1390

NTE1390 & NTE1391
Integrated Circuit
Audio Power Amplifier, 12W
for Car Radio or Car Stereo
Features:
D High Gain: 51dB Typ., HIgh Power Output: 12W Typ.
D Low Number of External Components Required
D Low Noise During Power ON/OFF Operation
D Soft Tonal Quality in Saturated Power Output
D Low Distortion Over Low to High Audio Frequency Range
D Low Residual Noise: Rg = 0
D Built–In Audio Muting Circuits: AC Mute & DC Mute
D Built–In Protection Circuits:
Thermal
Overvoltage and Surge Voltage
Load Short–Circuit Current Limiting
Output Pins DC Short–Circuit
D NTE1391 is Mirror Image Pinout of NTE1390
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage, VCCmax
Quiescent (30sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
With Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Supply Current, I10peak
Instantaneous Value Duty ≤ 5%, Pulse Width ≤ 1ms Flow–In Only . . . . . . . . . . . . . . . . . 4.5A
Output Current, I7, I9peak
Instantaneous Value Duty ≤ 5%, Pulse Width ≤ 1ms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5A
Surge Supply Voltage (t ≤ 0.2sec), Vsurge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V
Allowable Power Dissipation (TC = +75°C), PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25W
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3°C/W
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Recommended Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.2V
Load Resistance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Ω to 8Ω
Electrical Characteristics: (TA = +25°C, VCC = 13.2V, RL = 4Ω, f = 1kHz, Rg = 600Ω, with
100 x 100 x 1.5mm3 Al Heat Sink unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
–
65
120
mA
Quiescent Current
ICCO
Voltage Gain
VG
Closed Loop
49
51
53
dB
Output Power
PO
THD = 10%
10
12
–
W
PO = 1W
–
0.1
1.0
%
21
30
–
kΩ
Total Harmonic Distortion
THD
Input Resistance
ri
Output Noise Voltage
VNO 1
Rg = 0, f = 20Hz to 20MHz,
Band Pass Filter
–
0.4
1.0
mV
VNO 2
Rg = 10kΩ, f = 20Hz to 20MHz,
Band Pass Filter
–
0.6
2.0
mV
–300
–
+300
mV
–
38
–
dB
Output Offset Voltage
Voff
Muting Suppression (AC, Note 1)
ATT
vo = 0dBm, VM = 9V
Note 1. For DC muting, ATT = ∞.
Pin Connection Diagram
NTE1390
(Front View)
NTE1391
(Front View)
10 VCC
10 AC Audio Muting
9 Output 1
9 Input
8 Power Amp GND
8 Preamp GND
7 Output 2
7 NF 1
6 DC Audio Muting
6 NF 2
5 NF 2
5 DC Audio Muting
4
4 Output 2
NF 1
3 Preamp GND
3 Power Amp GND
2 Input
2 Output 1
1 AC Audio Muting
1 VCC
1.062 (27.0)
.788 (20.0)
.157 (4.0)
.156 (3.95) R
.448
(11.4)
1
10
.740
(18.78)
.100 (2.54)
.016 (0.40)
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