AK4121A_10 Datasheet, PDF (5/20 Pages) Asahi Kasei Microsystems – Asynchronous Sample Rate Converter

[AK4121A]
DIGITAL FILTER
(Ta=−40∼85°C; VDD=3.0∼3.6V; TVDD=3.0~5.5V)
Parameter
Symbol
min
typ
max
Units
Digital Filter
Passband −0.001dB 0.985 ≤ FSO/FSI ≤ 6.000 PB
0
0.4583FSI kHz
0.905 ≤ FSO/FSI < 0.985 PB
0
0.4167FSI kHz
0.714 ≤ FSO/FSI < 0.905 PB
0
0.3195FSI kHz
0.656 ≤ FSO/FSI < 0.714 PB
0
0.2852FSI kHz
0.536 ≤ FSO/FSI < 0.656 PB
0
0.2245FSI kHz
0.492 ≤ FSO/FSI < 0.536 PB
0
0.2003FSI kHz
0.452 ≤ FSO/FSI < 0.492 PB
0
0.1781FSI kHz
0.333 ≤ FSO/FSI < 0.452 PB
0
0.1092FSI kHz
Stopband
0.985 ≤ FSO/FSI ≤ 6.000
SB
0.5417FSI
kHz
0.905 ≤ FSO/FSI < 0.985
SB
0.5021FSI
kHz
0.714 ≤ FSO/FSI < 0.905
SB
0.3965FSI
kHz
0.656 ≤ FSO/FSI < 0.714
SB
0.3643FSI
kHz
0.536 ≤ FSO/FSI < 0.656
SB
0.2974FSI
kHz
0.492 ≤ FSO/FSI < 0.536
SB
0.2732FSI
kHz
0.452 ≤ FSO/FSI < 0.492
SB
0.2510FSI
kHz
0.333 ≤ FSO/FSI < 0.452
SB
0.1822FSI
kHz
Passband Ripple
PR
±0.01
dB
Stopband Attenuation
SA
96
dB
Group Delay
(Note 6)
GD
-
57.5
-
1/fs
Note 6. This value is the time from the rising edge of LRCK after data is input to rising edge of LRCK after data is
output, when LRCK for Output data corresponds with LRCK for Input.(at 20bit MSB justified, 16bit and 20bit
LSB justified)
DC CHARACTERISTICS
(Ta=−40∼85°C; VDD=3.0~3.6V; TVDD=3.0~5.5V)
Parameter
Symbol
Power Supply Current (VDD+TVDD)
Normal operation:
FSI=FSO=48kHz at Slave Mode: VDD=TVDD=3.3V
FSI=FSO=96kHz at Master Mode: VDD=TVDD=3.3V
: VDD=TVDD=3.6V
Power down: PDN = “L”
(Note 7)
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage
(Iout=−400μA)
Low-Level Output Voltage
(Iout=400μA)
Input Leakage Current
VIH
VIL
VOH
VOL
Iin
Note 7. All digital inputs including clock pins are held DVSS.
min typ max Units
10
-
mA
20
-
mA
40
mA
10
100
μA
0.7xVDD -
-
V
-
- 0.3xVDD V
VDD-0.4 -
-
V
-
-
0.4
V
-
-
± 10
μA
MS0337-E-06
-5-
2010/04