|
|
|
부품번호 | AK4121A 기능 |
|
|
기능 | ASYNCHRONOUS SAMPLE RATE CONVERTER | ||
제조업체 | Asahi Kasei Microsystems | ||
로고 | |||
전체 19 페이지수
www.Da[tAaSKhe4et14U21.coAm]
AK4121A
Asynchronous Sample Rate Converter
GENERAL DESCRIPTION
The AK4121A is a stereo asynchronous sample rate converter. The input sample rate ranges from
8kHz to 96kHz. The output sample rate is 32kHz, 44.1kHz, 48kHz or 96kHz. Since the internal PLL
eliminates the need for a master clock in slave mode, the AK4121 simplifies the system design.
Therefore, the AK4121A is suitable for applications requiring multiple sample rates, such as Car Audio,
DVD recorders, and digital audio recording.
FEATURES
Stereo asynchronous sample rate converter
Input sample rate range (FSI): 8kHz to 96kHz
Output sample rate (FSO): 32kHz/44.1kHz/48kHz/96kHz
Input to output Sample rate ratio: FSO/FSI = 0.33 to 6
THD+N: –113dB
I/F format: MSB justified, LSB justified (24/20/16bit) and I2S
Clock for Master mode: 256/384/512/768fso
De-emphasis filter: 32kHz/44.1kHz/48kHz
SRC Bypass mode
Soft Mute function
Power Supply: VDD: 3.0 to 3.6V, TVDD: 3.0 to 5.5V (for input tolerant)
Ta: –40 to +85°C
PDN
DEM0 DEM1
SMUTE
TVDD VDD DVSS
SDTI
ILRCK
IBICK
Serial
Audio
I/F
De-em
filter
Sample
Rate
Converter
soft
mute
AVSS
FILT
PLL
Serial
Audio
I/F
(MCLK)
SDTO
OLRCK
OBICK
CMODE2
CMODE1
CMODE0
IDIF2 IDIF1 IDIF0
ODIF1 ODIF0
MS0337-E-02
-1-
2007/07
www.Da[tAaSKhe4et14U21.coAm]
(AVSS=DVSS=0V; Note 1)
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
min
Power Supplies: Core
VDD
−0.3
Input Buffer
TVDD
−0.3
|AVSS-DVSS| (Note 1)
Δ GND
Input Current, Any Pin Except Supplies
IIN -
Input Voltage
VIN −0.3
Ambient Temperature (Power applied)
Ta −40
Storage Temperature
Tstg −65
max
4.6
6.0
0.3
±10
TVDD+0.3
85
150
Note 1. All voltages with respect to 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 2)
Parameter
Symbol
min
typ
Power Supplies: Core
VDD
3.0
3.3
Input Buffer
TVDD
VDD
5
Note 2. All voltages with respect to ground.
max Units
3.6 V
5.5 V
SRC PERFORMANCE
(Ta=−40∼85°C; VDD=3.0∼3.6V; TVDD=3.0~5.5V; data=20bit; measurement bandwidth=20Hz~FSO/2;
unless otherwise specified.)
Parameter
Symbol min typ max
Resolution
20
Input Sample Rate
FSI 8
96
Output Sample Rate
FSO 32
96
Dynamic Range (Input= 1kHz, −60dBFS, Note 3)
FSO/FSI=44.1kHz/48kHz
FSO/FSI=48kHz/44.1kHz
- 114 -
- 114 -
FSO/FSI=32kHz/48kHz
FSO/FSI=96kHz/32kHz
- 114 -
- 115 -
Worst Case (FSO/FSI=48kHz/96kHz)
112 -
-
Dynamic Range (Input= 1kHz, −60dBFS, A-weighted, Note 3)
FSO/FSI=44.1kHz/48kHz
- 117 -
THD+N
(Input= 1kHz, 0dBFS, Note 3)
FSO/FSI=44.1kHz/48kHz
FSO/FSI=48kHz/44.1kHz
FSO/FSI=32kHz/48kHz
FSO/FSI=96kHz/32kHz
Worst Case (FSO/FSI=48kHz/8kHz)
- −113 -
- −112 -
- −113 -
- −111 -
- - −103
Ratio between Input and Output Sample Rate
(FSO/FSI, Note 4, Note 5)
FSO/FSI 0.33
6
Units
Bits
kHz
kHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
-
Note 3. Measured by Rohde & Schwarz UPD04, Rejection Filter= wide, 8192point FFT.
Note 4. The “0.33” is the ratio of FSO/FSI when FSI is 96kHz and FSO is 32kHz
Note 5. The “6” is the ratio when FSI is 8kHz and FSO is 48kHz.
MS0337-E-02
-4-
2007/07
4페이지 ■ Timing Diagram
MCLK
LRCK
BICK
www.Da[tAaSKhe4et14U21.coAm]
1/fCLK
tCLKH
tCLKL
1/fs
VIH
VIL
dCLK=tCLKH x fCLK, tCLKL x fCLK
VIH
VIL
tBCK
tBCKH
tBCKL
Figure 1. Clock Timing
VIH
VIL
LRCK
BICK
SDTO
SDTI
tBLR
tLRB
VIH
VIL
tLRS
tSDS
tSDH
VIH
VIL
tBSD
70%VDD
30%VDD
Figure 2. Audio Interface Timing at Slave Mode
VIH
VIL
MS0337-E-02
-7-
2007/07
7페이지 | |||
구 성 | 총 19 페이지수 | ||
다운로드 | [ AK4121A.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
AK4121 | ASYNCHRONOUS SAMPLE RATE CONVERTER | Asahi Kasei Microsystems |
AK4121A | ASYNCHRONOUS SAMPLE RATE CONVERTER | Asahi Kasei Microsystems |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |