AK4127 PDF даташит
Спецификация AK4127 изготовлена «Asahi Kasei Microsystems» и имеет функцию, называемую «192kHz / 24Bit High Performance Asynchronous SRC». |
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Детали детали
Номер произв | AK4127 |
Описание | 192kHz / 24Bit High Performance Asynchronous SRC |
Производители | Asahi Kasei Microsystems |
логотип |
29 Pages
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www.Data[SAheKet44U1.2co7m]
AK4127
192kHz / 24Bit High Performance Asynchronous SRC
GENERAL DESCRIPTION
The AK4127 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 AK4127 has an internal PLL and does not need any master clock at slave mode. The
AK4127 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 (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, I2S compatible and TDM
• PLL for Internal Operation Clock
• Clock for Master mode: 128/192/256/384/512/768fsi, 128/256/384/512/768fso
• SRC Bypass mode (Master/Slave)
• 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. AK4124/5 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
MS0593-E-01
UNLOCK IMCLK
CMODE2 CMODE1 CMODE0
-1-
2007/07
No Preview Available ! |
www.Data[SAheKet44U1.2co7m]
TABLE OF CONTENTS
GENERAL DESCRIPTION............................................................................................................................................... 1
FEATURES........................................................................................................................................................................ 1
■ Ordering Guide ........................................................................................................................................................... 3
Pin Layout ..................................................................................................................................................................... 3
■ Compatibility with AK4125........................................................................................................................................ 4
PIN/FUNCTION ................................................................................................................................................................ 5
■ Handling of Unused pins............................................................................................................................................. 6
ABSOLUTE MAXIMUM RATINGS ............................................................................................................................... 6
RECOMMENDED OPERATING CONDITIONS ............................................................................................................ 6
SRC CHARACTERISTICS ............................................................................................................................................... 7
FILTER CHARACTERISTICS ......................................................................................................................................... 8
DC CHARACTERISTICS ................................................................................................................................................. 9
SWITCHING CHARACTERISTICS ................................................................................................................................ 9
■ Timing Diagram ........................................................................................................................................................ 11
OPERATION OVERVIEW ............................................................................................................................................. 13
■ System Clock & Audio Interface Format for Input PORT........................................................................................ 13
■ System Clock & Audio Interface Format for Output PORT ..................................................................................... 15
■ Cascade TDM Mode ................................................................................................................................................. 18
■ Soft Mute Operation.................................................................................................................................................. 19
■ Dither ........................................................................................................................................................................ 20
■ System Reset ............................................................................................................................................................. 20
■ Internal Reset Function for Clock Change ................................................................................................................ 21
■ Sequence of Changing Clocks .................................................................................................................................. 21
■ UNLOCK pin ............................................................................................................................................................ 21
■ PLL Loop Filter......................................................................................................................................................... 22
SYSTEM DESIGN........................................................................................................................................................... 23
PACKAGE ....................................................................................................................................................................... 27
■ Material & Lead finish .............................................................................................................................................. 27
MARKING ....................................................................................................................................................................... 28
REVISION HISTORY ..................................................................................................................................................... 28
IMPORTANT NOTICE ................................................................................................................................................... 29
MS0593-E-01
-2-
2007/07
No Preview Available ! |
■ Ordering Guide
AK4127VF
AKD4127
■ Pin Layout
www.Data[SAheKet44U1.2co7m]
−40 ∼ +85°C
30pin VSOP (0.65mm pitch)
Evaluation Board for AK4127
FILT
AVSS
PDN
SMUTE
DITHER
PLL2
ILRCK
IBICK
SDTI
IDIF0
IDIF1
IDIF2
PLL0
PLL1
UNLOCK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Top View
30 AVDD
29 DVSS
28 DVDD
27 OMCLK
26 OLRCK
25 OBICK
24 SDTO
23 ODIF1
22 ODIF0
21 CMODE2
20 CMODE1
19 CMODE0
18 IMCLK
17 OBIT1
16 OBIT0
MS0593-E-01
-3-
2007/07
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