ak4124vf AKM Semiconductor, Inc., ak4124vf Datasheet - Page 18

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

ASAHI KASEI
T PLL Loop Filter
The C1 and R should be connected in series and attached between FILT pin and AVSS in parallel with C2. Please be
careful the noise onto the FILT pin. When using IBICK, the value of an external element doesn't depend on the IBICK
input frequency.
[Input PORT in slave mode]
1. When using ILRCK
2. When using IBICK
[Input PORT in master mode]
1. When IMCLK is 256fs, 384fs, 512fs or 768fs, an external element is not needed.
2. When IMCLK is 128fs or 192fs in master mode, an external element is needed in case of using IBICK.
MS0288-E-01
- Note. The mode of between 16kHz and 216kHz the capacitor value (C1, C2) can be small.
Note. The IBCIK must be continuous except when the clocks are changed.
Note. IBCIK = 32fsi is supported only 16bit LSB justified and I
PLL2
PLL2
H
L
L
L
PLL1
PLL1
H
L
L
*
Table 7. PLL Loop Filter (IBICK Mode, *: Don’t care)
PLL0
PLL0
H
L
L
*
Table 6. PLL Loop Filter (ILRCK Mode)
16k
16k
8k
8k
8k
Figure 14. PLL Loop Filter
8k
AK4124
ILRCK
ILRCK
216kHz
216kHz
216kHz
96kHz
216kHz
216kHz
FILT
- 18 -
C1
R
1.8k
1.5k
1.5k
AVSS
470
1k
1k
R [ ]
R [ ]
2
S Compatible.
5%
5%
5%
5%
5%
5%
C2
0.68
0.68
0.68
0.22
1.0
1.0
C1 [ F]
C1 [ F]
30%
30%
30%
30%
30%
30%
0.68
0.68
0.68
2.2
2.2
1.0
C2 [nF]
C2 [nF]
30%
30%
30%
30%
30%
30%
[AK4124]
2004/08