AK4125_07 Datasheet, PDF (1/26 Pages) Asahi Kasei Microsystems – 192kHz / 24Bit High Performance Asynchronous SRC

[AK4125]
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