APA2174 datasheet(4/21 Pages) ANPEC

4 / 21 page

Rev. A.6 - Dec., 2011

www.anpec.com.tw

APA2174

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

IDD

Supply Current

ISD

Shutdown Current

VRSD=VLSD=0V

µA

Input current

RSD, LSD

0.1

µA

CHARGE PUMP

fOSC

Switching Frequency

400

500

600

kHz

Req

Equivalent Resistance

Ω

DRIVERS

AVO

Open Loop Voltage Gain

100

GBW

Unity Gain Bandwidth

MHz

Output Resistance

IO=10mA

100

Ω

VSR

Slew Rate

2.5

µs

VOS

Output Offset Voltage

VDD=2.3V to 4.5V, RL = 600

Ω

-8

Noise Output Voltage

µVrms

VDD=2.3V to 4.5V, Vrr=200mVrms

fin= 217Hz

-90

-70

fin= 1kHz

-90

-70

PSRR

Power Supply Rejection Ratio

fin= 20kHz

-65

-60

Tstart-up

Start-up Time

500

µs

VESD

ESD Protection

OUTR, OUTL

THD+N=1%, fin=1kHz

RL=600

Ω

2.1

RL=100k

Ω

2.3

VDD=4.5V, THD+N=1%, fin=1kHz

RL=600

Ω

2.9

Output Voltage

(Stereo, in Phase)

RL=100k

Ω

3.2

Vrms

THD+N

Total Harmonic Distortion

Plus Noise

VO=2Vrms, RL=600

Ω

fin=20Hz

fin=1kHz

fin=20kHz

0.020

0.002

0.020

Crosstalk

Channel Separation

VO=2Vrms, RL=600

Ω

fin=20Hz

fin=1kHz

fin=20kHz

100

S/N

Signal to Noise Ratio

VO=2Vrms, RL=600

Ω

With A-weighting Filter

105

Electrical Characteristics

DD=3.3V, VGND=VPGND=0V, VRSD=VLSD=VDD, CCPF=CCPO=2.2µF, Ci=1µF, Ri=Rf=10kΩ, TA=25

oC (unless otherwise noted)

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