AK4951EG Datasheet, PDF (15/30 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4951]
Parameter
min
typ
max Unit
DAC Characteristics:
Resolution
-
-
24
Bits
Headphone-Amp Characteristics: DAC → HPL, HPR pins, ALC=OFF, IVOL=DVOL= 0dB, R_L=16
Output Voltage (0dBFS)
1.44
1.60
1.76 Vpp
S/(N+D)
S/N (A-weighted)
R_L=16Ω
R_L=10kΩ
50
75
-
dB
-
80
-
dB
87
97
-
dB
Interchannel Isolation
65
80
-
dB
Interchannel Gain Mismatch
-
0
0.8
dB
Output Offset Voltage
-1
0
+1
mV
Load Resistance
16
-
-

Load Capacitance
-
-
300
pF
PSRR (f = 1kHz) (Note 16)
AVDD
DVDD
-
74
-
dB
-
90
-
dB
Speaker-Amp Characteristics: DAC → SPP/SPN pins, ALC=OFF, IVOL=DVOL= 0dB, R_L=8, 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
SPKG1-0 bits = “11”, 0.5dBFS (Po=1000mW)
(SVDD=5V)
-
2.83
-
Vrms
S/(N+D)
SPKG1-0 bits = “00”, 0.5dBFS (Po=150mW)
-
80
-
dB
SPKG1-0 bits = “01”, 0.5dBFS (Po=250mW)
40
75
-
dB
SPKG1-0 bits = “10”, 0.5dBFS (Po=400mW)
-
20
-
dB
SPKG1-0 bits = “11”, 0.5dBFS (Po=1000mW)
(AK4951EN: SVDD=5V)
-
20
-
dB
S/N (A-weighted)
SPKG1-0 bits = “01”
80
99
-
dB
Output Offset Voltage
SPKG1-0 bits = “01”
-30
0
+30 mV
Load Resistance
8
-
-

Load Capacitance
-
-
100
pF
PSRR (f = 1kHz) (Note 17)
AVDD
DVDD
-
80
-
dB
-
60
-
dB
Stereo Line Output Characteristics: DAC → LOUT, ROUT pins, ALC=OFF, IVOL=DVOL = 0dB,
R_L=10k, LVCM1-0 bits = “01”
Output
(0dBFS)
LVCM0 bit = “0”, SVDD=2.8V
LVCM0 bit = “1”
-
-
2.26
1.0
Voltage
(-3dBFS)
LVCM0 bit = “0”, SVDD=2.8V
LVCM0 bit = “1”
1.44
1.82
1.6
2.0
-
Vpp
-
Vrms
1.76 Vpp
2.22 Vpp
S/(N+D) ^(0dBFS)
LVCM0 bit = “0”, SVDD=2.8V
LVCM0 bit = “1”
-
-
80
-
dB
80
-
dB
(-3dBFS)
75
85
-
dB
S/N (A-weighted)
82
94
-
dB
Interchannel Isolation
-
100
-
dB
Interchannel Gain Mismatch
-
0
0.8
dB
Load Resistance
10
-
-
k
Load Capacitance
-
-
30
pF
Note 16. PSRR applied with 500mVpp sine wave.
Note 17. PSRR applied to AVDD or SVDD with 500mVpp sine wave.
014004561-E-00-PB
- 15 -
2014/08