AK7770EQ Datasheet, PDF (12/22 Pages) Asahi Kasei Microsystems – Audio DSP with Multi-Channel Audio CODEC

[AK7770]
■ SRC (SRC1, SRC2)
(Ta=-10°C ~70°C; AVDD=HVDD=DVDD=3.3V; DVDD18=1.8V; VSS1=VSS2=VSS3=0V;
Input signal frequency = 1kHz; measurement bandwidth = 20Hz to FSO/2, fs=48kHz)
Parameter
Symbol min typ
Resolution
Input Sample Rate
FSI
32
Output Sample Rate
FSO
-
48
THD+N (Input= 1kHz, 0dBFS)
FSO/FSI=48kHz/44.1kHz
-112
FSO/FSI=48kHz/32kHz
-112
Dynamic Range (Input= 1kHz, -60dBFS)
FSO/FSI=48kHz/44.1kHz
113
FSO/FSI=48kHz/32kHz
113
Dynamic Range (Input= 1kHz, -60dBFS, A-weighted)
FSO/FSI=48kHz/32kHz
115
Ratio between Input and Output Sample Rate
FSO/FSI 0.98
max Units
24 Bits
48 kHz
-
kHz
dB
dB
dB
dB
dB
1.5
-
DC CHARACTERISTICS
(Ta=-10°C ~70°C; AVDD=HVDD=DVDD=3.0~3.6V, DVDD18=1.7~1.9V, VSS1 = VSS2 = VSS3=0V)
Parameter
Symbol
min
typ
max
High level input voltage
(Note 14) VIH 80%DVDD
Low level input voltage
(Note 14) VIL
20%DVDD
SCL, SDA high level input voltage
VIH 70%DVDD
SCL, SDA low level input voltage
VIL
30%DVDD
HDT high level input voltage
VIH 85%HVDD
HDT low level input voltage
VIL
45%HVDD
High level output voltage Iout=-100μA
VOH DVDD-0.5
Low level output voltage Iout=100μA
VOL
0.5
(Note 15)
SDA low level output voltage Iout=3mA
VOL
0.4
Input leakage current
(Note 16)
Iin
±10
Input leakage current pull-down pin (Note 17)
Iid
22
Input leakage current XTI pin
Iix
26
Units
V
V
V
V
V
V
V
V
V
μA
μA
μA
Note 14. SCL, SDA and HDT pins are not included.
Note 15. The SDA pin is not included
Note 16. Pull-down pins and the XTI pin are not included.
Note 17. Pull-down pins (Typ 150k) and TESTI
[Description rule]
Regarding the input/output levels in the text, the low level will be represented as “L”, and the high level as “H”.
In principle, “0” and “1” will be used to represent the bus (serial/parallel) such as registers.
##h means hexadecimal code. (#=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F)
MS0699-E-01-PB
- 12 -
2008/06