[AK4129]
■ Compatibility with AK4126
(1) Specifications
Parameter
AK4126
AK4129
Stereo Inputs
Not Available
Available
Asynchronous Mode
Synchronous Mode Only
The INAS pin controls synchronous and
asynchronous modes.
Internal Clock
Internal PLL
Internal Regulator + Internal Oscillator
PLL reference clock select is not needed since
internal oscillator generates the clock.
#61 pin: A capacitor pin for the internal regulator.
The PLL2-0 pins must be set
according to the PLL reference clock.
#61 pin: A pin for external devices of
PLL filter.
Bypass Mode
Not Available
Available
Controlled by CM2-0 pins or BYPS bit.
Available
Controlled by CM2-0 pins
216kHz
Master Mode for
Output Ports
Maximum FSI and
FSO
Not Available
192kHz
Maximum IBICK and 64fs
OBICK Frequency
256fs
X’tal Oscillator
Master Clock Output
TDM Mode
Not Available
Not Available
Not Available
Available
Available
Available
Controlled by IDIF2-0 pins or IDIF2-0 bits (Input)
Controlled by TDM pin (Output)
Individual Setting Available
Individual setting is available by setting SMUTE3-1
bits in serial control mode.
Soft Mute
All channels are controlled together.
All channels are controlled together.
All channels are controlled together.
Not Available
De-emphasis Filter
Individual Setting Available
Individual setting is available by DEM31-30,
21-20, 11-10 bits in serial control mode.
Individual Setting Available
Individual setting is available by IDIF32-30, 22-20,
12-10 bits in serial control mode.
Available
Audio Format for
Input port.
I2C
Parallel and Serial control modes are selected by the
SPB pin.
UNLOCK pin
Detects PLL unlock.
FSI:FSO Ratio Change Detect
Detects over-current/voltage of the 1.8V outputs.
MS1173-E-01
2010/09
- 3 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
