ak7714 AKM Semiconductor, Inc., ak7714 Datasheet - Page 14

• Manufacturer Part Number: ak7714
• Description: 20-bit Audio Codec With Dsp And Delay Ram
• Manufacturer: AKM Semiconductor, Inc.

[ASAHI KASEI]
(5) Switching characteristics
1) System clock
2) Reset
M0018-E-00
(AVDD = AVB, DVB, DVDD = 5.0 V±5%, Ta = 25 C, CL = 20 pF)
(AVDD = AVB, DVB, DVDD = 5.0 V ±5%, Ta = 25 C, CL = 20 pF)
Note 1. "L" is acceptable when power is turned on.
Master clock (XTI)
a) With a crystal oscillator:
b)With an external clock input:
LRCLK Sampling frequency
BITCLK
INIT RESET
DSP RESET
CODEC RESET
Slave mode: High level width
Slave mode: Low level width
Slave mode: Clock rise time
Slave mode: Clock fall time
Slave mode: Clock rise time
Slave mode: Clock fall time
Duty factor ( 18.432 MHz)
256 fs: Frequency
384 fs: Frequency
512 fs: Frequency
Clock rise time
Clock fall time
256 fs: Frequency
384 fs: Frequency
512 fs: Frequency
: High level width
: Low level width
: High level width
: Low level width
: High level width
: Low level width
Parameter
Parameter
( > 18.432MHz )
(Note 1)
(Note 1)
(Note 1)
Symbol
fMCLK
fMCLK
fMCLK
fMCLK
tMCLKH
tMCLKL
fMCLK
tMCLKH
tMCLKL
fMCLK
tMCLKH
tMCLKL
tCR
tCF
fs
tLR
tLF
fBCLK
tBCLKH
tBCLKL
tBR
tBF
Symbol
tRST
tRST
tRST
- 14 -
12.288
16.384
12.288
16.384
11.0
11.0
Min
100
100
Min
150
150
150
40
45
30
30
20
20
17
17
32
48
11.2896
16.9344
22.5792
11.2896
16.9344
22.5792
44.1
Typ
Typ
50
50
64
1
22.5792
22.5792
12.288
18.432
12.288
18.432
Max
Max
60
55
48
10
10
6
6
6
6
[AK7714]
Unit
Unit
‘98/07
MHz
MHz
MHz
MHz
MHz
MHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
fs
fs