Amplificador

UTC2025
STEREO AUDIO AMPLIFIER
DESCRIPTION

LI NEAR I NTEGRATED CI RCUI T

The UTC2025 is a monolithic integrated audio amplifier in a 16-pin plastic dual in line package. It is designed forportable cassette players and radios.

FEATURES
*Working Voltage down to 3V *Few External components *High Channel isolation *Voltage gain up to 45dB(Adjustable with external resistor) *Soft clipping*Internal Thermal protection

DIP-16

BLOCK DIAGRAM
9 10 11
50 10k THERMAL PROTECT

12

13

14

15

START CIRCUIT 5k

8 7

DECOUPLING 50

16

1
10k

50

6

5

4

32

ABSOLUTE MAXIMUM RATINGS
Characteristic
Supply Voltage Output Peak Current Junction Temperature Storage Temperature

Symbol
VS IO Tj Tstg

Value
15 1.5 150 -40+150

Unit
V A

°°

YOUW ANG ELECTRONI CO. CS LTD

1

UTC2025
ELECTRICAL CHARACTERISTICS

LI NEAR I NTEGRATED CI RCUI T

(Tamb=25°,VCC=9V,Stereo,Unless otherwise specified) Parameter Symbol Testconditions
Supply Voltage Quiescent Current Quiescent output voltage Voltage gain Voltage gain difference Input impedance VS IQ VO AV ∆AV Ri f=1kHz;d=10% Stereo per channel VCC=9V;RL=4Ω RL=8Ω VCC=6V;RL=4ΩRL=8Ω VCC=3V;RL=4Ω Bridge VCC=9V;RL=8Ω VCC=6V;RL=4Ω VCC=9V;RL=4Ω f=1kHz;PO=250mW Stereo Bridge RG=0;AV=45dB Vripple=150mVRMS Fripple=100Hz AV=200 Bandwidth: 20Hz to 20kHz RG=0 RG=10kΩ RG=10kΩ;f=1kHz;RL=4Ω PO=1W

Min
3

Typ
40 4.5 45 51 30

Max
12 50 47 53 ±1

Unit
V mA V dB dB kΩ

Stereo Bridge

43 49

1.7 0.7

Output Power

PO

2.3 1.3 1 0.6 0.1 4.7 2.8

W

Distortiond

40

0.3 0.5 46

1.5 -

%

Supply voltage Rejection

SVR

dB

Input noise Voltage

Vn

Cross-Talk

C.T.

40

1.5 3 55

3 6 -

µV dB

THERMAL RESISTANCERth(j-c):Junction to case thermal resistance 15° /W Rth(j-a):Junction to ambient thermal resistance 60° /w

YOUW ANG ELECTRONI CO. CS LTD

2

UTC2025
PIN CONNECTION

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