[AK4118A]
AK4118A
High Feature 192kHz 24bit Digital Audio I/F Transceiver
GENERAL DESCRIPTION
The AK4118A is a digital audio transceiver supporting 192kHz, 24bits. The channel status decoder
supports both consumer and professional modes. The AK4118A can automatically detect a Non-PCM
bit stream. When combined with the multi channel codec (AK4626A or AK4628A), the two chips provide
a system solution for AC-3 applications. The dedicated pins or a serial µP I/F can control the mode
setting. The small package, 48pin LQFP saves the system space.
*AC-3 is a trademark of Dolby Laboratories.
FEATURES
AES3, IEC60958, S/PDIF, EIAJ CP1201 Compatible
Low jitter Analog PLL
PLL Lock Range: 8kHz
∼
192kHz
Clock Source: PLL or X'tal
8-channel Receiver input
2-channel Transmission output (Through output or DIT)
Auxiliary digital input
De-emphasis for 32kHz, 44.1kHz, 48kHz and 96kHz
Detection Functions
•
Non-PCM Bit Stream Detection
•
DTS-CD Bit Stream Detection
•
Sampling Frequency Detection
(32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz)
•
Unlock & Parity Error Detection
•
Validity Flag Detection
•
DAT Start ID Detection
Up to 24bit Audio Data Format
Audio I/F: Master or Slave Mode
42-bit Channel Status Buffer
Burst Preamble bit Pc and Pd Buffer for Non-PCM bit stream
Q-subcode Buffer for CD bit stream
Serial µP I/F (I
2
C, SPI)
Two Master Clock Outputs: 64fs/128fs/256fs/512fs
Operating Voltage: 2.7 to 3.6V with 5V tolerance
8GPIO Port
RX Data Input Detection
Small Package: 48pin LQFP
Ta: -10 to 70°C
MS1130-E-02
-1-
2009/12
AKM [ ASAHI KASEI MICROSYSTEMS ]
