance
RI
100
200
–
kΩ
Low Frequency Roll–Off (–3dB)
fL
–
40
–
Hz
High Frequency Roll–Off (–3dB)
fH
–
80
–
kHz
Total Input Noise Voltage
eN
A Curve; RS = 10kΩ
–
1.5
–
mV
f = 22Hz to 22lHz, RS = 10kΩ
–
3
10
µV
RS = 10kΩ, f = 100Hz, Vr = 0.5V
45
60
–
dB
TJ
–
145
–
°C
Mute Threshold
VTMUTE
1.0
1.6
–
V
Play Threshold
VTPLAY
–
4.5
–
V
Mute Attenuation
ATTAM
70
100
–
dB
Quiescent Current @ Mute
IqMUTE
–
7
10
mA
Supply Voltage Rejection (Ea Channel)
Thermal Shutdown Junction Temperature
SVR
Mute Function
Pin Connection Diagran
(Front View)
11
10
9
8
7
6
5
4
3
2
1
.790 (20.0)
N.C.
Output 1
(+) VS
Output 2
N.C.
GND
Non–Invert Input 2
Invert Input 2
SVR/Muting
Invert Input 1
Non–Invert Input 1
.122 (3.1)
Max
.430
(11.0)
1
11
.066 (1.7)
.700
(17.9)
.100 (2.54)
.570
(14.4)
.100 (2.54)