Hoja de datos de "d2822a"

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DUAL POWER AMPLIFIER
GENERAL DESCRIPTION
The D2822 is a monolithic integrated circuit in 8 lead Minidip package. It is in tended for use as dual audio power amplifier in portableD2822

cassette tape players and radios.

FEATURES
Dual Low-voltage power a mplifier Supply voltage down to 1.8V Low cro sso v er d isto rtio n

Outline Drawing Low quiescent cu rrent Bridge orstereo configuratio n

BLOCK DIAGRAM
NF1 8 IN1 7 IN2 6 NF2 5

PINNING

OUTPUT(1) Vcc OUTPUT(2) GROUND

1 2 D2822 3 4

8 7 6 5

INPUT-(1) INPUT+(1) INPUT+(2) INPUT-(2)

_

+ BIASCIRCUIT

+

_

1 OUT1

2 Vcc

3 OUT2

4 GND

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MAXIMUM RATINGS
Characteristics Supply Voltage OutputPeak Current Total Power Dissipation(at Tamb =50 °C) Total Power Dissipation(at Tcase=50°C) Operating Ambient Temp erature Range Storage Temp erature Range Symbol Vcc Ipk PD PD Ta Tstg

D2822Value 15 1 1 1.4 -20~70 -40~150

Unit V A W W °C °C

ELECTRICAL CHARACTERISTICS 1. Stereo Test Circuit( Unless otherwise specified Vcc=6V,Ta mb=25°C)
Characteristic Supply Voltage Quiescent OutputVoltage Quiescent Drain Current Input Bias Current Symbol Vcc Vo Id IBA d=10% f=1kHz Vcc=3V R L =4 ¦¸ Vc c= 3V R L =32 ¦¸ d=10% f=1kHz Vcc=9V R L =8 ¦¸ Vc c= 6V R L =4 ¦¸ V c c= 4. 5 V R L = 4 ¦¸Po=0.5W R L =8 ¦¸ f = 1k Hz Vc c =9 V f=1kHz Vcc=3V Test Condition Min. Typ. Max. 1.8 2.7 1.2 6 100 110 20 1 0.65 0.32 0.3 40 ¡À f=1kHz Rs=10k ¦¸ Rs=10k ¦¸ B = Cu re A B = 22 Hz to2 2 kH z F 24 100 2 ¦Ì3 30 50 dB dB 1 9 15 Unit V V V mA nA mW

Output Power (Each Channel)

Po

0.4

W

Distortion Closed Loop Vo ltage Gain Channel Balance Input Resistance Total Input Noise Supply Voltagerejection Channel Separation

THD Avf ∆Av f Ri VNI SVR CSR

% dB dB k ¦¸ V

f=100Hz C1 =C2=100¦Ì f=1kHz

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