AK4340

更新时间： 2024-11-04 04:32:03

品牌	Logo	应用领域
AKM		/
页数	文件大小	规格书
21页	254K
描述
192kHz 24-Bit Stereo DAC with 2Vrms Output

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AK4340 数据手册

ASAHI KASEI

[AK4340]

AKM CONFIDENTIAL

= Preliminary =

AK4340

∆Σ

192kHz 24-Bit Stereo

DAC with 2Vrms Output

GENERAL DESCRIPTION

The AK4340 offers the ideal features for consumer systems that require a 2Vrms audio output. Using

AKM's multi bit architecture for its modulator the AK4340 delivers a wide dynamic range while preserving

linearity for improved THD+N performance. The AK4340 integrates the Switched Capacitor Filter (SCF)

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 Set-top-box, DVD-Audio. The

AK4340 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

Switched Capacitor Filter with High Tolerance to Clock Jitter

On chip Buffer with 2Vrms Single-ended output

Digital De-emphasis Filter: 32kHz, 44.1kHz or 48kHz

Soft Mute Function

Digital Attenuator (Linear 256 Step)

Audio interface format: 24Bit MSB justified, 24/20/16 LSB justified or

I²S compatible

Master clock: 256fs, 384fs, 512fs, 768fs or 1152fs (Normal Speed Mode)

128fs, 192fs, 256fs or 512fs (Double Speed Mode)

128fs or 192fs (Quad Speed Mode)

THD+N: -90dB

Dynamic Range: 106dB

Power supply: +4.5V to +5.5V (DAC), - 4.5V to - 13.2V (Output Buffer)

Ta = - 20 to 85 °C

Package: 16pin TSSOP (6.4mm x 5.0mm)

MCLK

GAIN

P/S

VDD

VSS

Clock

Divider

De-emphasis

Control

SMUTE/CSN

µP

Interface

HVEE

ACKS/CCLK

DIF0/CDTI

∆Σ

SCF

LPF

ATT

AOUTL

AOUTR

LRCK

Modulator

Interpolator

Audio

Data

Interface

BICK

SDTI

∆Σ

SCF

LPF

Interpolator

Modulator

PDN

Rev.0.6

2005/11

- 1 -

12 3 4 5 6 7...21

中文翻译

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