AK4601VQ

Audio HUB CODEC with Digital Mixer

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Description

Advanced Audio Devices
VELVET SOUND

AK4601VQ The AK4601 is an Audio HUB CODEC including 5ch ADC, 6ch DAC and digital mixers. The analog input block consists of a 24-bit stereo ADC, a 24-bit stereo ADC with input selector and a monaural ADC, and the analog output block consists of 32-bit 6ch DAC. The transfer block for digital signals integrates a serial interface that supports Data BUS and TDM format, realizing an audio HUB function. It gives scalability to the device for both analog and digital signals. A car audio system that is capable of processing both sound and voice such as for hands-free function simultaneously can be realized by using the AK4601 with AKM’s multi-core DSP, the AK7707. The AK4601 is available in a space saving 48-pin LQFP package.

Key Features

□ ADC1: 24-bit Stereo ADC with MIC Gain Amplifiers
- Sampling Frequency:     fs=8kHz to 192kHz
- Channel Independent Analog Gain Amplifiers (0 to 18dB(2dB Step), 18 to 36dB(3dB step))
- Differential Input or Single-ended Input
- ADC Characteristics     S/N: 106dB (fs=48kHz, Differential Input, MIC Gain=0dB,)
- Channel Independent Digital Volume Control (+24 to -103dB, 0.5dB Step, Mute)
- Digital HPF for DC Offset Cancelling
- Low Noise MIC Power Output: 2ch
- 4 types of Digital Filter for Sound Color Selection
□ ADC2: 24-bit Stereo ADC with Input Selector
- Sampling Frequency:     fs=8kHz to 192kHz
- Analog Input Selector:     Differential Input x1 or Single-ended Input x2, Semi-Differential Input x1
- ADC Characteristics      S/N: 106dB (fs=48kHz, Differential Input)
- Channel Independent Digital Volume (+24 to -103dB, 0.5dB Step, Mute)
- Digital HPF for DC Offset Cancelling
- 4 types of Digital Filter for Sound Color Selection
□ ADCM: 24-bit Monaural ADC
- Sampling Frequency: fs=8kHz to 192kHz
- Differential Input or Single-ended Input
- ADC Characteristics     S/N: 106dB (fs=48kHz, Differential Input)
- Channel Independent Digital Volume (+24 to -103dB, 0.5dB Step, Mute)
- Digital HPF for DC Offset Cancelling
- 4 types of Digital Filter for Sound Color Selection
□ DAC: Advanced 32-bit DAC
- 2ch x3
- Sampling Frequency: fs=8kHz to 192kHz
- Single-ended Output
- DAC Characteristics     S/N: 108dB (fs=48kHz)
- Channel Independent Digital Volume Control (+12 to -115dB, 0.5dB Step, Mute)
- 4 types of Digital Filter for Sound Color Selection

□ Digital Interface:
- Digital Input Port:  max 20ch(16ch x 1Port, 2ch x 2Port) when TDM mode
- Digital Output Port: max 20ch(16ch x 1Port, 2ch x 2Port) when TDM mode
- Independent LRCK/BICK Input port x 2 Lines
- Data Format: MSB 32,24-bit / LSB 24,20,16-bit / I2S
- PCM Short / Long Frame Supported
- TDM Format Supported
□ Digital Mixer Circuit
□ Independent Digital Volume (+12 to -115dB, 0.5dB Step, Mute)
□ PLL Circuit
□ μP Interface: SPI(7MHz max), I2C-bus (max 1MHz, Fast Mode Plus)
□ Power Supply:
- Analog    AVDD:     3.0 to 3.6V (typ. 3.3V)
- Digital     LVDD:     3.0 to 3.6V (typ. 3.3V) (3.3V → 1.2V regulator integrated)
- I/F    TVDD: 1.7 to 3.6V (typ. 3.3V)
□ Operating Temperature Range: -40°C to 85°C
□ Package: 48-pin LQFP (7mm x 7mm, 0.5mm pitch)

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Block Diagram

Block Diagram

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