AK5355VT Datasheet, PDF (6/20 Pages) Asahi Kasei Microsystems – Low Power 16bit ΔΣ ADC

ASAHI KASEI
[AK5355]
ANALOG CHARACTERISTICS
(Ta=25°C; VA, VD=3.0V; fs=44.1kHz; Signal Frequency=1kHz; Measurement frequency=10Hz ∼ 20kHz;
unless otherwise specified)
Parameter
min
typ
max
Units
Resolution
16
bits
Input PGA Characteristics (IPGA):
Input Voltage (Note 2)
Gain = 0dB
1.65
1.8
1.95
Vpp
Gain = +15dB
0.29
0.32
0.35
Vpp
Input Impedance
Gain = 0dB
27
40
kΩ
Gain = +15dB
20
30
kΩ
ADC Analog Input Characteristics: (Note 3)
S/(N+D) (-0.5dBFS Output)
Gain = 0dB
75
85
dB
Gain = +15dB
70
80
dB
D-Range (-60dBFS Output, A-weight)
Gain = 0dB
Gain = +15dB
84
76
91
84
dB
dB
S/N (A-weight)
Gain = 0dB
84
91
dB
Gain = +15dB
76
84
dB
Interchannel Isolation
Interchannel Gain Mismatch
Gain = 0dB
90
100
dB
Gain = +15dB
80
90
dB
Gain = 0dB
0.2
0.5
dB
Gain = +15dB
0.2
1.0
dB
Power Supplies
Power Supply Current: VA+VD
Normal Operation (PDN=“H”)
5
7.5
mA
Power Down (PDN=“L”) (Note 4)
AK5355VT
10
100
µA
AK5355VN
10
20
µA
Note 2. Analog input voltage (full-scale voltage) scales with VA.
Gain = 0dB; 0.6 x VA
Gain = +15dB; 0.107 x VA
Note 3. ADC measurements are input from LIN/RIN and routed through input gain amplifier.
The internal HPF cancels the offset of input gain amplifier and ADC.
Note 4. In case of power-down mode, all digital input pins including clocks pins (MCLK, BCLK and LRCK) are held at
VD or VSS. PDN pin is held at VSS.
MS0113-E-01
-6-
2005/01