Document
[AK5534]
AK5534
4-Channel Differential 32-bit ADC
1. General Description
The AK553x series is a 32-bit, 768 kHz sampling, differential input A/D converter for digital audio systems. It achieves 111 dB dynamic range and 103 dB S/(N+D) while maintaining low power consumption performance. The AK5534 integrates a 4-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 AK5534 can be easily connected to a DSP by supporting TDM audio formats. Additionally, it supports DSD output up to 11.2MHz. The channel summation mode improves the dynamic range performance by summing-up multiple channel A/D data and averaging. The dynamic range is improved to 114 dB in 4-to-2 mode and to 117 dB in 4-to-1 mode.
2. Features
Sampling Rate: 8 kHz-768 kHz Input: Full Differential Inputs S/(N+D): 103 dB DR: 111 dB (4-to-2 mode: 114 dB, 4-to-1 mode: 117 dB) S/N: 111 dB (4-to-2 mode: 114 dB, 4-to-1 mode: 117 dB) Internal Filter: Four types of LPF, Digital HPF Power Supply: 3.0-3.6 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 Maximized Slot Efficiency in TDM Mode by Optimal Data Placed Mode Cascade TDM I/F: TDM512: fs= 48 kHz TDM256: fs= 96 kHz or 48 kHz TDM126: 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: 96mW (@AVDD= 3.3 V, TVDD= 3.3 V, fs= 48 kHz) Package: 48-pin QFN
015099892-E-00
-1-
2016/03
[AK5534]
3. Table of Contents
1. General Description ............................................................................................................................ 1 2. Features .............................................................................................................................................. 1 3. Table of Contents................................................................................................................................ 2 4. Block Diagram..................................................................................................................................... 3
■ Block Diagram.................................................................................................................................... 3 5. Pin Configurations and Functions ...................................................................................................... 4
■ Pin Configurations ............................................................................................................................. 4 ■ Pin Functions ..................................................................................................................................... 5 ■ Handling of Unused Pin ..................................................................................................................... 7 6. Absolute Maximum Ratings................................................................................................................ 8 7. Recommended Operation Conditions ................................................................................................ 8 8. Analog Characteristics........................................................................................................................ 9 9. Filter Characteristics ......................................................................................................................... 10 ■ ADC Filter Characteristics (fs= 48 kHz) .......................................................................................... 10 ■ ADC Filter Characteristics (fs= 96 kHz) .......................................................................................... 12 ■ ADC Filter Characteristics (fs= 192 kHz) ........................................................................................ 14 ■ ADC Filter Characteristics (fs= 384 kHz) ........................................................................................ 16 ■ ADC Filter Characteristics (fs= 768 kHz) ........................................................................................ 17 10. DC Characteristics ........................................................................................................................ 18 11. Switching Characteristics .............................................................................................................. 19 ■ Timing Diagram ............................................................................................................................... 26 12. Functional Descriptions................................................................................................................. 31 ■ Digital Core Power Supply.......................................................