[AK4127]
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, I
2
S 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
Power Supply
•
AVDD, DVDD: 3.0
∼
3.6V (typ. 3.3V)
Ta =
−40
∼
85°C
Package: 30pin VSOP
AK4124/5 Pin-compatible
IDIF2 IDIF1 IDIF0
AVDD AVSS DVDD DVSS ODIF1 ODIF0
OBIT1
OBIT0
IBICK
ILRCK
SDTI
Serial
Audio
I/F
Serial
Audio
I/F
OLRCK
OBICK
SDTO
OMCLK
PDN
PLL2
PLL1
PLL0
SMUTE
PLL
DITHER
2.
3.
4.
5.
SRC
UNLOCK
IMCLK
CMODE2 CMODE1 CMODE0
MS0593-E-01
-1-
2007/07