NTE NTE1476 Datasheet

NTE1476

Integrated Circuit

Audio Power Amplifier, 1.4W

Description:

The NTE1476 is an audio power amplifier in a 10–Lead SIP type package designed for use as a power
amplifier in portable cassette tape recorder applications.

Features:

D Recommended Supply Voltage: VCC = 7.5V, 9.0V
D Output Power:

P

= 1.4W (Typ) at VCC = 7.5V, RL = 4Ω

OUT

P

= 2.0W (Typ) at VCC = 9.0V, RL = 4Ω THD = 10%

OUT

D Minimum Operating Voltage: VCC = 5.0V
D Low Quiescent Current
D Excellent Ripple Rejection
D Built in Turn–On Muting Circuit

Absolute Maximum Ratings: (TA = +25°C)

Supply Voltage, VCC 14V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Current (Peak), I

O(peak)

Power Dissipation, PD 5.0W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Temperature Range, T
Storage Temperature Range, T

1.8A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

opr

–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

Electrical Characteristics: (TA = +25°C, RL = 4Ω, Rg = 600Ω, Rf = 150Ω, f = 1kHz unless

otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Quiescent Current I

Output Power P

CCQ

OUT

VCC = 5V 55 – – mA
VCC = 9V 7 – 30 mA
VCC = 14V – – 35 mA
THD = 10% VCC = 5V – 0.65 – W

VCC = 7.5V – 1.4 – W
VCC = 9V 1.5 2.0 – W

Electrical Characteristics (Cont’d): (TA = +25°C, RL = 4Ω, Rg = 600Ω, Rf = 150Ω, f = 1kHz

unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Total Harmonic Distortion THD P

Open Loop Voltage Gain G
Closed Loop Voltage Gain G
Input Resistance R
Output Noise Voltage V

VO

V

IN

NO

= 100mW VCC = 7.5V – 0.35 – %

OUT

VCC = 9V – 0.35 1.0 %

VCC = 9V, Rf = 0, VIN = 0.245mV

rms

VCC = 9V, Rf = 150Ω, VIN = 3.9mV
VCC = 9V, V

OUT

= 1V

rms

rms

– 72 – dB
– 46 – dB

25 30 – kΩ

VCC = 9V, Rg =10kΩ, BW = 50Hz to 20kHz – – 1.0 mV

Pin Connection Diagram

(Front View)

Output

10

GND

9

50pf to Pin7

8
7 50pf to Pin8

Feedback

6

Input Low

5
4

Input High

.276

(7.0)

.433

(11.0)

.079
(2.0)

.217 (5.5)

Bypass

3

Bypass

2
1

V

CC

1.050 (26.67) Max
.867 (22.0)

.128 (3.2) Dia

110

.100 (2.54)

.900 (22.8)