ASAHI KASEI
[AK4370]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=DVDD=HVDD=2.4V, VSS1=VSS2=0V; fs=44.1kHz; 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 38; unless otherwise specified)
Parameter
min
typ
max
Units
24
bit
DAC Resolution
-
-
Headphone-Amp: (HPL/HPR pins) (Note 8)
Analog Output Characteristics
THD+N
D-Range
S/N
-
-
82
-
82
-
60
dB
dB
dB
dB
dB
dB
dB
−3dBFS Output, 2.4V, Po=10mW@16Ω
0dBFS Output, 3.3V, Po=40mW@16Ω
−60dBFS Output, A-weighted, 2.4V
−60dBFS Output, A-weighted, 3.3V
A-weighted, 2.4V
−50
−20
90
92
90
−40
-
-
-
-
-
-
A-weighted, 3.3V
92
80
Interchannel Isolation
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Load Resistance (Note 9)
Load Capacitance
-
-
16
-
0.3
200
-
0.8
-
-
300
1.28
dB
ppm/°C
Ω
pF
Vpp
-
Output Voltage
1.04
1.16
−3dBFS Output (Note 10)
0dBFS Output, 3.3V,
Po=40mW@16Ω
-
0.8
-
Vrms
Output Volume: (HPL/HPR pins)
Step Size
0.1
0.1
-
1.5
3
0
2.9
5.9
-
dB
dB
dB
dB
0 ∼ –30dB
–30 ∼ –63dB
Max (ATT4-0 bits = “00H”)
Min (ATT4-0 bits = “1FH”)
(HPG1-0 bits = “00”)
Gain Control Range
(HPG1-0 bits = “00”)
-
-
−63
Stereo Line Output: (LOUT/ROUT pins, RL=10kΩ) (Note 11)
Analog Output Characteristics:
THD+N (0dBFS Output)
-
80
-
dB
dB
dB
−60
87
90
−50
-
-
S/N
A-weighted, 2.4V
A-weighted, 3.3V
DC Accuracy
Gain Drift
Load Resistance (Note 9)
Load Capacitance
-
10
-
200
-
-
-
-
ppm/°C
kΩ
pF
Vpp
25
1.61
Output Voltage (0dBFS Output) (Note 12)
Output Volume: (LOUT/ROUT pins)
Step Size
1.32
1.47
1
-
-
2
0
−30
3
-
-
dB
dB
dB
Gain Control Range
(LOG1-0 bit = “0”)
Max (ATTS3-0 bits = “FH”)
Min (ATTS3-0 bits = “0H”)
Note 8. DALHL=DARHR bits = “1”
LIN1HL=RIN1HL=LIN2HL=RIN2HL=LIN1HR=RIN1HR=LIN2HR=RIN2HR 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”
LIN1L=RIN1L=LIN2L=RIN2L=LIN1R=RIN1R=LIN2R=RIN2R bits = “0”
Note 12. Output voltage is proportional to AVDD voltage. Vout = 0.61 x AVDD(typ)@0dBFS.
MS0595-E-00
2007/03
- 7 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
