AK5373 Datasheet, PDF (7/53 Pages) Asahi Kasei Microsystems – 24-bit Stereo ADC with USB Interface

[AK5373]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=DVDD=3.3V; VSS1=VSS2=VSS3=0V; Signal Frequency = 1kHz; Sampling Frequency = 48kHz;
BW = 20Hz to 20kHz, unless otherwise specified)
Parameter
min
typ
max
Units
Microphone Amplifier: MICLP/MICLN/MICRP/MICRN pins
Input Resistance
10
20
-
kΩ
MGAIN2-0 bits = “001”
-1
0
+1
dB
MGAIN2-0 bits = “010”
+5
+6
+7
dB
MGAIN2-0 bits = “011”
+11
+12
+13
dB
Gain
MGAIN2-0 bits = “100”
+17
+18
+19
dB
MGAIN2-0 bits = “101”
+23
+24
+25
dB
MGAIN2-0 bits = “110”
+29
+30
+31
dB
MGAIN2-0 bits = “111”
+35
+36
+37
dB
Microphone Power Supply: MPWR pin
Output Voltage
1.9
2.2
2.5
V
Output Current
-
-
2.0
mA
ADC Analog Input Characteristics: MICLP/MICLN/MICRP/MICRN pins
Resolution
-
-
24
Bits
Input Voltage
(Note 6)
(Note 7)
±1.00
-
±1.20
±0.038
±1.40
Vpp
-
Vpp
S/(N+D) (-1dBFS)
(Note 6)
(Note 7)
75
85
-
70
-
dB
-
dB
Dynamic Range (−60dBFS, A-weighted)
(Note 6)
(Note 7)
81
91
-
78
-
dB
-
dB
S/N (A-weighted)
(Note 6)
(Note 7)
81
91
-
78
-
dB
-
dB
Power Supplies:
Power Supply Current
Normal operation (internal ADC mode)
AVDD
-
10
15
mA
DVDD
-
20
30
mA
Power down
RSTN pin = “L” (Note 8)
Suspend mode
-
10
100
μA
-
10
100
μA
Note 6. MGAIN2-0 bits = “001” (0dB)
Note 7. MGAIN2-0 bits = “110” (+30dB)
Note 8. All digital input pins are fixed to DVDD or VSS2.
MS1202-E-00
-7-
2010/06