AK4118A Datasheet, PDF (1/56 Pages) Asahi Kasei Microsystems – High Feature 192kHz 24bit Digital Audio I/F Transceiver

[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 (I²C, 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