AK4342 Datasheet, PDF (9/43 Pages) Asahi Kasei Microsystems – 24-Bit Stereo DAC with HP-AMP & 2V Line-Out

ASAHI KASEI
[AK4342]
Parameter
min
typ
max
Units
Aux Output: (DAC Æ LAUX/RAUX pins) (Note 15)
Analog Output Characteristics
THD+N fs=44.1kHz 0dBFS Output
-
−87
−77
dB
BW=20kHz −60dBFS Output
-
−32
-
dB
fs=96kHz 0dBFS Output
-
−87
−77
dB
BW=40kHz −60dBFS Output
Dynamic Range (−60dBFS Output, A-weighted)
-
−30
87
95
-
dB
-
dB
S/N (A-weighted)
Interchannel Isolation
87
95
80
100
-
dB
-
dB
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
-
0.2
0.8
dB
-
200
-
ppm/°C
Load Resistance
Load Capacitance
(Note 16)
10
-
(C4 in Figure 4)
-
-
-
kΩ
25
pF
Output Voltage
(Note 17)
0.63
0.70
0.77
Vrms
Output Volume for Headphone-amp (PGAL, PGAR):
Step Size +6dB to –10dB
0.1
1
1.9
dB
–10dB to –32dB
0.1
2
3.9
dB
–32dB to –48dB
0.1
4
7.9
dB
Output Volume for Lineout-amp (LPGA):
Step Size 0dB to –31dB
0.1
1
1.9
dB
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”)
(Note 18)
AVDD+HVDD+PVDD
-
DVDD+TVDD (fs = 44.1kHz)
-
DVDD+TVDD (fs = 96kHz)
-
Power-Down Mode (PDN pin = “L”) (Note 19)
AVDD+HVDD+PVDD+DVDD+TVDD
-
28
45
mA
2.5
4
mA
3.5
5.5
mA
10
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.
LAUX/RAUX pin
Analog
Out
C4
Figure 4. Aux-out circuit example
MS0506-E-02
-9-
2006/07