AK7738VQ Datasheet, PDF (19/42 Pages) Asahi Kasei Microsystems – Multi DSP with 5ch ADC + 4ch DAC + 8ch SRC

[AK7738]
7. SRC
(Ta=25C; AVDD=LVDD=TVDD1=TVDD2=VDD33=3.3V; AVSS= DVSS1=DVSS2=DVSS3=0V;
Signal Frequency=1kHz; 24-bit Data; Measurement Frequency=20Hz ~ FSO/2)
Parameter
Symbol min
typ
max
Unit
Resolution
24
Bit
Input Sample Rate
FSI
8
192
kHz
(Note 27)
Output Sample Rate
FSO
8
192
kHz
THD+N (Input=1kHz, 0dBFS)
FSO/FSI=192kHz/48kHz
-113
dB
FSO/FSI=192kHz/44.1kHz
-113
dB
FSO/FSI=44.1kHz/48kHz
-112
dB
FSO/FSI=44.1kHz/96kHz
-111
dB
FSO/FSI=48kHz/44.1kHz
-112
-103
dB
FSO/FSI=48kHz/96kHz
-113
dB
FSO/FSI=48kHz/8kHz
-111
dB
FSO/FSI=16kHz/48kHz
-113
dB
FSO/FSI=16kHz/44.1kHz
-100
dB
FSO/FSI=8kHz/48kHz
-113
dB
FSO/FSI=8kHz/44.1kHz
-95
dB
FSO/FSI=48kHz/192kHz
SRC
FSO/FSI=44.1kHz/192kHz
-105
dB
-102
dB
Dynamic Range (Input=1kHz, -60dBFS)
FSO/FSI=192kHz/48kHz
113
dB
FSO/FSI=192kHz/44.1kHz
113
dB
FSO/FSI=44.1kHz/48kHz
113
dB
FSO/FSI=44.1kHz/96kHz
113
dB
FSO/FSI=48kHz/44.1kHz
108
113
dB
FSO/FSI=48kHz/96kHz
113
dB
FSO/FSI=48kHz/8kHz
113
dB
FSO/FSI=16kHz/48kHz
113
dB
FSO/FSI=16kHz/44.1kHz
113
dB
FSO/FSI=8kHz/48kHz
111
dB
FSO/FSI=8kHz/44.1kHz
114
dB
FSO/FSI=48kHz/192kHz
111
dB
FSO/FSI=44.1kHz/192kHz
110
dB
Dynamic Range
(Input=1kHz, -60dBFS, A-weighted)
FSO/FSI=44.1kHz/48kHz
115
dB
Ratio between Input and Output Sample Rate FSO/FSI 0.167
6
-
Note 27. Set FSI frequency of each operating SRC as the sum of the frequencies is below 384kHz. For
example, if the frequency of FSI is 96kHz, four SRCs can operate at the same time, if the
frequency of FSI is 192kHz, only two SRCs are allowed to operate at the same time.
015000122-E-00-PB
- 19 -
2015/01