AK5556VN

ADCs/DACs - Special Purpose Overview

The AK5556VN is a 32-bit, 768 kHz sampling, differential input A/D converter for digital audio systems. It achieves 115 dB dynamic range and 106 dB S/(N+D) while maintaining low power consumption performance. The AK5556 integrates a 6-channel A/D converter, suitable for mixers and multi-channel recorders. Four types of digital filters are integrated and selectable according to the sound quality preference. The AK5556 can be easily connected to a DSP by supporting TDM audio formats. Additionally, it supports DSD output up to 11.2MHz. The channel summation improves the dynamic range to 118 dB in 6-to-3 mode, to 121 dB in 4-to-1 mode and to 122 dB in 6-to-1 mode.

ADCs/DACs - Special Purpose Feature Summary

• Sampling Rate: 8 kHz-768 kHz
• Input: Full Differential Inputs
• S/(N+D): 106 dB
• DR: 115 dB (6-to-3 mode: 118 dB, 4-to-1 mode: 121 dB, 6-to-1 mode: 122 dB)
• S/N: 115 dB (6-to-3 mode: 118 dB, 4-to-1 mode: 121 dB, 6-to-1 mode: 122 dB)
• Internal Filter: Four types of LPF, Digital HPF
• Power Supply: 4.5-5.5 V (Analog), 1.7-1.98 V or 3.0-3.6 V (Digital)
• Output Format: PCM mode: 24/32-bit MSB justified, I2S or TDM; DSD mode: DSD Native 64, 128, 256
• Cascade TDM I/F: TDM512: fs= 48 kHz; TDM256: fs= 96 kHz or 48 kHz; TDM128: fs= 192 kHz, 96 kHz or 48 kHz
• Operation Mode: Master Mode & Slave Mode
• Detection Function: Input Overflow Flag
• Serial Interface: 3-wire Serial and I2C μP I/F (Pin setting is also available)
• Power Consumption: 206 mW (@AVDD= 5.0 V, TVDD= 3.3 V, fs= 48 kHz)
• Package: 64-pin QFN

ADCs/DACs - Special Purpose Applications

• Mixers
• Multi-channel recorders

ADCs/DACs - Special Purpose Procurement Notes

Verify the package type is 64-pin QFN and ensure the analog supply voltage is within 4.5-5.5 V and digital supply is within 1.7-1.98 V or 3.0-3.6 V. Check the operating temperature range is -40°C to +105°C. Confirm the serial interface configuration matches the system requirements.

ADCs/DACs - Special Purpose Selection Notes

Consider the number of channels required, as this is a 6-channel ADC. Evaluate the need for channel summation modes to improve dynamic range. Ensure the system clock and audio interface format (PCM or DSD) are compatible with the selected digital filter type.

ADCs/DACs - Special Purpose Part Context

The AK5556VN is part of the AK555x series, which includes other models like AK5552VN, AK5554VN, and AK5558VN. These models share similar features but differ in the number of channels and specific performance characteristics.

ADCs/DACs - Special Purpose Replacement Considerations

AK5552VN, AK5554VN, AK5558VN

ADCs/DACs - Special Purpose FAQ

What is the maximum sampling rate supported by the AK5556VN?

The AK5556VN supports a maximum sampling rate of 768 kHz.

How many digital filter types are integrated into the AK5556VN?

The AK5556VN integrates four types of digital filters, which are selectable according to the sound quality preference.

What is the dynamic range of the AK5556VN in 6-to-1 mode?

In 6-to-1 mode, the dynamic range of the AK5556VN is improved to 122 dB.