AK4951AEN Datasheet, PDF (11/105 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4951A]
8. Electrical Characteristics
■ Analog Characteristics
(Ta=25C; AVDD=SVDD=3.3V, TVDD=DVDD=1.8V; VSS1=VSS2=VSS3=0V; fs=48kHz, BICK=64fs;
Signal Frequency=1kHz; 24bit Data; Measurement Bandwidth=20Hz  20kHz; unless otherwise
specified)
Parameter
Min.
Typ.
Max.
Unit
MIC Amplifier: LIN1, RIN1, LIN2, RIN2, LIN3, RIN3 pins
Input Resistance
20
30
40
k
Gain
Gain Setting
0
-
+30
dB
Step Width
-
3
-
dB
MIC Power Supply: MPWR1, MPWR2 pins
Output Voltage
MICL bit = “0”
MICL bit = “1”
2.2
1.8
2.4
2.0
2.6
V
2.2
V
Output Noise Level (A-weighted)
-
-108
-
dBV
Load Resistance
1.0
-
-
k
Load Capacitance
-
-
30
pF
PSRR (f = 1kHz) (Note 8)
-
100
-
dB
ADC Analog Input Characteristics: LIN1, RIN1, LIN2, RIN2, LIN3, RIN3 pins → ADC(Programmable
Filter = OFF) → SDTO
Resolution
-
-
24
Bits
Input Voltage (Note 9)
(Note 10)
-
(Note 11)
1.86
0.261
2.07
-
Vpp
2.28
Vpp
S/(N+D)
(Note 10)
73
83
-
dBFS
(-1dBFS)
(Note 11)
-
85
-
dBFS
D-Range (60dBFS,
(Note 10)
78
88
-
dB
A-weighted)
(Note 11)
-
96
-
dB
S/N (A-weighted)
(Note 10)
78
88
(Note 11)
-
96
-
dB
-
dB
Interchannel Isolation
(Note 10)
75
(Note 11)
-
100
110
-
dB
-
dB
Interchannel Gain Mismatch
(Note 10)
(Note 11)
-
-
0
0.5
dB
0
0.5
dB
PSRR (f = 1kHz) (Note 8)
-
80
-
dB
Note 8. PSRR applied to AVDD with 500mVpp sine wave.
Note 9. Vin = 0.9 x 2.3Vpp (typ) @MGAIN3-0 bits = “0000” (0dB)
Note 10. MGAIN3-0 bits = “0110” (+18dB)
Note 11. MGAIN3-0 bits = “0000” (0dB)
016001936-E-00
- 11 -
2016/03