AK4421

更新时间： 2024-11-04 06:36:51

品牌	Logo	应用领域
AKM		/
页数	文件大小	规格书
19页	364K
描述
192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output

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[AK4421]

AK4421

192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output

GENERAL DESCRIPTION

The AK4421 is 3.3V 24-bit stereo DAC with an integrated 2Vrms output buffer. A charge pump in the

buffer develops an internal negative power supply rail that enables a ground-referenced 2Vrms output.

Using AKM’s multi bit modulator architecture, the AK4421 delivers a wide dynamic range while preserving

linearity for improved THD+N performance. The AK4421 integrates a combination of switched-capacitor

and continuous-time filters, 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 consumer audio

applications, such as portable A/V players, set-top boxes, and digital televisions. The AK4421 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

Single Ended 2Vrms Output Buffer

Soft mute

I/F format: 24-Bit MSB justified or I²S

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

256fs or 384fs (Double Speed Mode)

128fs or 192fs (Quad Speed Mode)

THD+N: -92dB (-3dB output level)

Dynamic Range: 102dB

Automatic Power-on Reset Circuit

Power supply: +3.0 ∼ +3.6V

Ta = -20 to 85°C

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

MCLK

VDD

SMUTE

Clock

Divider

Control

Interface

DZF

DIF

VSS1

ΔΣ

SCF

LPF

AOUTL

AOUTR

LRCK

Modulator

Interpolator

Audio

Data

Interface

BICK

SDTI

ΔΣ

SCF

LPF

Modulator

Interpolator

Charge

Pump

CN VEE

VSS2

CVDD

MS0945-E-01

2008/08

- 1 -

12 3 4 5 6 7...19

中文翻译

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与AK4421相关器件

型号	品牌	获取价格	描述	数据表
AK4421A	AKM	获取价格	192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output
AK4421AET	AKM	获取价格	192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output
AK4421ET	AKM	获取价格	192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output
AK4424	AKM	获取价格	192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output
AK4424ET	AKM	获取价格	192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output
AK44256D	ACCUTEK	获取价格	262,144 X 8 Bit MOS Dynamic Random Access Memory
AK44256G	ACCUTEK	获取价格	262,144 X 8 Bit MOS Dynamic Random Access Memory
AK44256S	ACCUTEK	获取价格	262,144 X 8 Bit MOS Dynamic Random Access Memory
AK44256SN-10	ACCUTEK	获取价格	DRAM Module, 256KX4, 100ns, NMOS, SIMM-22
AK44256SN-12	ACCUTEK	获取价格	DRAM Module, 256KX4, 120ns, NMOS, SIMM-22