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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
AK4516A 3V 16-BIT ADC/DAC
AK4520A 100dB 20Bit Stereo ADC/DAC
AK4522 20-BIT STEREO ADC/DAC
AK4523 20-BIT STEREO ADC/DAC
AK4524 24-Bit 96kHz Audio CODEC
AK4525 20-BIT STEREO ADC/DAC
AK4527B High Performance Multi-channel Audio CODEC
AK4528 High Performance 24-Bit 96kHz Audio CODEC
AK4531A Audio CODEC

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.