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PDF AK4125 Data sheet ( Hoja de datos )
| Número de pieza | AK4125 | |
| Descripción | 192kHz / 24Bit High Performance Asynchronous SRC | |
| Fabricantes | Asahi Kasei Microsystems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AK4125 (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
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www.Data[SAheKet44U1.2co5m]
AK4125
192kHz / 24Bit High Performance Asynchronous SRC
GENERAL DESCRIPTION
The AK4125 is a stereo digital sample rate converter (SRC). The input sample rate ranges from 8kHz to
216kHz. The output sample rate is from 8kHz to 216kHz. The system can take very simple configuration
because the AK4125 has an internal PLL and does not need any master clock at slave mode. The
AK4125 is suitable for the application interfacing to different sample rates such as high-end Car Audio
and DVD recorder.
FEATURES
1. SRC
• Asynchronous Sample Rate Converter
• Input Sample Rate Range (fsi): 8kHz ∼ 216kHz
• Output Sample Rate Range (fso): 8kHz ∼ 216kHz
• Input to Output Sample Rate Ratio: 1/6 to 6
• THD+N: −130dB
• Dynamic Range: 140dB (A-weighted)
• I/F format: MSB justified, LSB justified and I2S compatible
• PLL for Internal Operation Clock
• Clock for Master mode: 128/192/256/384/512/768fsi, 128/192/256/384/512/768fso
• SRC Bypass mode
• Soft Mute Function
2. Power Supply
• AVDD, DVDD: 3.0 ∼ 3.6V (typ. 3.3V)
3. Ta = −40 ∼ 85°C
4. Package: 30pin VSOP
5. AK4124 Pin-compatible
IDIF2 IDIF1 IDIF0 AVDD AVSS DVDD DVSS ODIF1 ODIF0
IBICK
ILRCK
SDTI
PLL2
PLL1
PLL0
Serial
Audio
I/F
PLL
SRC
Serial
Audio
I/F
OBIT1
OBIT0
OLRCK
OBICK
SDTO
OMCLK
PDN
SMUTE
DITHER
MS0379-E-04
UNLOCK IMCLK
CMODE2 CMODE1 CMODE0
-1-
2007/07
1 page  
www.Data[SAheKet44U1.2co5m]
■ Handling of Unused pins
The unused digital I/O pins should be processed appropriately as below.
Classification
Analog
Digital
Pin Name
FILT
SMUTE, DITHER
IMCLK, OMCLK
UNLOCK
Setting
This pin should be open.
These pins should be connected to DVSS.
These pins should be connected to DVSS in slave mode.
This pin should be open.
(AVSS, DVSS=0V; Note 1)
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
min
Power Supplies: Analog
AVDD
−0.3
Digital
DVDD
−0.3
|AVSS − DVSS| (Note 2) ΔGND
-
Input Current, Any Pin Except Supplies IIN -
Digital Input Voltage
VIND
−0.3
Ambient Temperature (Power applied)
Ta −40
Storage Temperature
Tstg −65
max
4.6
4.6
0.3
±10
DVDD+0.3
85
150
Note 1. All voltages with respect to ground.
Note 2. AVSS and DVSS must be connected to the same ground.
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Units
V
V
V
mA
V
°C
°C
RECOMMENDED OPERATING CONDITIONS
(AVSS, DVSS=0V; Note 1)
Parameter
Symbol min typ
Power Supplies
Analog
AVDD 3.0 3.3
(Note 3)
Digital
DVDD 3.0 3.3
max
3.6
AVDD
Note 1. All voltages with respect to ground.
Note 3. The power up sequence between AVDD and DVDD is not important.
WARNING: AKEMD assumes no responsibility for the usage beyond the conditions in this datasheet.
Units
V
V
MS0379-E-04
-5-
2007/07
5 Page 
www.Data[SAheKet44U1.2co5m]
LRCK
BICK
SDTO
tMBLR
dBCK
tBSD
tSDS
tSDH
SDTI
Audio Interface Timing (Master mode)
Note: BICK shows IBICK and OBICK, LRCK shows ILRCK and OLRCK.
PDN
tPD
Power Down & Reset Timing
50%DVDD
50%DVDD
50%DVDD
VIH
VIL
VIL
MS0379-E-04
- 11 -
2007/07
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet AK4125.PDF ] | |
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