AK4954AEN Datasheet, PDF (10/26 Pages) Asahi Kasei Microsystems – 32bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4954A]
Parameter
min
typ
max
DAC Characteristics:
Resolution
-
-
32
Headphone-Amp Characteristics: DAC → HPL, HPR pins, ALC=OFF, IVOL=DVOL= 0dB, R_L=16Ω
Output Voltage (Note 16)
1.44
1.60
1.76
(R_L=16Ω)
fs=44.1kHz,
BW=20kHz
55
65
-
S/(N+D)
fs=96kHz, BW=40kHz
-
65
-
(R_L=10kΩ)
fs=44.1kHz,
BW=20kHz
-
80
-
S/N (A-weighted)
90
100
-
Interchannel Isolation
65
80
-
Interchannel Gain Mismatch
-
0
0.8
Output Offset Voltage
-1
0
+1
PSRR (fin = 1kHz) (Note 17)
-
40
-
Load Resistance
16
-
-
Load Capacitance
-
-
300
Speaker-Amp Characteristics: DAC → SPP/SPN pins, ALC=OFF, IVOL=DVOL= 0dB, R_L=8Ω, BTL
Output Voltage
SLG1-0 bits = “00”, −0.5dBFS (Po=150mW)
-
3.18
-
SLG1-0 bits = “01”, −0.5dBFS (Po=250mW)
3.20
4.00
4.80
SLG1-0 bits = “10”, −0.5dBFS (Po=400mW)
-
1.79
-
SLG1-0 bits = “00”, −1.5dBFS (Po=100mW)
(Note 18)
-
0.9
-
S/(N+D)
SLG1-0 bits = “00”, −0.5dBFS (Po=150mW)
-
70
-
SLG1-0 bits = “01”, −0.5dBFS (Po=250mW)
40
70
-
SLG1-0 bits = “10”, −0.5dBFS (Po=400mW)
-
20
-
SLG1-0 bits = “00”, −1.5dBFS (Po=100mW)
(Note 18)
-
20
-
Output Noise Level
(A-weighted, SLG1-0 bits = “01”)
-
-97
-87
Output Offset Voltage
-30
0
+30
PSRR (fin = 1kHz) (Note 19)
-
50
-
Load Resistance
6.8
8
-
Load Capacitance
-
-
30
Stereo Line Output Characteristics: DAC → LOUT, ROUT pins, ALC=OFF, IVOL=DVOL=SLG= 0dB,
R_L=10kΩ
Output Voltage (Note 20)
-
2.24
-
S/(N+D)
74
84
-
S/N (A-weighted)
84
94
-
Interchannel Isolation
-
90
-
Interchannel Gain Mismatch
-
0
0.8
Load Resistance
10
-
-
Load Capacitance
-
-
30
Note 16. 出力フルスケール電圧は AVDD に比例します。(typ. 0.485 x AVDD Vpp)
Note 17. AVDD または DVDD に、100mVpp の正弦波を重畳した場合。
Note 18. SVDD=1.5V 時。
Note 19. AVDD または SVDD に、100mVpp の正弦波を重畳した場合。
Note 20. 出力フルスケール電圧は AVDD に比例します。(typ. 0.68 x AVDD Vpp)
Unit
Bits
Vpp
dB
dB
dB
dB
dB
dB
mV
dB
Ω
pF
Vpp
Vpp
Vrms
Vrms
dB
dB
dB
dB
dBV
mV
dB
Ω
pF
Vpp
dB
dB
dB
dB
kΩ
pF
MS1542-J-00-PB
- 10 -
2013/06