AK4372 데이터 시트보기 (PDF) - Asahi Kasei Microdevices
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AK4372 Datasheet PDF : 62 Pages
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[AK4372]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=DVDD=2.4V, VSS1=VSS2=0V; fs=44.1kHz; EXT mode; BOOST OFF; Slave Mode; Signal
Frequency =1kHz; Measurement band width=20Hz ∼ 20kHz; Headphone-Amp: Load impedance is a serial connection
with RL =16Ω and CL=220μF. (Refer to Figure 50; unless otherwise specified)
Parameter
min
typ
max
Units
DAC Resolution
-
-
24
bit
Headphone-Amp: (HPL/HPR pins) (Note 8)
Analog Output Characteristics
THD+N −3dBFS Output, 2.4V, Po=10mW@16Ω
-
−50
−40
dB
0dBFS Output, 3.3V, Po=40mW@16Ω
-
−20
-
dB
D-Range −60dBFS Output, A-weighted, 2.4V
82
90
-
dB
−60dBFS Output, A-weighted, 3.3V
-
92
-
dB
S/N
A-weighted, 2.4V
82
90
-
dB
A-weighted, 3.3V
-
92
-
dB
Interchannel Isolation
60
80
-
dB
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Load Resistance (Note 9)
Load Capacitance
Output Voltage −3dBFS Output (Note 10)
0dBFS Output, 3.3V,
Po=40mW@16Ω
-
0.3
-
200
16
-
-
-
1.04
1.16
-
0.8
0.8
dB
-
ppm/°C
-
Ω
300
pF
1.28
Vpp
-
Vrms
Output Volume: (HPL/HPR pins)
Step Size
0 ∼ –30dB
0.1
1.5
2.9
dB
(HPG1-0 bits = “00”) –30 ∼ –63dB
0.1
3
5.9
dB
Gain Control Range
Max (ATT4-0 bits = 00H)
-
0
-
dB
(HPG1-0 bits = “00”) Min (ATT4-0 bits = 1FH)
-
−63
-
dB
Stereo Line Output: (LOUT/ROUT pins, RL=10kΩ) (Note 11)
Analog Output Characteristics:
THD+N (0dBFS Output)
-
−60
−50
dB
S/N
A-weighted, 2.4V
80
87
-
dB
A-weighted, 3.3V
-
90
-
dB
DC Accuracy
Gain Drift
Load Resistance (Note 9)
Load Capacitance
Output Voltage (0dBFS Output) (Note 12)
-
200
10
-
-
-
1.32
1.47
-
ppm/°C
-
kΩ
25
pF
1.61
Vpp
Output Volume: (LOUT/ROUT pins)
Step Size
1
2
Gain Control Range
Max (ATTS3-0 bits = FH)
-
0
(LOG1-0 bit = “0”)
Min (ATTS3-0 bits = 0H)
-
−30
3
dB
-
dB
-
dB
Note 8. DALHL=DARHR bits = “1”, LINHL=RINHL=MINHL=LINHR=RINHR=MINHR bits = “0”.
Note 9. AC load.
Note 10. Output voltage is proportional to AVDD voltage. Vout = 0.48 x AVDD(typ)@−3dBFS.
Note 11. DALL=DARR bits = “1”, LINL=RINL=MINL=LINR=RINR=MINR bits = “0”
Note 12. Output voltage is proportional to AVDD voltage. Vout = 0.61 x AVDD(typ)@0dBFS.
MS0684-E-02
-7-
2008/12
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