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AK5558VN_16 Datasheet, PDF (1/70 Pages) Asahi Kasei Microsystems – 8-Channel Differential 32-bit ADC | |||
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[AK5558]
AK5558
8-Channel Differential 32-bit ïï 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 AK5558 integrates a 8-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
AK5558 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 8-to-4
mode, to 121 dB in 8-to-2 mode and to 124 dB in 8-to-1 mode.
2. Features
ï¨ Sampling Rate: 8 kHz-768 kHz
ï¨ Input: Full Differential Inputs
ï¨ S/(N+D): 106 dB
ï¨ DR: 115 dB (8-to-4 mode: 118 dB, 8-to-2 mode: 121 dB, 8-to-1 mode: 124 dB)
ï¨ S/N: 115 dB (8-to-4 mode: 118 dB, 8-to-2 mode: 121 dB, 8-to-1 mode: 124 dB))
ï¨ Internal Filter: Four types of LPF, Digital HPF
ï¨ Power Supply: 4.5-5.5 V (Analog), 1.7-1.98 V or 3.0-3.6 V (Digital)
ï¨ 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
ï¨ Cascade TDM I/F:
TDM512: fs= 48 kHz
TDM256: fs= 96 kHz or 48 kHz
TDM128: fs= 192 kHz, 96 kHz or 48 kHz
ï¨ Operation Mode: Master Mode & Slave Mode
ï¨ Detection Function: Input Overflow Flag
ï¨ Serial Interface: 3-wire Serial and I2C μP I/F (Pin setting is also available)
ï¨ Power Consumption: 261 mW (@AVDD= 5.0 V, TVDD= 3.3 V, fs= 48 kHz)
ï¨ Package: 64-pin QFN
015099850-E-00
-1-
2016/03
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