AK4953A Datasheet, PDF (9/96 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4953A]
Parameter
min
typ
max
Units
DAC Characteristics:
Resolution
-
-
24
Bits
Headphone-Amp Characteristics: DAC → HPL, HPR pins, ALC=OFF, OVOL=DVOL= 0dB, R_L=16Ω
Output Voltage (0dBFS)
(0dBFS)
(-3dBFS)
-
1.75
1.11
1.24
-
Vpp
1.37
Vpp
S/(N+D)
(0dBFS)
(-3dBFS)
fs=44.1kHz, BW=20kHz
(Note 14)
fs=44.1kHz, BW=20kHz
-
70
80
80
fs=96kHz, BW=40kHz
-
77
-
dB
-
dB
-
dB
S/N (A-weighted)
86
96
-
dB
Interchannel Isolation
75
90
-
dB
Interchannel Gain Mismatch
-
0
0.8
dB
Output Offset Voltage
-1
0
+1
mV
PSRR (f = 1kHz) (Note 15)
-
80
-
dB
Load Resistance
16
-
-
Ω
Load Capacitance
-
-
300
pF
Speaker-Amp Characteristics: DAC → SPP/SPN pins, ALC=OFF, OVOL=DVOL= 0dB, R_L=8Ω, BTL
Output Voltage (Note 16)
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
SPKG1-0 bits = “00”, −1.5dBFS (Po=100mW)
(Note 17)
-
0.9
-
Vrms
S/(N+D)
SPKG1-0 bits = “00”, −0.5dBFS (Po=150mW)
-
70
-
dB
SPKG1-0 bits = “01”, −0.5dBFS (Po=250mW)
40
70
-
dB
SPKG1-0 bits = “10”, −0.5dBFS (Po=400mW)
-
20
-
dB
SPKG1-0 bits = “00”, −1.5dBFS (Po=100mW)
(Note 17)
-
20
-
dB
S/N (A-weighted)
85
95
-
dB
Output Offset Voltage
-30
0
+30
mV
PSRR (f = 1kHz) (Note 18)
-
50
-
dB
Load Resistance
6.8
8
-
Ω
Load Capacitance
-
-
30
pF
Note 14. When CPCK bit = “1”.
Note 15. PSR is applied to AVDD or DVDD with 500mpVpp sine wave.
Note 16. The output level is calculated by assuming that output signals are not clipped. In the actual case, the output signal
is clipped when DAC outputs 0dBFS signal. Therefore, DAC output level should be set to lower level by setting
digital volume so that Speaker-Amp output level is not clipped.
Note 17. When SVDD = 1.5V.
Note 18. PSR is applied to AVDD or SVDD with 500mpVpp sine wave.
MS1252-E-00
-9-
2010/10