A4533_10 datasheet(3/4 Pages) UTC

Part #	A4533

Description	LOW POWER AMPLIFIER FOR HEADPHONE STEREOS

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Manufacturer	UTC [Unisonic Technologies]

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A4533

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 4

www.unisonic.com.tw

QW-R107-044.A

ABSOLUTE MAXIMUM RATINGS (TA = 25°C)

PARAMETER

SYMBOL

RATINGS

UNIT

Power Supply Voltage

VCC

4.5

V

Power Dissipation

PD

300

mW

Junction Temperature

TJ

125

℃

Operating Temperature

TOPR

-20 ~ +85

℃

Storage Temperature

TSTG

-40 ~ +150

℃

Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

2. The device is guaranteed to meet performance specification within 0℃ ~ 70℃ operating temperature range

and assured by design from –20℃ ~ 85℃.

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

VCC

3

V

Operating Voltage Range

VOPR

1.6 ~ 4

V

Load Resistance

RL

16 ~ 32

Ω

ELECTRICAL CHARACTERIS (Ta = 25°C, RL=16Ω, Rg=600Ω, Unless Otherwise specified)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP MAX UNIT

IQ1

VCC=2.4V

5.4

10

mA

IQ2

VCC=4.5V, Mute =GND

1.1

2.0

mA

Quiescent Current

IQ3

VCC=4.5V, PS = GND

1.0

μA

GV1

VCC=2.4V, f=1kHz, VOUT=–10dBm

30

32

34

dB

Voltage Gain

GV2

VCC=1.6V, f=1kHz, VOUT=–20dBm

29

32

34

dB

ΔGV1

VCC=2.4V, f=1kHz, VOUT=–10dBm

1.0

dB

Voltage Gain Difference

ΔGV2

VCC=1.6V, f=1kHz, VOUT=–20dBm

1.0

dB

Total Harmonic Distortion

THD

VCC=2.0V, f=1kHz, POUT=1mW

0.5

1.5

%

Output Power

POUT

VCC=3.0V, f=1kHz, THD=10%

20

40

mW

Cross Talk

CT

VCC=2.4V, f=100Hz, Rg=1kW,

VOUT=–10dB

40

50

dB

Ripple Rejection

RR

VCC=1.6V, f=100Hz, Rg=1kΩ,

VR=–20dBm, BPF=100Hz

45

60

dB

Output Noise Voltage

eN

VCC=4.5V, Rg=1kΩ,BPF=20Hz ~ 20kHz

62

100

μV

Power Off Effect

VO(OFF)

VCC=1.6V, f=100Hz, PS = GND,

VIN=–10dB

-80

dB

Muting Effect

VO(MT)

VCC=1.6V, f=100Hz, Mute = GND,

VIN=–10dB

-80

dB

Power On Current Sensitivity

IPS(ON)

VCC=1.5V, VREF≥0.85V

0.05

1.0

μA

Power Off Voltage Sensitivity

VPS(OFF) VCC=1.5V, VREF ≤0.1V

0.5

0.6

V

Muting Off Current Sensitivity

IMUTE(OFF) VCC=1.5V, VREF ≥0.85V

0.2

1.0

μA

Muting On Voltage Sensitivity

VMUTE(ON) VCC=1.5V, VREF ≤0.1V

0.5

0.65

V

Note: The quiescent current is represented by the current flowing into pin 6. The respective maximum currents

flowing into pin 1 and pin 10 are calculated by (pin voltage –0.5) / 16 [V/kΩ] and the total current increases by

these current values.

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