AK4120 Datasheet, PDF (1/30 Pages) Asahi Kasei Microsystems – Sample Rate Converter with Mixer and Volume

ASAHI KASEI
[AK4120]
AK4120
Sample Rate Converter with Mixer and Volume
GENERAL DESCRIPTION
The AK4120 is a stereo asynchronous sample rate converter. The input sample rate range is from 8kHz
to 48kHz. The output sample rate is fixed at 32kHz, 44.1kHz, 48kHz or 96kHz. AK4120 includes a
digital mixer and digital volume control. Applications for this device include pro audio mastering,
consumer format conversion and desktop audio production and playback.
FEATURES
o Stereo Asynchronous Sample Rate Converter
o Digital Mixer
o Digital Volume
o Input Sample Rate Range (FSI): 8kHz to 48kHz
o Output Sample Rate (FSO): 32kHz, 44.1kHz, 48kHz and 96kHz
o Input to Output Sample Rate Ratio: FSO/FSI = 0.667 to 6
o THD+N: –113dB at 1kHz input
o I/F format: MSB justified (20bit), LSB justified (16bit/20bit), I²S
o Master clock: 256/512fs
o 3-wire Serial or I²C Bus µP I/F for mode setting
o Power Supply: 2.7 to 3.6V
SDTI1
ILRCK1
IBICK1
IMCLK1
IMCLK2
SDTI2
ILRCK2
IBICK2
Input#1
Audio
I/F
I2C
I2S
Sample
Rate
Converter
PDN
Volume#1
Input#2
Audio
I/F
Volume#2
Output
Audio
I/F
µ P I/F
I2MODE
CAD0
CSN/CAD1 CCLK/SDL CDTI/SDA
OMODE
VDD
VSS
TEST
OMCLK
SDTO
OLRCK
OBICK
MS0134-E-00
-1-
2002/1