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AK4552

3V 96kHz 24Bit ∆Σ CODEC

Asahi Kasei Microdevices 

ASAHI KASEI

[AK4552]

AK4552

3V 96kHz 24Bit ∆Σ CODEC

GENERAL DESCRIPTION

The AK4552 is a low voltage 24bit 96kHz A/D & D/A converter for digital audio system. In the AK4552,

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 AK4552 are single-ended, therefore, any external filters are not

required. As the package is 16pin TSSOP, the AK4552 is a suitable for minimizing system.

FEATURES

† HPF for DC-offset cancel (fc=3.4Hz@fs=44.1kHz)

† Single-ended ADC

- S/(N+D): 89dB@VA=3.0V

- Dynamic Range, S/N: 97dB@VA=3.0V

† Single-ended DAC

- Digital de-emphasis for 32kHz, 44.1kHz and 48kHz sampling

- S/(N+D): 88dB@VA=3.0V

- Dynamic Range, S/N: 100dB@VA=3.0V

† Audio I/F format: MSB First, 2’s Compliment

- ADC: 24bit MSB justified, DAC: 24bit LSB justified

† Input/Output Voltage: ADC = 1.85Vpp@VA=3.0V

DAC = 1.75Vpp@VA=3.0V

† Sampling Rate: 8kHz to 50kHz (Normal Speed)

50kHz to 100kHz (Double Speed, Double Speed Monitor)

100kHz to 200kHz (Quad Speed Monitor)

† Master Clock: 256fs, 384fs, 512fs or 768fs@Normal Speed

256fs or 384fs@Double Speed

128fs or 192fs@Double Speed Monitor

64fs, 96fs, 128fs or 192fs@Quad Speed Monitor

† Power Supply: 2.4 to 4.0V

† Power Supply Current: 14mA

† Ta = -40 to 85°C

† Very Small Package: 16pin TSSOP

LIN

RIN

VCOM

LOUT

ROUT

VA VSS

VD

∆Σ

Modulator

∆Σ

Modulator

Common Voltage

Decimation

Filter

Decimation

Filter

Clock

Divider

Serial I/O

Interface

LPF

∆Σ

Modulator

8X

Interpolator

∆Σ

8X

LPF

Modulator

Interpolator

MCLK

LRCK

BCLK

SDTO

SDTI

DEM0

DEM1

PDN

MS0055-E-01

-1-

2001/02

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