AK4381VT

AK4381VT Datasheet

[AK4381]

Part	Datasheet
AK4381VT	AK4381VT (pdf)

PDF Datasheet Preview
ASAHI KASEI [AK4381] AK4381 108dB 192kHz 24-Bit 2ch DAC The AK4381 offers the perfect mix for cost and performance based audio systems. Using AKM's multi bit architecture for its modulator the AK4381 delivers a wide dynamic range while preserving linearity for improved THD+N performance. The AK4381 has full differential SCF outputs, removing the need for AC coupling capacitors and increasing performance for systems with excessive clock jitter. The 24 Bit word length and 192kHz sampling rate make this part ideal for a wide range of applications including DVD-Audio. The AK4381 is offered in a space saving 16pin TSSOP package. FEATURES Sampling Rate Ranging from 8kHz to 192kHz 128 times Oversampling Normal Speed Mode 64 times Oversampling Double Speed Mode 32 times Oversampling Quad Speed Mode 24-Bit 8 times FIR Digital Filter On chip SCF Digital de-emphasis for 32k, 44.1k and 48kHz sampling Soft mute Digital Attenuator Linear 256 steps I/F format 24-Bit MSB justified, 24/20/16-Bit LSB justified or I2S Master clock 256fs, 384fs, 512fs or 768fs Normal Speed Mode 128fs, 192fs, 256fs or 384fs Double Speed Mode 128fs, 192fs Quad Speed Mode THD+N -94dB Dynamic Range 108dB High Tolerance to Clock Jitter Power supply to 5.25V Very Small Package 16pin TSSOP 6.4mm x 5.0mm AK4382A Pin Compatible MCLK CSN CCLK CDTI LRCK BICK SDTI uP Interface De-emphasis Control Clock Divider Audio Data Interface 8X Interpolator 8X Interpolator Modulator Modulator VDD VSS DZFL DZFR AOUTL+ AOUTL- AOUTR+ AOUTR- MS0152-E-00 -1- 2002/5 ASAHI KASEI - Ordering Guide AK4381VT AKD4381 - Pin Layout -40 +85C 16pin TSSOP 0.65mm pitch Evaluation Board for AK4381 MCLK BICK SDTI LRCK CCLK CDTI Top View DZFL DZFR AOUTL+ AOUTL- AOUTR+ AOUTR- [AK4381] PIN/FUNCTION No. Pin Name I/O Function 1 MCLK I Master Clock Input Pin An external TTL clock should be input on this pin. 2 BICK I Audio Serial Data Clock Pin 3 SDTI I Audio Serial Data Input Pin 4 LRCK I L/R Clock Pin 5 PDN I Power-Down Mode Pin When at “L”, the AK4381 is in the power-down mode and is held in reset. The AK4381 should always be reset upon power-up. 6 CSN I Chip Select Pin 7 CCLK I Control Data Input Pin 8 CDTI I Control Data Input Pin in serial mode 9 AOUTR- O Rch Negative Analog Output Pin

PDF Datasheet Preview

ASAHI KASEI
[AK4381]

AK4381
108dB 192kHz 24-Bit 2ch DAC

The AK4381 offers the perfect mix for cost and performance based audio systems. Using AKM's multi bit architecture for its modulator the AK4381 delivers a wide dynamic range while preserving linearity for improved THD+N performance. The AK4381 has full differential SCF outputs, removing the need for AC coupling capacitors and increasing performance for systems with excessive clock jitter. The 24 Bit word length and 192kHz sampling rate make this part ideal for a wide range of applications including DVD-Audio. The AK4381 is offered in a space saving 16pin TSSOP package.

FEATURES Sampling Rate Ranging from 8kHz to 192kHz 128 times Oversampling Normal Speed Mode 64 times Oversampling Double Speed Mode 32 times Oversampling Quad Speed Mode 24-Bit 8 times FIR Digital Filter On chip SCF Digital de-emphasis for 32k, 44.1k and 48kHz sampling Soft mute Digital Attenuator Linear 256 steps I/F format 24-Bit MSB justified, 24/20/16-Bit LSB justified or I2S Master clock 256fs, 384fs, 512fs or 768fs Normal Speed Mode
128fs, 192fs, 256fs or 384fs Double Speed Mode
128fs, 192fs Quad Speed Mode THD+N -94dB Dynamic Range 108dB High Tolerance to Clock Jitter Power supply to 5.25V Very Small Package 16pin TSSOP 6.4mm x 5.0mm AK4382A Pin Compatible

MCLK

CSN CCLK CDTI

LRCK BICK SDTI
uP Interface

De-emphasis Control

Clock Divider

Audio Data Interface
8X Interpolator
8X Interpolator

Modulator

Modulator

VDD VSS

DZFL DZFR AOUTL+ AOUTL-

AOUTR+ AOUTR-

MS0152-E-00 -1-
2002/5

ASAHI KASEI
- Ordering Guide

AK4381VT AKD4381 - Pin Layout
-40 +85C
16pin TSSOP 0.65mm pitch

Evaluation Board for AK4381

MCLK

BICK

SDTI

LRCK

CCLK

CDTI

Top View

DZFL

DZFR

AOUTL+

AOUTL-

AOUTR+

AOUTR-
[AK4381]

PIN/FUNCTION

No. Pin Name

I/O Function
1 MCLK

I Master Clock Input Pin An external TTL clock should be input on this pin.
2 BICK

I Audio Serial Data Clock Pin
3 SDTI

I Audio Serial Data Input Pin
4 LRCK

I L/R Clock Pin
5 PDN

I Power-Down Mode Pin When at “L”, the AK4381 is in the power-down mode and is held in reset.

The AK4381 should always be reset upon power-up.
6 CSN

I Chip Select Pin
7 CCLK

I Control Data Input Pin
8 CDTI

I Control Data Input Pin in serial mode
9 AOUTR-

O Rch Negative Analog Output Pin

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Datasheet ID: AK4381VT 515876