AK4367 Datasheet, PDF (6/38 Pages) Asahi Kasei Microsystems – OUTPUT MIXER & HP - AMP 24 BIT 2 CH DAC

ASAHI KASEI
[AK4367]
ANALOG CHARACTERISTICS
(Ta=25°C; VDD=HVDD=2.4V, VSS=0V; fs=44.1kHz; BOOST OFF; Signal Frequency =1kHz; Measurement band
width=10Hz ∼ 20kHz; Headphone-Amp: Load impedance is a serial connection with R_L =16Ω and C_L=220µF. (Refer to
Figure 32); Mono output: R_L =16Ω; unless otherwise specified)
Parameter
min
typ
max
Units
DAC Resolution
-
-
24
bit
Headphone-Amp: (HPL/HPR pins) (Note 3)
Analog Output Characteristics
THD+N −4.8dBFS Output, Po=10mW@16Ω, 2.4V
-
−55
−45
dB
−3dBFS Output, Po=28mW@16Ω, 3.3V
-
−55
-
dB
−3dBFS Output, Po=14mW@32Ω, 3.3V
-
−57
-
dB
D-Range −60dBFS Output, A-weighted, 2.4V
84
92
-
dB
−60dBFS Output, A-weighted, 3.3V
-
94
-
dB
S/N
A-weighted, 2.4V
84
92
-
dB
A-weighted, 3.3V
-
94
-
dB
Interchannel Isolation
60
80
-
dB
DC Accuracy
Interchannel Gain Mismatch
-
0.2
Gain Drift
-
200
Load Resistance
(Note 4)
16
-
Load Capacitance
-
Output Voltage (−4.8dBFS Output)
(Note 5)
1.02
1.13
Max Output Power
R_L=16Ω, 2.4V
R_L=16Ω, 3.3V
-
26
-
50
Mono Output: (MOUT pin) (Note 6)
-
dB
-
ppm/°C
-
Ω
-
300
1.24
Vpp
-
mW
-
mW
Analog Output Characteristics:
THD+N
S/N
(0dBFS Output)
(A-weighted)
-
−60
−50
dB
84
92
-
dB
DC Accuracy
Gain Drift
Load Resistance
Load Capacitance
Output Voltage
-
200
(Note 4)
10
-
-
-
(Note 7)
1.42
1.58
-
ppm/°C
-
kΩ
25
pF
1.74
Vpp
Output Volume: (MOUT pin)
Step Size
Gain Control Range
1
2
−30
-
3
dB
0
dB
Note 3. DACL=DACR bits = “1”, MINL=MINR=LINL=RINR bits = “0”, ATTL=ATTR=0dB.
Note 4. AC Load
Note 5. Output voltage is proportional to VDD voltage. Vout = 0.47 x VDD(typ)@−4.8dBFS.
Note 6. DACM bit = “1”, DACL=DACR bits = “0”, LINM=RINM=MINM bits = “0”, ATTL=ATTR=ATTM=0dB, and
common mode signal is input to L/Rch of DAC.
Note 7. Output voltage is proportional to VDD voltage. Vout = 0.66 x VDD(typ).
MS0247-E-01
-6-
2004/11