ak7753 AKM Semiconductor, Inc., ak7753 Datasheet - Page 13

• Manufacturer Part Number: ak7753
• Description: Audio/hands Free Dsp With Stereo Codec
• Manufacturer: AKM Semiconductor, Inc.

(5) Switching Characteristcis
1) System Clock
MS0697-E-00-PB
Note 28. SYNC_I frequency and sampling rate (fs) should be the same.
Note 29. When BITCLK_I is 32fs, I/O interface format has some limitation.
Note 30. When BITCLK_I is a source of master clock, it should be 32 times fs correctly.
Note 31. When BITCLK_I uses as a source of master clock, it should be 64 times fs correctly.
(Ta=-20°C~85°C; AVDD=DVDD=3.0~3.6V)
Parameter
XTI
a) with a Crystal Oscillator:
b) with an External Clock
SYNC_I Frequency
BITCLK_I Frequency
a) CKM Mode 2/3
b) CKM Mode 4
c) CKM Mode 5/6
Frequency (CKM Mode 0/2)
Frequency (CKM Mode 1/3)
Duty Cycle
Frequency (CKM Mode 0/2)
Frequency (CKM Mode 1/3)
Clock Rise Time
Clock Fall Time
Clock rise time
Clock fall time
High Level Width
Low Level Width
Clock Rise Time
Clock Fall Time
Duty Cycle
Frequency (CKM Mode 2/3)
Duty Cycle
Frequency (CKM Mode 4)
Duty Cycle
Frequency (CKM Mode 5)
Frequency (CKM Mode 6)
CKM Mode 0-6
(Note
(Note
(Note
(Note
31)
29)
30)
28)
Symbol
tBCLKH
tBCLKL
fBCLK
fBCLK
fBCLK
fBCLK
fBCLK
fBCLK
fXTI
fXTI
fXTI
fXTI
tCR
tLR
tBR
tCF
tLF
tBF
Fs
- 13 -
11.0
7.35
0.23
2.75
min
120
120
230
460
40
22
32
40
40
40
-
-
-
-
11.2896
12.288
24.576
3.072
256
512
typ
50
50
32
50
64
50
8
max
12.4
24.8
258
516
3.2
3.1
60
48
64
60
60
60
6
6
6
6
6
6
-
-
-
-
Units
MHz
MHz
MHz
MHz
MHz
MHz
kHz
kHz
kHz
%
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
fs
fs
fs
[AK7753]
2008/01