APA2181 查看數據表（PDF） - Anpec Electronics

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APA2181

Low Supply Current, 50mW Stereo Cap-Free Headphone Driver

Anpec Electronics 

APA2181

Electrical Characteristics (Cont.)

VDD=3.6V, VGND=VPGND=0V, VSDN=VDD, CCPF=CCPO=1µF, Ci=1µF, TA=25oC (unless otherwise noted)

Symbol

Parameter

Test Conditions

APA2181

Unit

Min.

Typ.

Max.

DRIVERS (CONT.)

VDD=2.3V to 5.5V, Vrr=200mVrms

PSRR

Power Supply Rejection Ratio

fin= 217Hz

fin= 1kHz

-

fin= 20kHz

-80

-80

-60

-60

dB

-40

-35

CL

Maximum Capacitive Load

-

400

-

pF

Tstart-up

Start-up Time

-

4

-

ms

VESD

ESD Protection

OUTR, OUTL

-

8

-

kV

THD+N=1%, fin=1kHz

RL=16Ω

PO

Output Power (Stereo, In

Phase)

RL=32Ω

THD+N=10%, fin=1kHz

RL=16Ω

RL=32Ω

50

45

60

-

70

80

-

mW

-

THD+N

Total Harmonic Distortion

Plus Noise

PO=20mW, RL=32Ω

fin=20Hz

fin=1kHz

fin=20kHz

-

0.03

0.03

-

%

0.20

Crosstalk Channel Separation

PO=40mW, RL=32Ω,

fin=20Hz

fin=1kHz

fin=20kHz

75

85

85

-

70

dB

S/N

Signal to Noise Ratio

VDD=5V, PO=140mW, RL=32Ω,

With A-weighting Filter

-

95

-

LDO (LOW DROP-OUT REGULATOR)

VO

Output Voltage Accuracy

Over Temp & Over Load Current

-

±5

-

%

IO

Output Current

5

-

-

ILIM

Current-Limit

30

40

50

mA

ISC

Short Circuit Current-Limit

6

8

10

PSRR

Power Supply Rejection Ratio IO=1mA, fin=1kHz

-

40

-

dB

Copyright © ANPEC Electronics Corp.

4

Rev. A.2 - Apr., 2010

www.anpec.com.tw

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