NTE NTE7102

NTE7102
Integrated Circuit
Dual Audio Power Amplifier,
5.5W/Ch (20W BTL)
Description:
The NTE7102 is a class B dual audio power amplifier in a 14–Lead DIP type package designed for
use in a music center and a radio cassette player.
Features:
D High Output Power:
D
D
D
D
D
D
D
D
D
20W Typ @ VCC = 18V, RL = 8Ω (BTL)
5.5W/Ch Typ @ VCC = 18V, RL = 8Ω
7W/Ch Typ @ VCC = 15V, RL = 4Ω
5.7W/Ch Typ @ VCC = 12V, RL = 3Ω
4.6W/Ch Typ @ VCC = 12V, RL = 4Ω
Wide Operating Voltage Range: VCC = 6 to 20V
Low Quiescent Current: ICC = 23mA Typ @ VCC = 15V
Low Noise: NL = 0.25mVrms Typ
High Supply Voltage Rejection: SVR = 55dB Typ
No Shock Noise at Power Supply Switch ON and OFF
Soft Clipping Wave Form
Built–In Thermal Shutdown Circuit
Low Thermal Resistance: RΘJC = 3°C/W
Few External Components
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage,
No Signal, VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V
Operating, VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
Powewr Dissipation (100 x 100 x 2mm Al Heat Sink), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14W
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Parameter
Supply Voltage
Symbol Min
Typ
Max
12.15 20.0
Unit
VCC
6.0
V
Load Impedance (Dual)
RL
3
4
8
Ω
Load Impedance (BTL)
RL
–
–
8
Ω
Voltage Gain
Aν
38
48
–
dB
Electrical Characteristics: (VCC = 15V, RL = 4Ω, f = 1kHz, TA = +25°C, 100 x 100 x 2mm Al
panel Heat Sink unless otherwise specified)
Parameter
Symbol
Circuit Current
ICC
Voltage Gain
Aν
Output Power
PO
Total Harmonic Distortion
THD
Test Conditions
Min
Typ
Max
Unit
–
23
36
mA
46
48
50
dB
VCC = 12V, RL = 4Ω
–
4.6
–
W
VCC = 12V, RL = 3Ω
–
5.7
–
W
VCC = 15V, RL = 4Ω
6.0
7.0
–
W
VCC = 18V, RL = 8Ω
–
5.5
–
W
THD = 10%, BTL, VCC = 18V, RL = 4Ω
–
20
–
W
PO = 1W
–
0.2
1.0
%
No Signal
THD = 10%
Output Noise Voltage
NL
DIN AUDIO, RG = 0
–
0.26
0.6
mVrms
Crosstalk
CT
PO = 2W, other Ch, RG = 0
45
55
–
dB
Channel Balance
Ch. B
PO = 4W
–1
0
+1
dB
Ripple Rejection
SVR
RG = 0, f = 100Hz, V = 0.3mVrms
45
55
–
dB
Input Impedance
Zin
20
30
–
kΩ
Pin Connection Diagram
(Front View)
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND (Output)
Output 2
VCC
Compensation 2
Bootstrap 2
NFB 2
Input 2
Filter
GND (Input)
NFB 1
Input 1
Compensation 1
Bootstrap 1
Output 1
1.000 (25.4) Max
.843 (21.4)
.472 (12.0)
.138 (3.5)
.532
(13.5)
Max
.142 (3.6) Dia.
.480
(12.2)
1
.607
(15.4)
Max
14
.134
(3.4)
.067 (1.7) Max
.200 (5.08)
.138 (3.5)