AK4122VQ ETC [List of Unclassifed Manufacturers], AK4122VQ Datasheet - Page 24
AK4122VQ
Manufacturer Part Number
AK4122VQ
Description
24 BIT 96KHZ SRC WITH DIR
Manufacturer
ETC [List of Unclassifed Manufacturers]
Datasheet
1.AK4122VQ.pdf
(54 pages)
- Current page: 24 of 54
- Download datasheet (413Kb)
ASAHI KASEI
Bringing the PDN pin = “L” sets the AK4122 power-down mode and initializes the digital filter. When PDN pin = “L”,
the SDTO output is “L”. The AK4122 should be reset once by bringing PDN pin = “L” upon power-up. The SDTO is
valid from less than 100ms after the rising of PDN after clocks are supplied, and until then, outputs “L”. After the rising
of PDN pin, the SDTIO pin is input pin.
The recommended sequence of changing clocks is shown as Figure 14. The internal reset is executed when the input or
the output clocks are changed. The SDTO is placed “0” during reset. Within 100ms, the SDTO outputs normal data.
When the frequency transition occurs gradually without the phase change, the output data may have large distortion for
several seconds. Then, to output normal data within 100ms, a reset by PDN pin = “L” or PWN bit = “0” is recommended
when clocks are changed.
MS0267-E-03
System Reset
Sequence of changing clocks
Note 1. The data on SDTO may cause click noise. If SDTI or SDTIO is “0” from GD before PDN pin goes “L”,
Note 2. SMUTE can remove the unknown data.
External clocks
(internal state)
SDTO
PDN
(input / output port)
External clocks
(input port
PDN pin or
PWN bit
SDTIO / SDTO
SMUTE (Note2,
Att.Level
(internal state)
or output port)
recommended)
the data on SDTO keeps “0” then no unknown data is output.
-
0dB
∞
dB
state 1 (44.1kHz)
normal operation
normal data
Power-down
don’t care
1024/fso
Figure 14. Sequence of changing clocks
Power down
(unknown)
PLL locktime & fs detection
Note1
Figure 13. System Reset
< 100msec
“0” data
PLL locktime
& fs detection
< 100msec
state 2 (48kHz)
- 24 -
(stable)
1024/fso
normal operation
normal operation
normal data
normal data
Power-down
don’t care
“0” data
[AK4122]
2004/08
Related parts for AK4122VQ
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
256Kb FRAM Serial 3V Memory
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
INFRARED REMOTE CONTROL TRANSMITTER
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
Adjustable Shunt Regulator
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
STEERING DIODE (RAIL CLAMP) ARRAY
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
MICROCONTROLLER BLOCK DIAGRAM
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
1/4 Watt, High Linearity InGaP HBT Amplifier
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
GENERAL PURPOSE DUAL OPERATIONAL AMPLIFIERS
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
PLASTIC ENCAPSULATED DEVICES
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
Ceramic Seam Weld
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
STANDARD 8K X 8 SRAM
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
Single-Chip Voice Record/Playback Devices 60-, 75-, 90-, and 120-Second Durations
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
128K x 8 AutoStoreTM nvSRAM QuantumTrapTM CMOS Nonvolatile Static RAM
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
NON-VOLATILE MEMORY/NON-VOLATILE RAM
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
Thyristor-Thyristor Modules
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
Surface Mount Drum Core Power Inductors
Manufacturer:
ETC [List of Unclassifed Manufacturers]
Datasheet: