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NTE1117
Rf = 120Ω
Integrated Circuit
Audio Power Amp, 2 Watt
Description:
The NTE1117 is a monolithic integrated audio amplifier in a 14−Lead DIP type plastic package designed for use as a low frequency class B amplifier with a wide range of supply voltage of 3V to 16V.
Features:
D Minimum Working Voltage of 3V
D Low Quiescent Current
D Low Number of External Components
D Good Ripple Rejection
D No Cross−Over Distortion
D Output Power:
PO = 2W at 12V − 8Ω
PO = 1.6W at 9V − 4Ω
PO = 1.2W at 9V − 8Ω
Absolute Maximum Ratings:
Supply Votlage, V
Output Peak Current, I
Power Dissipation (TA = +50°C), P
Operating Junction Temperature Range, T
Storage Temperature Range, T
S
O
tot
J
stg
Thermal Resistance, Junction−to−Ambient, R
−40° to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−40° to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
thJA
16V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.25W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
80°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Supply Voltage V
Quiescent Output Voltage (Pin12) V
Quiescent Drain Current I
Bias Current (Pin7) I
Output Power P
S
VS = 9V 4 4.5 5 V
O
VS = 9V − 4 − mA
d
VS = 9V − 0.1 − µA
b
d = 10%, f = 1kHZ,
O
VS = 12V, RL = 8Ω − 2 − W
VS = 9V, RL = 4Ω − 1.6 − W
VS = 9V, RL = 8Ω − 1.2 − W
VS = 6V, RL = 4Ω − 0.75 − W
VS = 3.5V, RL = 4Ω − 0.22 − W
3 − 16 V
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Electrical Characteristics (Cont’d): (TA = +25°C unless otherwise specified)
Input Sensitivity
V
= 1.2W, VS = 9V
Rf = 33Ω
16−mV
f = 1kH
RL = 8Ω
Rf = 120Ω
60−mV
Input Sensitivity
V
= 50W, VS = 9V
Rf = 33Ω
3.5−mV
f = 1kH
RL = 8Ω
Rf = 120Ω
12−mV
Rf = 120Ω
f = 1kH
RL = 8Ω
RL = 8Ω
Parameter Symbol Test Conditions Min Typ Max Unit
i(rms)PO
i(rms)PO
Input Resistance R
Frequency Response (−3dB) B VS = 9V, RL = 8Ω,
Distortion d PO = 500mW, VS = 9V,
Voltage Gain (Open Loop) G
Voltage Gain (Closed Loop) G
Input Noise Voltage e
Input Noise Current i
Signal−to−Noise Ratio S + NNVS = 9V, PO = 1.2W, Rf = 120Ω, R1 = 100KΩ,
i
VS = 9V, f = 1kHZ, RL = 8Ω − 75 − dB
V
VS = 9V, f = 1kH
V
VS = 9V, B = 22HZ to 22KH
N
N
B = 22HZ to 22KH
,
Z
,
Z
,
Z
,
,
CB = 680pF 25 to 7000 H
CB = 220pF 25 to 20000 H
Rf = 33Ω − 0.8 − %
Rf = 120Ω − 0.4 − %
Z,
Z
Rf = 33Ω − 45 − dB
Rf = 120Ω − 34 − dB
Z
−
−
−
−
−
−
−
−
− 5 − MΩ
− 3 − µV
− 0.4 − nA
− 70 − dB
−
−
−
−
Z
Z
Supply Voltage Rejection SVR
Bootstrap
Ripple Rejection
N.C.
Compensation
VS = 9V, RL = 8Ω, Rf = 120Ω,
f(ripple) = 100Hz, C6 = 50µF
Pin Connection Diagram
1
2
3
4
5Feedback
6N.C.
7Input
14
13
12
11
10 GND
9 N.C.
8 GND (Substrate)
V
CC
Compensation
Output
N.C.
− 42 − dB
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14 8
17
.785 (19.95) Max
.100 (2.45)
.600 (15.24)
.300 (7.62)
.200 (5.08)
Max
.099 (2.5) Min
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