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AK4550 Datasheet Low Power & Small Package 16-bit Codec

Manufacturer: AKM (Asahi Kasei Microdevices)

Overview: ASAHI KASEI [AK4550] AK4550 Low Power & Small Package 16bit ∆Σ CODEC.

General Description

The AK4550 is a low voltage 16bit A/D & D/A converter for portable digital audio system.

In the AK4550, 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 AK4550 are single-ended, therefore, any external filters are not required.

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 (AK4518 compatible) - ADC: 16bit MSB justified - DAC: 16bit LSB justified o Input/Output Voltage: 0.6 X VDD (=1.5Vpp@VDD=2.5V) o High Jitter.

AK4550 Distributor