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AK4555 - Low Power & Small Package 20-bit CODEC

General Description

The AK4555 is a low voltage 20bit A/D & D/A converter for portable digital audio system.

In the AK4555, 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): 80dB@VDD=2.5V - Dynamic Range, S/N: 89dB@VDD=2.5V † 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 † Audio I/F format: MSB First, 2’s Compliment - ADC, DAC: I2S † Input/Output Voltage: 0.6 x VDD (=1.5Vpp@VDD=2.5V) † High Jitter Tolerance † Sampling Rate: 8kHz to 50kHz † Master Clock: 256fs/384fs/512fs/768fs (fs=8kHz to 50kHz) 1024fs (fs=8kHz.

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Other Datasheets by AKM (Asahi Kasei Microdevices)

Part Number Description
AK4550 Low Power & Small Package 16-bit CODEC
AK4551 LOW POWER & SMALL PACKAGE 20-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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www.DataSheet4U.com ASAHI KASEI [AK4555] Low Power & Small Package 20bit ∆Σ CODEC AK4555 GENERAL DESCRIPTION The AK4555 is a low voltage 20bit A/D & D/A converter for portable digital audio system. In the AK4555, 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 AK4555 are single-ended, therefore, any external filters are not required. The AK4555 is suitable for portable digital audio system, as the AK4555 is low power dissipation and a small package. FEATURES † HPF for DC-offset cancel (fc=3.4Hz) † Single-ended ADC - S/(N+D): 80dB@VDD=2.5V - Dynamic Range, S/N: 89dB@VDD=2.5V † Single-ended DAC - Digital de-emphasis for 32kHz, 44.1kHz, 48kHz sampling - S/(N+D): 85dB@VDD=2.