[AK4117]
AK4117
Low Power 192kHz Digital Audio Receiver
GENERAL DESCRIPTION
The AK4117 is a S/PDIF AES/EBU receiver supporting sample rates up to 192kHz and resolution up to
24-bit. The integrated channel status decoder supports both consumer and professional modes. The
AK4117 can automatically detect a Non-PCM bit stream. Combining the AK4117 with a multi-channel
codec such as AKM’s AK4527B or AK4529 can create a complete AC-3 system. Mode settings can be
controlled via microprocessor serial interface. A low power mode is available for normal speed modes
and the small 24pin VSOP package saves board space.
*AC-3 is a trademark of Dolby Laboratories.
FEATURES
AES3, IEC60958, S/PDIF, EIAJ CP1201 Compatible
Low jitter Analog PLL
PLL Lock Range : 32kHz to 192kHz
Clock Source: PLL or X'tal
2-channel Receiver inputs Selector
Auxiliary digital input
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
Up to 24bit Audio Data Format
Audio I/F: Left justified, Right justified (16bit, 18bit, 20bit, 24bit), I
2
S
40-bit Channel Status Buffer
Burst Preamble bit Pc and Pd Buffer for Non-PCM bit stream
Q-subcode Buffer for CD bit stream
4-wire Serial µP I/F
Master Clock Output: 128fs/256fs/512fs
Operating Voltage: 2.7 to 3.6V
Small Package: 24pin VSOP
Ta: -40 to 85°C
MS0157-E-04
-1-
2010/08
AKM [ ASAHI KASEI MICROSYSTEMS ]
