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AK4124 데이터시트 PDF




Asahi Kasei Microsystems에서 제조한 전자 부품 AK4124은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 AK4124 기능
기능 192kHz / 24Bit High Performance Asynchronous SRC
제조업체 Asahi Kasei Microsystems
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AK4124 데이터시트, 핀배열, 회로
ASAHI KASEI
[AK4124]
AK4124
192kHz / 24Bit High Performance Asynchronous SRC
GENERAL DESCRIPTION
AK4124 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. By using the AK4124, the system can take very
simple configuration because the AK4124 has an internal PLL and does not need any master clock at
slave mode. Then the AK4124 is suitable for the application interfacing to different sample rates like
high-end Car Audio, DVD recorder, etc.
FEATURES
1. SRC
Asynchronous Sample Rate Converter
Input Sample Rate Range (fsi) : 8kHz 216kHz
Output Sample Rate (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
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
UNLOCK IMCLK
CMODE2 CMODE1 CMODE0
MS0288-E-01
-1-
2004/08




AK4124 pdf, 반도체, 판매, 대치품
ASAHI KASEI
[AK4124]
PIN/FUNCTION
No. Pin Name
1 FILT
2 AVSS
3 PDN
4 SMUTE
5 DITHER
6 PLL2
7 ILRCK
8 IBICK
9 SDTI
10 IDIF0
11 IDIF1
12 IDIF2
13 PLL0
14 PLL1
15 UNLOCK
16 OBIT0
17 OBIT1
18 IMCLK
19 CMODE0
20 CMODE1
21 CMODE2
22 ODIF0
23 ODIF1
24 SDTO
25 OBICK
26 OLRCK
27 OMCLK
28 DVDD
29 DVSS
30 AVDD
I/O Function
O PLL Loop Filter Pin
- Analog Ground Pin
Power-Down Mode Pin
I
“H”: Power up, “L”: Power down reset and initializes the control register.
Soft Mute Pin
I
“H” : Soft Mute, “L” : Normal Operation
Dither Enable Pin
I
“H” : Dither ON, “L” : Dither OFF
I PLL Mode Select 2 Pin
I/O Input Channel Clock Pin
I/O Audio Serial Data Clock Pin
I Audio Serial Data Input Pin
I Audio Interface Format 0 Pin for Input PORT
I Audio Interface Format 1 Pin for Input PORT
I Audio Interface Format 2 Pin for Input PORT
I PLL Mode Select 0 Pin
I PLL Mode Select 1 Pin
O Unlock Status Pin
I Bit Length Select 0 Pin for Output Data
I Bit Length Select 1 Pin for Output Data
I Master Clock Input Pin for Input PORT
I Clock Mode Select 0 Pin
I Clock Mode Select 1 Pin
I Clock Mode Select 2 Pin
I Audio Interface Format 0 Pin for Output PORT
I Audio Interface Format 1 Pin for Output PORT
O Audio Serial Data Output Pin for Output PORT
I/O Audio Serial Data Clock Pin for Output PORT
I/O Output Channel Clock Pin for Output PORT
I Master Clock Input Pin for Output PORT
- Digital Power Supply Pin, 3.0 3.6V
- Digital Ground Pin
- Analog Power Supply Pin, 3.0 3.6V
Note: All input pins should not be left floating.
MS0288-E-01
-4-
2004/08

4페이지










AK4124 전자부품, 판매, 대치품
ASAHI KASEI
[AK4124]
FILTER CHARACTERISTICS
(Ta=25°C; AVDD, DVDD=3.0 3.6V)
Parameter
Symbol
min
typ
max Units
Digital Filter
Passband 0.001dB 0.985 FSO/FSI 6.000
PB
0
0.4583FSI kHz
0.905 FSO/FSI < 0.985
PB
0
0.4167FSI kHz
0.714 FSO/FSI < 0.905
PB
0
0.3195FSI kHz
0.656 FSO/FSI < 0.714
PB
0
0.2852FSI kHz
0.536 FSO/FSI < 0.656
PB
0
0.2182FSI kHz
0.492 FSO/FSI < 0.536
PB
0
0.1982FSI kHz
0.452 FSO/FSI < 0.492
PB
0
0.1740FSI kHz
0.357 FSO/FSI < 0.452
PB
0
0.1212FSI kHz
0.324 FSO/FSI < 0.357
PB
0
0.1072FSI kHz
0.246 FSO/FSI < 0.324
PB
0
0.0595FSI kHz
0.226 FSO/FSI < 0.246
PB
0
0.0484FSI kHz
0.1667 FSO/FSI < 0.226
PB
0
0.0182FSI kHz
Stopband
0.985 FSO/FSI 6.000
SB 0.5417FSI
kHz
0.905 FSO/FSI < 0.985
SB 0.5021FSI
kHz
0.714 FSO/FSI < 0.905
SB 0.3965FSI
kHz
0.656 FSO/FSI < 0.714
SB 0.3643FSI
kHz
0.536 FSO/FSI < 0.656
SB 0.2974FSI
kHz
0.492 FSO/FSI < 0.536
SB 0.2732FSI
kHz
0.452 FSO/FSI < 0.492
SB 0.2510FSI
kHz
0.357 FSO/FSI < 0.452
SB 0.1983FSI
kHz
0.324 FSO/FSI < 0.357
SB 0.1822FSI
kHz
0.246 FSO/FSI < 0.324
SB 0.1366FSI
kHz
0.226 FSO/FSI < 0.246
SB 0.1255FSI
kHz
0.1667 FSO/FSI < 0.226
SB
0.0911FSI
kHz
Passband Ripple
PR
±0.01
dB
Stopband Attenuation
SA 113
dB
Group Delay
(Note 5)
GD
-
56
- 1/fs
Note 5. This value is the time from the rising edge of LRCK after data is input to rising edge of LRCK after data is output,
when LRCK for Output data corresponds with LRCK for Input.
(Ta=25°C; AVDD, DVDD=3.0 3.6V)
DC CHARACTERISTICS
Parameter
Symbol
min
typ
max Units
High-Level Input Voltage
VIH 70%DVDD
-
-V
Low-Level Input Voltage
VIL -
- 30%DVDD V
High-Level Output Voltage
Low-Level Output Voltage
Input Leakage Current
(Iout=400µA)
(Iout=400µA)
VOH
VOL
Iin
DVDD0.4
-
-
-
-
-
-V
0.4 V
±10 µA
Power Supplies
Power Supply Current
Normal operation (PDN pin = “H”)
FSI=FSO=48kHz at Slave Mode: AVDD=DVDD=3.3V
FSI=FSO=192kHz at Master Mode: AVDD=DVDD=3.3V
: AVDD=DVDD=3.6V
Power down (PDN pin = “L”)
(Note 6)
AVDD+DVDD
13 mA
55 mA
85 mA
10 100 µA
Note 6. All digital input pins are held DVSS.
MS0288-E-01
-7-
2004/08

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