GENERAL DESCRIPTION
AK4584 is a high-performance 24-bit CODEC for 96kHz consumer audio and digital recording applications. The on-board analog-to-digital converter has an impressive dynamic range, thanks in part to AKM’s Enhanced Dual-Bit architecture. The DAC features the newly developed Advanced Multi-Bit architecture and achieves low out-of-band noise and high jitter tolerance through the use of Switched Capacitor Filter (SCF) technology

FEATURES
1. 24bit 2ch ADC
• fs: max 96kHz
• Single-end Input
• S/(N+D): 90dB
• Dynamic Range, S/N: 100dB
• Digital HPF for offset cancellation
• Input PGA with +18dB gain & 0.5dB step
• Input DATT with –72dB ATT
• I/F format: MSB justified or I2S
2. 24bit 2ch DAC
• fs: max 192kHz
• 24bit 8 times Digital Filter - Ripple: ±0.005dB, Attenuation: 75dB
• Single-end Output
• S/(N+D): 94dB
• Dynamic Range, S/N: 104dB
• De-emphasis for 32kHz, 44.1kHz, 48kHz sampling
• Digital Attenuator with soft-transition
• Soft Mute
• Zero Detect Function
• I/F format: MSB justified, LSB justified or I2S
3. 3 Outputs 24 bit 192kHz DIT
• 3-Channel Transmission Outputs (2 Through outputs & DIT Output)
• 40 bits Channel Status Buffer
4. 4 Inputs 24bit 192kHz DIR
• Supports AES3, IEC60958, S/PDIF, EIAJ CP1201
• Low Jitter Analog PLL
• PLL Lock Range: 32k ∼ 192kHz
• Clock Source: PLL or X’tal
• 4 Digital Receive Channel inputs
• Detect Function
    - Non-PCM Bit Stream Detection
    - DTS-CD Bit Stream Detection
    - Validity Flag Detection
    - Sampling Frequency Detection
    - Unlock & Parity Error Detection
• 40 bits Channel Status Buffer
• Burst Preamble bit Pc, Pd Buffer for Non-PCM bit Stream
5. Support External Audio Clock Input
• Master Clock Input
    - 256fs, 384fs, 512fs, 768fs (fs = 44.1kHz ∼ 48kHz)
    - 256fs, 384fs (fs = 88.2kHz ∼ 96kHz)
    - 128fs, 192fs (fs = 176.4kHz ∼ 192kHz)
6. Support Master & Slave Mode
7. Serial µP I/F: 4-wire serial
8. 5V operation
9. 3V Power Supply Pin for 3V I/F
10. 44pin LQFP Package
11. Ta: −10 to 70°C