AK4953A Datasheet, PDF (8/96 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4953A]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=TVDD=SVDD=3.3V, DVDD=1.8V; VSS1=VSS2=VSS3=VSS4=0V; fs=44.1kHz, BICK=64fs;
Signal Frequency=1kHz; 24bit Data; Measurement frequency=20Hz ∼ 20kHz; unless otherwise specified)
Parameter
min
typ
max
Units
MIC Amplifier: LIN1, RIN1, LIN2, RIN2, LIN3, RIN3 pins
Input Resistance
20
30
40
kΩ
Gain
MGAIN2-0 bits = “000”
-1
0
+1
dB
MGAIN2-0 bits = “001”
+11
+12
+13
dB
MGAIN2-0 bits = “010”
+15
+16
+17
dB
MGAIN2-0 bits = “011”
+19
+20
+21
dB
MGAIN2-0 bits = “100”
+22
+23
+24
dB
MGAIN2-0 bits = “101”
+25
+26
+27
dB
MGAIN2-0 bits = “110”
+28
+29
+30
dB
MIC Power Supply: MPWR1, MPWR2 pins
Output Voltage
2.1
2.3
2.5
V
Output Noise Level (A-weighted)
-
-108
-
dBV
PSRR (f = 1kHz) (Note 11)
-
100
-
dB
Load Resistance
1.0
-
-
kΩ
Load Capacitance
-
-
30
pF
ADC Analog Input Characteristics: LIN1/RIN1/LIN2/RIN2/LIN3/RIN3 pins → ADC → Programmable Filter
(IVOL=0dB, EQ=ALC=OFF) → SDTO
Resolution
-
-
24
Bits
Input Voltage
(Note 12)
0.21
0.24
0.27
Vpp
(Note 13)
2.16
2.4
2.64
Vpp
fs=44.1kHz (Note 12)
72
82
-
dBFS
BW=20kHz (Note 13)
-
85
-
dBFS
S/(N+D) (-1dBFS)
fs=96kHz (Note 12)
-
79
-
dBFS
BW=40kHz (Note 13)
-
80
-
dBFS
D-Range (−60dBFS, A-weighted)
(Note 12)
(Note 13)
78
-
88
96
-
dB
-
dB
S/N (A-weighted)
(Note 12)
78
88
(Note 13)
-
96
-
dB
-
dB
Interchannel Isolation
(Note 12)
75
90
(Note 13)
-
100
-
dB
-
dB
Interchannel Gain Mismatch
(Note 12)
-
(Note 13)
-
0
0.8
dB
0
0.8
dB
Note 11. PSR is applied to AVDD with 500mpVpp sine wave.
Note 12. MGAIN2-0 bits = “011” (+20dB)
Note 13. MGAIN2-0 bits = “000” (0dB)
MS1252-E-00
-8-
2010/10