NTE NTE7102 Datasheet
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: 20W Typ @ VCC = 18V, RL = 8Ω (BTL)
5.5W/Ch Typ @ VCC = 18V, RL = 8Ω
7W/Ch Typ @ V
5.7W/Ch Typ @ V
4.6W/Ch Typ @ V
D Wide Operating Voltage Range: V
D Low Quiescent Current: I
D Low Noise: N
= 0.25mV
L
= 23mA Typ @ VCC = 15V
CC
Ty p
rms
CC
D High Supply Voltage Rejection: SVR = 55dB Typ
D No Shock Noise at Power Supply Switch ON and OFF
D Soft Clipping Wave Form
D Built–In Thermal Shutdown Circuit
D Low Thermal Resistance: R
= 3°C/W
Θ
JC
D Few External Components
= 15V, RL = 4Ω
CC
= 12V, RL = 3Ω
CC
= 12V, RL = 4Ω
CC
= 6 to 20V
Absolute Maximum Ratings:
(TA = +25°C unless otherwise specified)
Supply Voltage,
No Signal, V
Operating, V
Powewr Dissipation (100 x 100 x 2mm Al Heat Sink), P
Operating Temperature Range, T
Storage Temperature Range, T
Recommended Operating Conditions:
Supply Voltage V
Load Impedance (Dual) R
Load Impedance (BTL) R
Voltage Gain Aν 38 48 – dB
CC1
CC2
D
opr
stg
–20° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–40° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(TA = +25°C unless otherwise specified)
Parameter Symbol Min Typ Max Unit
CC
L
L
6.0 12.15 20.0 V
3 4 8 Ω
– – 8 Ω
28V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 Test Conditions Min Typ Max Unit
Circuit Current I
Voltage Gain Aν 46 48 50 dB
Output Power P
Total Harmonic Distortion THD PO = 1W – 0.2 1.0 %
Output Noise Voltage NL DIN AUDIO, RG = 0 – 0.26 0.6 mV
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 = 0.3mV
Input Impedance Z
CC
No Signal – 23 36 mA
THD = 10% VCC = 12V, RL = 4Ω – 4.6 – W
O
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
rms
in
Pin Connection Diagram
(Front View)
45 55 – dB
20 30 – kΩ
rms
GND (Output)
14
Output 2
13
V
12
CC
11
Compensation 2
10
Bootstrap 2
NFB 2
9
Input 2
8
Filter
7
6
GND (Input)
5
NFB 1
4
Input 1
3
Compensation 1
2
Bootstrap 1
1
Output 1
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