AK4342 Datasheet, PDF (7/43 Pages) Asahi Kasei Microsystems – 24-Bit Stereo DAC with HP-AMP & 2V Line-Out

ASAHI KASEI
[AK4342]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=DVDD=HVDD=PVDD=3.3V, TVDD=1.8V, AVSS=DVSS=HVSS=PVSS=0V; fs=44.1kHz;
Signal Frequency =1kHz; Measurement band width=10Hz ∼ 20kHz; Headphone-Amp: R_L =16Ω; Line output: R_L =10kΩ,
Aux output: R_L =10kΩ; Charge Pump Circuit External Capacitance: C1=C2= 2.2µF (see Figure 2); unless otherwise
specified)
Parameter
min
typ
max
Units
DAC Resolution
-
-
24
bit
LINEIN: (LIN/RIN pins)
Analog Input Characteristics:
Maximum Input Voltage (Note 7)
-
-
Feedback Resistance
14
20
Gain (LIN/RIN pins: External resistor = 20kΩ) (Note 8)
Vin = 1Vpp LIN/RIN → HPL/HPR (Note 9)
−1.5
1.5
LIN/RIN → LOUT/ROUT (Note 10)
4.5
7.5
LIN/RIN → LAUX/RAUX
Headphone-Amp: (DAC Æ HPL/HPR pins) (Note 11)
−4.7
−1.7
1.98
Vpp
26
kΩ
4.5
dB
10.5
dB
1.3
dB
Analog Output Characteristics
THD+N fs=44.1kHz 0dBFS Output, Po=62.5mW
-
−40
-
dB
BW=20kHz −4dBFS Output, Po=25mW
-
−60
−50
dB
fs=96kHz 0dBFS Output, Po=62.5mW
-
−40
-
dB
BW=40kHz −4dBFS Output, Po=25mW
-
−60
−50
dB
Dynamic Range (−60dBFS Output, A-weighted)
87
95
-
dB
S/N (A-weighted)
87
95
-
dB
Interchannel Isolation
60
80
-
dB
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Load Resistance
Load Capacitance
Output Voltage (0dBFS Output) (Note 12)
Line Output: (DAC Æ LOUT/ROUT pins) (Note 13)
-
0.2
1.0
dB
-
200
-
ppm/°C
16
-
-
Ω
-
-
300
pF
0.9
1.0
1.1
Vrms
Analog Output Characteristics
THD+N fs=44.1kHz 0dBFS Output
BW=20kHz -60dBFS Output
fs=96kHz 0dBFS Output
BW=40kHz -60dBFS Output
Dynamic Range (−60dBFS Output, A-weighted)
S/N (A-weighted)
Interchannel Isolation
-
−88
−78
dB
-
−37
-
dB
-
−88
−78
dB
-
−35
-
dB
92
100
-
dB
92
100
-
dB
80
100
-
dB
DC Accuracy
Interchannel Gain Mismatch
-
0.2
Gain Drift
-
200
Load Resistance
10
-
Load Capacitance
(C3 in Figure 3)
-
-
Output Voltage
(Note 14)
1.8
2.0
0.8
dB
-
ppm/°C
-
kΩ
25
pF
2.2
Vrms
MS0506-E-02
-7-
2006/07