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AK4519 - Low Power 20-bit ADC/DAC

General Description

AK4519 is low voltage 20bit A/D & D/A converter for portable digital audio system.

In the AK4519, the loss of accuracy form clock jitter is also improved by using SCF techniques for on-chip post filter.

Key Features

  • † HPF for DC-offset cancel (fc=3.4Hz) † Single-ended ADC - S/(N+D): 83dB - Dynamic Range, S/N: 89dB at 2.5V, 90dB at 3V † Single-ended DAC - 2nd order SCF + 2nd order CTF - Digital de-emphasis for 32kHz, 44.1kHz, 48kHz sampling - S/(N+D): 83dB - Dynamic Range, S/N: 92dB at 2.5V, 93dB at 3V † Audio I/F format - ADC:20bit MSB justified, DAC:20bit LSB justified, MSB First, 2's Compliment † High Jitter Tolerance † Sampling Rate: 8kHz to 50kHz † Master Clock: 256fs or 384fs or 512fs † Power Supply: 2.

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Other Datasheets by AKM (Asahi Kasei Microdevices)

Part Number Description
AK4516 3V 16BIT ADC/DAC
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ASAHI KASEI [AK4519] AK4519 Low Power 20 bit ∆Σ ADC&DAC with HPF GENERAL DESCRIPTION AK4519 is low voltage 20bit A/D & D/A converter for portable digital audio system. In the AK4519, the loss of accuracy form clock jitter is also improved by using SCF techniques for on-chip post filter. Analog signal input/output of the AK4519 are single-ended, therefore, external filter is not required. The AK4519 is low power dissipation and be able to powered-down ADC and DAC independently, so the AK4519 is suitable for portable digital audio system. FEATURES † HPF for DC-offset cancel (fc=3.4Hz) † Single-ended ADC - S/(N+D): 83dB - Dynamic Range, S/N: 89dB at 2.5V, 90dB at 3V † Single-ended DAC - 2nd order SCF + 2nd order CTF - Digital de-emphasis for 32kHz, 44.