AK4342EN datasheet(9/43 Pages) AKM

9 / 43 page

ASAHI KASEI

[AK4342]

MS0506-E-02

2006/07

- 9 -

Parameter

min

typ

max

Units

Aux Output: (DAC

LAUX/RAUX pins) (Note 15)

Analog Output Characteristics

fs=44.1kHz

0dBFS Output

−87

−77

BW=20kHz

−60dBFS Output

−32

fs=96kHz

0dBFS Output

−87

−77

THD+N

BW=40kHz

−60dBFS Output

−30

Dynamic Range (

−60dBFS Output, A-weighted)

S/N (A-weighted)

Interchannel Isolation

100

DC Accuracy

Interchannel Gain Mismatch

0.2

0.8

Gain Drift

200

ppm/

°C

Load Resistance

(Note 16)

Ω

Load Capacitance

(C4 in Figure 4)

Output Voltage

(Note 17)

0.63

0.70

0.77

Vrms

Output Volume for Headphone-amp (PGAL, PGAR):

+6dB to –10dB

0.1

1.9

–10dB to –32dB

0.1

3.9

Step Size

–32dB to –48dB

0.1

7.9

Output Volume for Lineout-amp (LPGA):

Step Size

0dB to –31dB

0.1

1.9

Power Supplies

Power Supply Current

Normal Operation (PDN pin = “H”)

(Note 18)

AVDD+HVDD+PVDD

DVDD+TVDD (fs = 44.1kHz)

2.5

DVDD+TVDD (fs = 96kHz)

3.5

5.5

Power-Down Mode (PDN pin = “L”)

(Note 19)

AVDD+HVDD+PVDD+DVDD+TVDD

100

µA

Note 15. PMVCM=PMDAC=PMAUX bits = “1”, PMHP=PMLO bits= “0”, LINL=LINR=RINL=RINR bits = “0”,

ATTL7-0=ATTR7-0= 0dB

Note 16. For AC load

Note 17. Output voltage is proportional to AVDD voltage. Vout (typ) = 0.212 x AVDD [Vrms] @ 0dBFS

Note 18. PMVCM=PMDAC=PMHP=PMLO=PMAUX bits = “1” and HP-Amp output is off.

Note 19. All digital input pins including clock pins (MCLK, BICK and LRCK) except I2C and CSN/CAD0 pins are held

at DVSS. I2C and CSN/CAD0 pins are held at TVDD.

Analog

Out

LAUX/RAUX pin

Figure 4. Aux-out circuit example

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