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AK4551 - LOW POWER & SMALL PACKAGE 20-BIT CODEC

General Description

The AK4551 is a low voltage 20bit A/D & D/A converter for portable digital audio system.

In the AK4551, the loss of accuracy form clock jitter is also improved by using SCF techniques for on-chip post filter.

Key Features

  • o HPF for DC-offset cancel (fc=3.4Hz) o Single-ended ADC - S/(N+D): 82dB@VDD=2.5V - Dynamic Range, S/N: 89dB@VDD=2.5V o Single-ended DAC - Digital de-emphasis for 32kHz, 44.1kHz, 48kHz sampling - S/(N+D): 85dB@VDD=2.5V - Dynamic Range, S/N: 92dB@VDD=2.5V o Audio I/F format: MSB First, 2’s Compliment (AK4519 compatible) - ADC: 20bit MSB justified - DAC: 20bit LSB justified o Input/Output Voltage: 0.6 X VDD (=1.5Vpp@VDD=2.5V) o High Jitter Tolerance o Sampling Rate: 8kHz to 50kHz o Master Clock: 2.

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Other Datasheets by AKM (Asahi Kasei Microdevices)

Part Number Description
AK4550 Low Power & Small Package 16-bit CODEC
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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 [AK4551] AK4551 Low Power & Small Package 20bit ∆Σ CODEC GENERAL DESCRIPTION The AK4551 is a low voltage 20bit A/D & D/A converter for portable digital audio system. In the AK4551, 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 AK4551 are single-ended, therefore, any external filters are not required. The AK4551 is suitable for portable digital audio system, as the AK4551 is lower power dissipation and a smaller package than AK4519. FEATURES o HPF for DC-offset cancel (fc=3.4Hz) o Single-ended ADC - S/(N+D): 82dB@VDD=2.5V - Dynamic Range, S/N: 89dB@VDD=2.5V o Single-ended DAC - Digital de-emphasis for 32kHz, 44.1kHz, 48kHz sampling - S/(N+D): 85dB@VDD=2.