192kHz 24-Bit DIR with 2:1 Selector

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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.

*AC­3 is a trademark of Dolby Laboratories.

Key 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), I2S

• 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

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