AK5556 Datasheet, PDF (1/69 Pages) Asahi Kasei Microsystems – 6-Channel Differential 32-bit ADC

[AK5556]
AK5556
6-Channel Differential 32-bit  ADC
1. General Description
The AK555x series 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.
2. Features
 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
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
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
015099857-E-00
-1-
2016/03