ak4124vf AKM Semiconductor, Inc., ak4124vf Datasheet - Page 11

• Manufacturer Part Number: ak4124vf
• Description: 192khz/ 24bit High Performance Asynchronous Src
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
T System Clock & Audio Interface Format for Input PORT
The input port works in master mode or slave mode. An internal system clock is created by the internal PLL using ILRCK
(Mode 0 2 of Table 2) or IBICK (Mode 4 7 of Table 2) in slave mode. The MCLK is not needed in slave mode. And
an internal system clock is created by IMCLK (Mode 8
pins select the master/slave and PLL mode. The PLL2-0 pins and IDIF2-0 pins should be controlled when PDN pin = “L”.
The IDIF2-0 pins select the audio interface format for the input port. The audio data is MSB first, 2’s compliment format.
The SDTI is latched on the rising edge of IBICK. Select the audio interface format when PDN pin = “L”. When in
BYPASS mode, both IBICK and OBICK are fixed to 64fs.
Note 1. PLL lock rage is changed by the value of R and C connected FILT pin. Refer to “PLL Loop Filter”.
Note 2. The IBCIK must be continuous except when the clocks are changed.
Note 3. IBCIK = 32fsi is supported only 16bit LSB justified and I
Note 4. Fixed to DVSS.
Note 5. Refer to “Soft Mute Operation” for Manual mode and Semi-Auto mode.
MS0288-E-01
Mode
Mode IDIF2
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
IMCLK = DVSS
ILRCK = Output
IBICK = Output
IMCLK = Input
ILRCK = Input
IBICK = Input
Master / Slave
H
H
H
H
L
L
L
L
Master
Slave
IDIF1
H
H
H
H
L
L
L
L
IDIF0
H
H
H
H
L
L
L
L
PLL2
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
Table 1. Input Audio Interface Format (Input PORT)
24/16bit, I
24/20bit, MSB justified
24bit, I
24bit, MSB justified
16bit, LSB justified
20bit, LSB justified
24bit, LSB justified
PLL1
Table 2. PLL Setting (Input PORT)
SDTI Format
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
OPERATION OVERVIEW
2
S Compatible
2
S Compatible
PLL0
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
- 11 -
15 of Table 2) in master mode. The PLL2-0 pins and IDIF2-0
16k
8k
8k
8k
8k
8k
8k
8k
8k
ILRCK Freq
8k
8k
8k
(Note 1)
(Note 2)
ILRCK
Output
2
Input
S Compatible.
216kHz
216kHz
216kHz
108kHz
216kHz
216kHz
108kHz
216kHz
96kHz
216kHz
54kHz
54kHz
Reserved
Output
IBICK
Input
Depending on
32fsi (Note 3)
IBICK Freq
IDIF2-0
128fsi
64fsi
64fsi
64fs
Reserved
IBICK Freq
48fsi or 32fsi
64fs
64fs
32fsi
40fsi
48fsi
48fsi
(Note 4)
(Note 4)
IMCLK
needed.
needed.
128fs
256fs
512fs
128fs
192fs
384fs
768fs
192fs
Not
Not
Master / Slave
Master
Slave
Semi-Auto
Semi-Auto
Semi-Auto
Semi-Auto
[AK4124]
SMUTE
(Note 5)
Manual
Manual
Manual
Manual
2004/08