Datasheet

[AK4646]
MS0557-E-06 2011/06
- 9 -
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”