NTE NTE7040 Datasheet

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, P

0.04% Typ (±B1 = ±22V, RL = 8Ω, f = 20Hz to 20kHz, P

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, +B
Negative Supply Voltage (Note 1), –B
Output Current, I
Input Voltage, V
Power Dissipation (TC = +60°C), P
Junction Temperature, T
Operating Temperature Range, T
Storage Temperature Range, T

O(peak)

i(peak)

T

J

opr

stg

Thermal Resistance, Junction–to–Case, R

2

1

thJC

= 2W)

out

= 2W)

out

30V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–30V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±10V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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 Symbol Test Conditions Min Typ Max Unit

Quiescent Current +I

+I

–I
Output Offset Voltage ∆V
Input Resistance R
Voltage Gain (Closed Loop) G
Voltage Gain (Open Loop) G
Output Power P

V(OL)

O1

P

O2

Total Harmonic Distortion THD f = 20kHz, P
Output Noise Voltage V
Supply Voltage Rejection Ratio SVR Rg = 5.1kΩ, f

Vin = 0 between +B1 and Pin5 20 60 120 mA

Q1
Q2
Q1

Vin = 0, between Pin3 and GND – 0 ±0.1 V

O

f = 1kHz, R

in

f = 1kHz, R

V

f = 1kHz, R
f = 20kHz,

Note 2

Rg = 5.1kΩ, BW = 20Hz to 20kHz – 0.35 0.50 mV

n

between +B2 and Pin6 – – 22 mA
between –B1 and Pin1 2 – – 152 mA

= 56kΩ – 55 – kΩ

102

= 680Ω, R

103

= 0 – 88 – dB

103

= 56kΩ – 38 – dB

104

THD = 0.5%, RL = 8Ω 15 18 – W
THD = 0.7%, RL = 4Ω 15 18 – W

= 2W – 0.04 0.20 %

out

= 100Hz (at Pin12) 52 60 – dB

ripple

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
Input

9

Compensation

8
7

G
N
D

Compensation

6

Muting Input

5

V

CC

4

N.C.

3

Output

2

N.C.
N.C.1