7040

NTE7040
Integrated Circuit
Audio Power Amplifier, 20W
Features:
D High Output Power:
20W Typ (±B1 = ±22V, RL = 8Ω, f = 20Hz to 20kHz, THD = 1%)
18W Typ (±B1 = ±22V, RL = 8Ω, f = 20Hz to 20kHz, THD = 0.5%)
where: ±B1: Supply Voltage, RL: Load Frequency, f: Frequency,
THD: Total Harmonic Distortion, ±B2 = 25V constant
D Very Low Harmonic and Crossover Distortion:
0.02% Typ (±B1 = ±22V, RL = 8Ω, f = 1kHz, Pout = 2W)
0.04% Typ (±B1 = ±22V, RL = 8Ω, f = 20Hz to 20kHz, Pout = 2W)
D Wide Frequency Range: From 5Hz to 120kHz (at –1dB frequency response)
D Thermal Shut–down Circuit Included
D Muting Circuit Included
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Positive Supply Voltage (Note 1), +B1, +B2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V
Negative Supply Voltage (Note 1), –B1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30V
Output Current, IO(peak) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5A
Input Voltage, Vi(peak) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10V
Power Dissipation (TC = +60°C), PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30W
Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5°C/W
Note 1. Standard operating voltages are as follows: +B2 = +25V, ±B1 = ±22V, ±19V
Electrical Characteristics: (TA = +25°C, ±B1 = ±25V, +B2 = 25V, RL = 8Ω, Rg = 600Ω unless
otherwise specified)
Parameter
Quiescent Current
Symbol
Min
Typ
Max
Unit
between +B1 and Pin5
20
60
120
mA
+IQ2
between +B2 and Pin6
–
–
22
mA
–IQ1
between –B1 and Pin12
–
–
152
mA
+IQ1
Test Conditions
Vin = 0
Output Offset Voltage
∆VO
Vin = 0, between Pin3 and GND
–
0
±0.1
V
Input Resistance
Rin
f = 1kHz, R102 = 56kΩ
–
55
–
kΩ
Voltage Gain (Closed Loop)
GV
f = 1kHz, R103 = 680Ω, R104 = 56kΩ
–
38
–
dB
f = 1kHz, R103 = 0
–
88
–
dB
15
18
–
W
PO2
f = 20kHz, THD = 0.5%, RL = 8Ω
Note 2
THD = 0.7%, RL = 4Ω
15
18
–
W
THD
f = 20kHz, Pout = 2W
–
0.04 0.20
%
Rg = 5.1kΩ, BW = 20Hz to 20kHz
–
0.35 0.50
mV
Rg = 5.1kΩ, fripple = 100Hz (at Pin12)
52
Voltage Gain (Open Loop)
Output Power
Total Harmonic Distortion
Output Noise Voltage
Supply Voltage Rejection Ratio
GV(OL)
PO1
Vn
SVR
60
Note 2. Standard test conditions are as follows: PO1: ±B1 = ±22V, PO2: ±B1 = ±19V
Pin Connection Diagram
(Front View)
12 GND
11 Ripple Rejection
10 Input
9 Input
8 Compensation
G
N
D
7 Compensation
6 Muting Input
5 VCC
4 N.C.
3 Output
2 N.C.
1 N.C.
–
dB
1.230 (31.2)
.059 (1.5)
Max
1.100 (28.0)
.787 (20.0)
.161 (4.1) Dia
.142 (3.6) Dia
.630
(16.0)
Max
1
12
.100 (2.54)
.276 (7.0)
Min
.150 (3.81)
Max
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