AK7738VQ Datasheet, PDF (20/42 Pages) Asahi Kasei Microsystems – Multi DSP with 5ch ADC + 4ch DAC + 8ch SRC

[AK7738]
8. FSCONV
(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
44.1
48
kHz
Output Sample Rate
FSO
8
16
kHz
THD+N (Input=1kHz, 0dBFS)
FSO/FSI=16kHz/48kHz
-114
dB
FSO/FSI=16kHz/44.1kHz
-95
dB
FSO/FSI=8kHz/48kHz
-115
dB
FSCONV
FSO/FSI=8kHz/44.1kHz
Dynamic Range (Input=1kHz, -60dBFS)
-97
dB
FSO/FSI=16kHz/48kHz
114
dB
FSO/FSI=16kHz/44.1kHz
114
dB
FSO/FSI=8kHz/48kHz
114
dB
FSO/FSI=8kHz/44.1kHz
114
dB
Dynamic Range
(Input=1kHz, -60dBFS, A-weighted)
FSO/FSI=8kHz/48kHz
117
dB
Ratio between Input and Output Sample Rate FSO/FSI 0.167
0.363
-
■ Power Consumption
(Ta=25C; AVDD=3.0~3.6V(typ=3.3V, max=3.6V); LVDD=3.0~3.6V(typ=3.3V, max=3.6V);
TVDD1=1.7~3.6V(typ=3.3V, max=3.6V); TVDD2=1.7~3.6V (typ=3.3V, max=3.6V); VDD33=3.0~3.6V
(typ=3.3V, max=3.6V); AVSS= DVSS1=DVSS2=DVSS3=0V; fs=192kHz; BICK=64fs;
SDOUT1~6/LRCK1~5/BICK1~5=Output; C_L=20pF)
Parameter
Symbol
min
typ
max
Unit
AVDD
26
37
mA
Power-Up (PDN pin= “H”)
(Note 28)
LVDD
TVDD1
TVDD2
70
140
mA
1.6
2.4
mA
1.6
2.4
mA
VDD33
4
6
mA
AVDD
0.01
mA
LVDD
0.01
mA
Power-Down (PDN pin= “L”)
TVDD1
0.01
mA
TVDD2
0.01
mA
VDD33
0.01
mA
Note 28. The current of LVDD changes depending on the system frequency and contents of DSP program.
015000122-E-00-PB
- 20 -
2015/01