AK4950 Datasheet, PDF (8/106 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP & mini DSP

[AK4950]
Parameter
min
typ
max
Unit
DAC Characteristics:
Resolution
-
-
24
Bits
Stereo Line Output Characteristics: DAC → LOUT, ROUT pins, ALC=OFF, DVOL=OVOL =0dB,
LOVL1-0 bit = “01”, R_L=10kΩ, PMBP bit= “0”
LOVL0 bit = “1”
2.27
2.52
Output Voltage (Note 12)
LOVL0 bit = “0”
1.94
2.16
2.77
Vpp
2.38
Vpp
S/(N+D) (−3dBFS)
73
83
-
dBFS
S/N
(A-weighted)
82
92
-
dB
Interchannel Isolation
85
100
-
dB
Interchannel Gain Mismatch
-
-
0.8
dB
Load Resistance
10
-
-
kΩ
Load Capacitance
-
-
30
pF
PSRR (fin =1kHz)
-
80
-
dB
Speaker-Amp Characteristics: DAC → SPP/SPN pins, ALC=OFF, DVOL=OVOL =0dB, R_L=8Ω, BTL
Output Voltage
SPKG1-0 bits = “00”, −0.5dBFS (Po=150mW)
-
3.18
-
Vpp
SPKG1-0 bits = “01”, −0.5dBFS (Po=250mW)
3.20
4.00
4.80
Vpp
SPKG1-0 bits = “10”, −0.5dBFS (Po=400mW)
-
1.79
-
Vrms
S/(N+D)
SPKG1-0 bits = “00”, −0.5dBFS (Po=150mW)
-
75
-
dB
SPKG1-0 bits = “01”, −0.5dBFS (Po=250mW)
20
70
-
dB
SPKG1-0 bits = “10”, −0.5dBFS (Po=400mW)
-
65
-
dB
S/N
SPKG1-0 bits = “01”, −0.5dBFS(Po=250mW)
85
95
-
dB
(A-weighted)
Load Resistance
6.8
-
-
Ω
Load Capacitance
-
-
30
pF
PSRR (fin =1kHz)
-
60
-
dB
Note 12. AVDD should be in the range of 3.0~3.6V when LOVL0 bit is “1”. It should be in the range of 2.7~3.6V when
LOVL0 bit is “0”.
MS1320-E-00
-8-
2011/10