ak4113 AKM Semiconductor, Inc., ak4113 Datasheet - Page 16

• Manufacturer Part Number: ak4113
• Description: 192khz 24bit Dir With 6 1 Selector
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
The CM0 and CM1 pins (or bits) select the clock source and the data source of SDTO. In Mode 2, the clock source is
switched from PLL to X'tal when PLL goes unlock state. In Mode3, the clock source is fixed to X'tal, but PLL is also
operating and the recovered data such as C bits can be monitored. For Mode2 and 3, it is recommended that the
frequency of X’tal is different from the recovered frequency from PLL.
The AK4113 has two clock outputs, MCKO1 and MCKO2. MCKO2 has two modes. These modes can be selected by the
XMCK bit.
1) When XMCK bit = “0” and BCU bit = “0”
This mode is compatibile AK4112B and AK4114. These clocks are derived from either the recovered clock or the X'tal
oscillator. The frequencies of the master clock outputs (MCKO1 and MCKO2) are set by OCKS0 and OCKS1 as shown
in Table 2. The 512fs clock will not operate when the sampling frequency is 96kHz or 192kHz. The 256fs clock will not
operate when the sampling frequency is 192kHz.
2) When XMCK bit “1” and BCU bit = “0”
MCKO2 outputs the input clock of the XTI pin when BCU bit = “0” and XMCK bit = “1”. The settings of CM1-0 and
OCKS1-0 bits are ignored. The output frequency can be set by the DIV bit. MCKO1 outputs a clock that is selected by
the CM1-0 bits and OCKS1-0 bits.
MS0349-E-02
Clock Operation Mode
Master Clock
Note: When the X’tal is not used as clock comparison for fs detection (i.e. XTL1-0 bit = “11”), the X’tal is OFF.
No.
Mode
0
1
2
3
0
1
2
3
OCKS1
0
0
1
1
CM1
0
0
1
1
XMCK bit
OCKS0
CM0
1
1
0
1
0
1
0
1
0
1
ON: Oscillation (Power-up), OFF: STOP (Power-Down)
UNLOCK
DIV bit
Table 3. Select output frequency of MCKO2
MCKO1 pin
Table 2. Master Clock Output Frequency
Table 1. Clock Operation Mode Select
0
1
256fs
256fs
512fs
128fs
0
1
-
-
-
MCKO2 Clock Source
PLL
OFF
ON
ON
ON
ON
MCKO2 pin
- 16 -
256fs
128fs
256fs
X’tal
X’tal
64fs
ON (Note)
X'tal
ON
ON
ON
ON
256fs
256fs
512fs
128fs
X’tal
Clock source
MCKO2 Frequency
X'tal
X'tal
X'tal
PLL
PLL
x 1/2
x 1
fs (max)
108 kHz
108 kHz
216 kHz
54 kHz
SDTO
RX
DAUX
RX
DAUX
DAUX
Default
Default
[AK4113]
2005/08