ak4126 AKM Semiconductor, Inc., ak4126 Datasheet - Page 21

• Manufacturer Part Number: ak4126
• Description: 6ch 192khz / 24-bit Asynchronous Src
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
The C1 and R should be connected in series and attached between FILT pin and AVSS in parallel with C2. (See Figure 15,
Table 8 and Table 9) 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.
1. When using ILRCK
2. When using IBICK
MS0544-E-00
PLL Loop Filter
- Note. Smaller value can be selected for the capacitors (C1, C2) in case of ILRCK range from 16kHz to 192kHz.
- Note. Tolerance of R, C1, and C2 includes the temperature characteristics.
- Note. The IBCIK must be continuous except when the clocks are changed.
- Note. IBCIK = 32fsi is supported only 16bit LSB justified and I
- Note. Tolerance of R, C1, and C2 includes the temperature characteristics.
PLL2
PLL2
H
L
L
L
PLL1
PLL1
H
L
L
x
Table 9. PLL Loop Filter (IBICK Mode, “x”: Don’t care)
PLL0
PLL0
H
L
L
x
Table 8. PLL Loop Filter (ILRCK Mode)
16k ∼ 192kHz
16k ∼ 192kHz
8k ∼ 192kHz
8k ∼ 192kHz
8k ∼ 192kHz
Figure 15. PLL Loop Filter
8k ∼ 96kHz
AK4126
ILRCK
ILRCK
FILT
- 21 -
C1
R
AVSS
1.8k ± 5%
1.5k ± 5%
1.5k ± 5%
470 ± 5%
1k ± 5%
1k ± 5%
R [Ω]
R [Ω]
2
S Compatible.
C2
0.68 ± 30%
0.68 ± 30%
0.68 ± 30%
0.22 ± 30%
1.0 ± 30%
1.0 ± 30%
C1 [µF]
C1 [µF]
0.68 ± 30%
0.68 ± 30%
0.68 ± 30%
2.2 ± 30%
2.2 ± 30%
1.0 ± 30%
C2 [nF]
C2 [nF]
[AK4126]
2006/09