AK4632VN AKM [Asahi Kasei Microsystems], AK4632VN Datasheet - Page 22

• Manufacturer Part Number: AK4632VN
• Description: 16-Bit ?? Mono CODEC with ALC & MIC/SPK/Video-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
The M/S bit selects either master or slave modes. M/S bit = “1” selects master mode and “0” selects slave mode. When the
AK4632 is power-down mode (PDN pin = “L”) and exits reset state, the AK4632 is slave mode. After exiting reset state,
the AK4632 goes master mode by changing M/S bit = “1”.
When the AK4632 is used by master mode, FCK and BICK pins are a floating state until M/S bit becomes “1”. FCK and
BICK pins of the AK4632 should be pulled-down or pulled-up by about 100kΩ resistor externally to avoid the floating
state.
When PMPLL bit is “1”, a fully integrated analog phase locked loop (PLL) generates a clock that is selected by the
PLL3-0 and FS3-0 bits. The PLL lock time is shown in Table 4, whenever the AK4632 is supplied to a stable clocks after
PLL is powered-up (PMPLL bit = “0” → “1”) or sampling frequency changes.
1) Setting of PLL Mode
2) Setting of sampling frequency in PLL Mode.
MS0396-E-00
Others
Mode
When PLL2 bit is “1” (PLL reference clock input is MCKI pin), the sampling frequency is selected by FS2-0 bits as
defined in Table 5.
Master Mode/Slave Mode
PLL Mode
12
13
0
1
2
3
4
5
6
7
PLL3
Others
Mode
bit
1
1
10
11
14
15
0
0
0
0
0
0
0
0
0
1
2
3
4
5
6
7
Others
PLL2
bit
Table 5. Setting of Sampling Frequency at PLL2 bit = “1” and PMPLL bit = “1”
0
0
0
0
1
1
1
1
1
1
FS3 bit
0
0
0
0
0
0
0
0
1
1
1
1
PLL1
bit
0
0
1
1
0
0
1
1
0
0
Table 4. Setting of PLL Mode (*fs: Sampling Frequency)
PLL0
bit
0
1
0
1
0
1
0
1
0
1
FS2 bit
M/S bit
0
0
0
0
1
1
1
1
0
0
1
1
0
1
Table 3. Select Master/Salve Mode
Clock Input
Others
MCKI pin
MCKI pin
MCKI pin
MCKI pin
MCKI pin
MCKI pin
Reference
BICK pin
BICK pin
BICK pin
FCK pin
PLL
N/A
Pin
FS1 bit
0
0
1
1
0
0
1
1
1
1
1
1
Master Mode
Slave Mode
- 22 -
Mode
11.2896MHz
12.288MHz
Frequency
13.5MHz
12MHz
24MHz
27MHz
Input
16fs
32fs
64fs
1fs
FS0 bit
0
1
0
1
0
1
0
1
0
1
0
1
Default
R[Ω]
Sampling Frequency
6.8k
10k
10k
10k
10k
10k
10k
10k
10k
10k
R and C of
VCOC pin
11.025kHz
22.05kHz
7.35kHz
14.7kHz
29.4kHz
44.1kHz
12kHz
16kHz
24kHz
32kHz
48kHz
8kHz
N/A
220n
C[F]
4.7n
4.7n
4.7n
4.7n
4.7n
4.7n
4.7n
10n
10n
PLL Lock
160ms
(max)
40ms
Time
40ms
40ms
40ms
40ms
40ms
2ms
2ms
2ms
Default
[AK4632]
Default
2005/06