ak7780 AKM Semiconductor, Inc., ak7780 Datasheet - Page 17

• Manufacturer Part Number: ak7780
• Description: 24bit 5ch Adc & Src + Audio Dsp
• Manufacturer: AKM Semiconductor, Inc.

(5) Switching Characteristics
Note 31. LRCLK and sampling rate (fs) should match.
Note 32. When BITCLK_I uses as a resource of master clock, it should be 64 clocks correctly divided within 1fs.
MS0581-E-00-PB
[ #h means hexadecimal code. (#=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F)]
1) System Clock
(Ta = -40~85°C; AVDD=DVDD=3.0V~3.6V; DVDD18 = 1.7V~2.0V)
XTI
a) with a crystal oscillator:
CKM[2:0]=0h,2h
CKM[2:0]=1h,3h
b) with an external clock
Duty cycle
CKM[2:0]=0h,2h
CKM[2:0]=1h,3h
Clock rise time
Clock fall time
LRCLK_I frequency
Clock rise time
Clock fall time
BITCLK_I frequency
High level width
Low level width
Clock rise time
Clock fall time
a) CKM[2:0]=2h,3h
Duty cycle
CKM[2:0]=2h,3h
b) CKM[2:0]=4h,5h
Duty cycle
CKM[2:0]=4h
CKM[2:0]=5h
CKM[2:0] 0h,1h,2h,3h
Parameter
(
(
Note
Note
31)
32)
tBCLKH
tBCLKL
Symbol
fBCLK
fBCLK
fBCLK
fBCLK
fXTI
fXTI
fXTI
fXTI
tCR
tLR
tBR
tCF
tLF
tBF
fs
- 17 -
11.0
16.5
7.35
0.23
2.75
min
5.5
40
64
64
40
40
-
-
-
-
11.2896
16.9344
12.288
18.432
typ
50
48
64
50
64
50
max
12.4
18.6
6.2
3.1
6.2
60
96
60
60
6
6
6
6
6
6
-
-
-
-
2007/09
[AK7780]
MHz
MHz
MHz
MHz
MHz
MHz
MHz
Unit
kHz
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
fs
fs