AK4128A Datasheet, PDF (10/50 Pages) Asahi Kasei Microsystems – 8ch 216kHz / 24-Bit Asynchronous SRC

[AK4128A]
SRC CHARACTERISTICS
(Ta=25°C; AVDD=DVDD1-4=3.3V; VSS1-5=0V; Signal Frequency = 1kHz; data = 24bit;
Measurement bandwidth = 20Hz ~ FSO/2; unless otherwise specified.)
Parameter
Symbol min typ
SRC Characteristics:
Resolution
Input Sample Rate
FSI
8
Output Sample Rate
FSO
8
THD+N
(Input = 1kHz, 0dBFS, Note 10)
FSO/FSI = 44.1kHz/48kHz
FSO/FSI = 48kHz/44.1kHz
FSO/FSI = 48kHz/192kHz
FSO/FSI = 192kHz/48kHz
-
−130
-
−124
-
−133
-
−124
Worst Case (FSO/FSI = 32kHz/176.4kHz)
Dynamic Range (Input = 1kHz, −60dBFS, Note 10)
-
-
FSO/FSI = 44.1kHz/48kHz
-
136
FSO/FSI = 48kHz/44.1kHz
-
136
FSO/FSI = 48kHz/192kHz
-
136
FSO/FSI = 192kHz/48kHz
-
132
Worst Case (FSO/FSI = 48kHz/32kHz)
Dynamic Range (Input = 1kHz, −60dBFS, A-weighted, Note 10)
132
-
FSO/FSI = 44.1kHz/48kHz
-
140
Ratio between Input and Output Sample Rate
FSO/FSI 1/6
Note 10. Measured by Audio Precision System Two Cascade.
max Units
24 Bits
216 kHz
216 kHz
-
dB
-
dB
-
dB
-
dB
-91
dB
-
dB
-
dB
-
dB
-
dB
-
dB
-
dB
6
-
POWER CONSUMPTION
(Ta= 25°C; AVDD=DVDD1-4=3.0~3.6V; VSS1-5=0V; Signal Frequency=1kHz; data=24bit; Asynchronous Input mode
(INAS pin = “H”), Output PORT: Master mode, OMCLK/XTI are input via a X’tal. PM2/1 pin = “H/L” 8ch mode, unless
otherwise specified.)
Parameter
min
typ
max Units
Power Supplies
Power Supply Current
Normal operation (PDN pin = “H”)
AVDD+DVDD1-4
FSI=FSO=48kHz: AVDD=DVDD1-4=3.3V (Note 12)
42
-
mA
FSI=FSO=192kHz: AVDD=DVDD1-4=3.3V (Note 13)
108
-
mA
: AVDD=DVDD1-4=3.6V (Note 14)
109
164 mA
Power down (PDN pin = “L”) (Note 11)
AVDD+DVDD1-4
10
100
μA
Note 11. All digital input pins are held to VSS2-5.
Note 12. It is 41 [mA] (typ) when the OMCLK/XTI pin is supplied a 24.576MHz external clock and the output port is in
slave mode.
Note 13. It is 105 [mA] (typ) when the OMCLK/XTI pin is supplied a 24.576MHz external clock and the output port is in
slave mode.
Note 14. It is 106 [mA] (typ) when the OMCLK/XTI pin is supplied a 24.576MHz external clock and the output port is in
slave mode.
MS1242-E-00
- 10 -
2010/09