AK4646_11 Datasheet, PDF (9/81 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/SPK-AMP

[AK4646]
Parameter
min
typ
max
Units
DAC Characteristics:
Resolution
-
-
16
Bits
Stereo Line Output Characteristics: DAC → LOUT, ROUT pins, ALC=OFF, OVOL=0dB,
LOVL1-0 bit = “00”, R_L=10kΩ
Output Voltage (Note 17) LOVL1-0 bit = “00”
1.78
1.98
2.18
Vpp
LOVL1-0 bit = “01”
2.25
2.50
2.75
Vpp
S/(N+D) (−3dBFS)
78
88
-
dBFS
S/N
(A-weighted)
82
92
-
dB
Interchannel Isolation
85
100
-
dB
Interchannel Gain Mismatch
-
0.1
0.8
dB
Load Resistance
10
-
-
kΩ
Load Capacitance
-
-
30
pF
Speaker-Amp Characteristics: DAC → SPP/SPN pins, ALC=OFF, OVOL=0dB, R_L=8Ω, BTL, SVDD=3.3V
Output Voltage (Note 18)
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)
-
60
-
dB
SPKG1-0 bits = “01”, −0.5dBFS (Po=250mW)
20
50
-
dB
SPKG1-0 bits = “10”, −0.5dBFS (Po=400mW)
-
20
-
dB
S/N
(A-weighted)
80
90
-
dB
Load Resistance
8
-
-
Ω
Load Capacitance
-
-
30
pF
Note 17. Output voltage is proportional to AVDD voltage.Vout = 0.6 x AVDD (typ)@LOVL bit = “0”.
Note 18. Output voltage is proportional to AVDD voltage.
When the DAC input is -0.5dBFS in Full-differential mode, Vout = 0.96 x AVDD (typ)@SPKG1-0 bits = “00”,
1.21 x AVDD (typ)@SPKG1-0 bits = “01”, 1.52 x AVDD (typ)@SPKG1-0 bits = “10”, 1.92 x AVDD
(typ)@SPKG1-0 bits = “11”
MS0557-E-05
-9-
2011/01