[AK4128A]
AK4128A
8ch 216kHz / 24-Bit Asynchronous SRC
GENERAL DESCRIPTION
The AK4128A is an 8ch digital sample rate converter (SRC). The input sample rate ranges from 8kHz to
216kHz. The output sample rate is from 8kHz to 216kHz. The AK4128A has an internal Oscillator and
does not need any external master clocks. It contributes simplifying a system configuration. The AK4128A
supports master mode and TDM data interface, enabling simultaneous input of asynchronous stereo
data. The AK4128A is suitable for the application interfacing to different sample rates such as
multi-channel high-end Car Audio Systems and DVD recorders.
FEATURES
•
8 channels input/output
•
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 I
2
S compatible and TDM
•
Oscillator for Internal Operation Clock
•
Clock for Master mode: 128/256/384/512/768fso
•
On-chip X’tal oscillator
•
Digital De-emphasis Filter (32kHz, 44.1kHz and 48kHz)
•
Soft Mute Function
•
SRC Bypass mode (Master/Slave)
•
μP
Interface: I²C bus
•
Power Supply: AVDD, DVDD1-4: 3.0
∼
3.6V (typ. 3.3V)
•
Ta =
−20 ∼
85°C (AK4128AEQ),
−40 ∼
85°C (AK4128AVQ)
•
Package: 64LQFP
MS1242-E-00
-1-
2010/09
AKM [ ASAHI KASEI MICROSYSTEMS ]
