ak5365 AKM Semiconductor, Inc., ak5365 Datasheet - Page 19

• Manufacturer Part Number: ak5365
• Description: 24-bit 96khz ?? Adc With Selector/pga/alc
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
[Input selector switching sequence]
The input selector should be changed after soft mute to avoid the switching noise of the input selector (Figure 6).
The CTRL pin sets the audio interface format and the type of serial control interface. When the CTRL pin is “L”, the audio
interface format is selected by the DIF bit and the serial control interface is 3-wire control mode. When the CTRL pin is
“H”, the audio interface format is fixed to 24bit I
Note: The audio interface format is ORed between the CTRL pin and DIF bit. When the CTRL pin is “L”, the audio
MS0164-E-01
Function of CTRL Pin
The period of (1) varies in the setting value of DATT. It takes 1024/fs to mute when DATT value is 0dB.
When changing channels, the input channel should be changed during (2). The period of (2) should be around 200ms
because there is some DC difference between the channels.
1. Enable the soft mute before changing channel.
2. Change channel.
3. Disable the soft mute.
interface format can be selected between 24bit MSB justified and 24bit I
pin is “H”, the audio interface format is fixed to 24bit I
S M U T E
Attenuation
Channel
DATT Level
CTRL pin
H
L
Figure 6. Input channel switching sequence example
-
Audio Interface Format
24bit, I
Table 8. CTRL pin Function
LIN 1 /RIN1
2
S compatible and the serial control interface is I
2
S Compatible
Note
(1)
- 19 -
2
S compatible.
Serial Control Interface
I
3-wire Control
2
(2)
C-Bus Control
2
S compatible by DIF bit. When the CTRL
LIN 2 /RIN2
(1)
2
C-bus control mode.
[AK5365
2002/08
]