AK5397 Datasheet, PDF (8/44 Pages) Asahi Kasei Microsystems – 32-Bit Stereo Premium ADC

[AK5397]
8. Electrical Characteristics
■ Analog Characteristics
(Ta = 25C; AVDD=5.0V; DVDD=3.3V; AVSS=DVSS=0V; VREFHL=VREFHR=AVDD,
VREFLL=VREFLR=AVSS; fs=48kHz, 96kHz, 192kHz; BICK=64fs; Signal Frequency=1kHz; 32bit Data;
Measurement frequency=10Hz20kHz at fs=48kHz, 40Hz40kHz at fs=96kHz, 80Hz80kHz at
fs=192kHz; External circuit: Figure 41 “Analog input buffer circuit example 2”; unless otherwise specified)
Parameter
Min.
Typ.
Max.
Unit
Resolution
32
Bits
Analog Input Characteristics:
S/(N+D) fs=48kHz
-1dBFS
92
100
BW=20kHz -1dBFS (Note 10)
-
108
-2dBFS (Note 10)
-
110
-20dBFS
-
102
-60dBFS
-
64
dB
dB
dB
dB
fs=96kHz
-1dBFS
92
99
BW=40kHz -1dBFS (Note 10)
-
107
-20dBFS
-
99
-60dBFS
-
60
dB
dB
dB
fs=192kHz
-1dBFS
91
99
BW=80kHz -1dBFS (Note 10)
-
106
-20dBFS
-
94
-60dBFS
-
54
dB
dB
dB
Dynamic Range (-60dBFS with A-weighted)
(Stereo Mode)
122
127
dB
(Mono Mode)
125
130
dB
S/N (A-weighted) fs=48kHz
(Stereo Mode)
122
127
dB
(Mono Mode)
125
130
dB
S/N (Without A-weighted) fs=96kHz
(Stereo Mode)
115
120
dB
S/N (Without A-weighted) fs=192kHz
(Stereo Mode)
111
116
dB
Input Resistance
650
720

Interchannel Isolation
120
130
dB
Interchannel Gain Mismatch
0.1
0.5
dB
Gain Drift
150
ppm/C
Input Voltage (Note 11)
Input DC Bias Voltage
2.6
2.8
3.0
Vpp
0.382×AVDD
Vpp
Power Supplies:
Power Supply Current
AVDD + VREFHL + VREFHR
DVDD (fs=48kHz, MSN=H, SDM1=L, SDM2=H)
74.6
94.0
mA
24
33
mA
(fs=96kHz, MSN=H, SDM1=L, SDM2=L)
52
71
mA
(fs=192kHz, MSN=H, SDM1=L, SDM2=L)
53
72
mA
(fs=384kHz, MSN=H, SDM1=L, SDM2=L)
34
46
mA
(fs=768kHz, MSN=H, SDM1=L, SDM2=L)
34
46
mA
Power down current (AVDD + DVDD)
10
100
uA
Power Supply Rejection
(Note 12)
-
50
-
dB
Note 10. Using the circuit as shown in Figure 40(Analog input buffer circuit example 1)
Note 11. This value is (LIN+) – (LIN-) and (RIN+) - (RIN-). Input voltage is proportional to a difference
between VREFP and VREFL voltages.
Vin (typ.) = 2.8 x {(VREFH) – (VREFL)} / 5 [V]
014011535-E-00
-8-
2014/11