NTE7145 查看數據表（PDF） - NTE Electronics

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NTE7145

Intergrated Circuit 18W BTL x 2 Ch Audio Power Amplifier

NTE Electronics 

Electrical Characteristics: (TA = +25°C, VCC = 13.2V, RL = 4Ω, f = 1kHz, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Quiescent Supply Current

Output Power

ICCQ

POUT

VIN = 0

VCC = 14.4V, THD = 10%

THD = 10%

– 120 250 mA

– 18 –

W

11 15 –

W

Total Harmonic Distortion

Voltage Gain

Output Noise Voltage

Ripple Rejection Ratio

Input Resistance

Output Offset Voltage

Current at Stand–By State

Crosstalk

Pin4 Control Voltage

Pin1 Control Voltage

THD

GV

VNO

RR

RIN

Voffset

ISB

CT

V(SB)

V(MUTE)

POUT = 1W

Rg = 0Ω, BW = 20Hz to 20kHz

fripple = 100Hz, Rg = 600Ω

VIN = 0

Rg = 600Ω, VOUT = 0.775Vrms (0dBm)

Stand–By→OFF (Power→ON)

Mute→ON (Power→OFF)

– 0.04 0.4 %

48 50 52 dB

– 0.3 0.7 mVrms

40 54 – dB

– 30 – kΩ

–0.3 0 +0.3 V

–

1 10 µA

– 60 – dB

2.5 – VCC V

– 1.0 2.0 V

Pin Connection Diagram

(Front View)

17 Power VCC2

16 Output 2

15 Output 1

14 GND 1

13 GND 2

12 Output 4

11 Output 3

10 Power VCC1

9 Pre–VCC

8 Ripple

7 Input 2

6 NF 2

5 Pre–GND

4 Stand–By Switch

3 NF 1

2 Input 1

1 Mute Switch

1.440 (36.6)

1.180 (30.0)

.197 (5.0)

.154

(3.9)

1

.670

(17.0)

.550

(14.0)

17 .394

(10.0)

.197

(5.0)

.079 (2.0)

.079 (2.0)

.101 (2.56)

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