CS4329-KS

更新时间： 2024-01-18 13:34:33

品牌	Logo	应用领域
凌云 - CIRRUS		转换器光电二极管
页数	文件大小	规格书
36页	1538K
描述
20-Bit, Stereo D/A Converter for Digital Audio

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技术参数
数据手册

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CS4329-KS 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Active	零件包装代码：	SSOP
包装说明：	SSOP,	针数：	20
Reach Compliance Code：	unknown	风险等级：	5.84
Is Samacsys：	N	最大模拟输出电压：	2.1 V
最小模拟输出电压：	1.9 V	转换器类型：	D/A CONVERTER
输入位码：	2'S COMPLEMENT	输入格式：	SERIAL
JESD-30 代码：	R-PDSO-G20	JESD-609代码：	e0
长度：	7.2 mm	位数：	20
功能数量：	1	端子数量：	20
最高工作温度：	70 °C	最低工作温度：	-10 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	COMMERCIAL
座面最大高度：	2.13 mm	标称供电电压：	5 V
表面贴装：	YES	温度等级：	COMMERCIAL
端子面层：	TIN LEAD	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	5.3 mm
Base Number Matches：	1

CS4329-KS 数据手册

CS4329

of the input signal at multiples of 128× the input

sample rate. These images are removed by the ex-

ternal analog filter.

GENERAL DESCRIPTION

The CS4329 is a complete stereo digital-to-analog

system including 128× digital interpolation, fourth-

order delta-sigma digital-to-analog conversion,

128× oversampled one-bit delta-sigma modulator

and analog filtering. This architecture provides a

high insensitivity to clock jitter. The DAC converts

digital data at any input sample rate between 1 and

50 kHz, including the standard audio rates of 48,

44.1 and 32 kHz.

Delta-Sigma Modulator

The interpolation filter is followed by a fourth-or-

der delta-sigma modulator which converts the 24-

bit interpolation filter output into 1-bit data at

128× Fs.

Switched-Capacitor Filter

The primary purpose of using delta-sigma modula-

tion techniques is to avoid the limitations of laser

trimmed resistive DAC architectures by using an

inherently linear 1-bit DAC. The advantages of a 1-

bit DAC include: ideal differential linearity, no dis-

tortion mechanisms due to resistor matching errors

and no linearity drift over time and temperature due

to variations in resistor values.

The delta-sigma modulator is followed by a digital-

to-analog converter which translates the 1-bit data

into a series of charge packets. The magnitude of

the charge in each packet is determined by sam-

pling of a voltage reference onto a switched capac-

itor, where the polarity of each packet is controlled

by the 1-bit signal. This technique greatly reduces

the sensitivity to clock jitter and is a major im-

provement over earlier generations of 1-bit digital-

to-analog converters where the magnitude of

charge in the D-to-A process is determined by

switching a current reference for a period of time

defined by the master clock.

Digital Interpolation Filter

The digital interpolation filter increases the sample

rate by a factor of 4 and is followed by a 32× digital

sample-and hold to effectively achieve a 128× in-

terpolation filter. This filter eliminates images of

the baseband audio signal which exist at multiples

of the input sample rate, Fs. This allows for the se-

lection of a less complex analog filter based on out-

of-band noise attenuation requirements rather than

anti-image filtering. Following the interpolation

filter, the resulting frequency spectrum has images

The CS4329 incorporates a differential output to

maximize the output level to minimize the amount

of gain required in the output analog stage. The dif-

ferential output also allows for the cancellation of

common mode errors in the differential to singled-

ended converter.

Analog

Low-Pass

Filter

AOUTL+

Delta-Sigma

Interpolator

DAC

Modulator

AOUTL-

Figure 2. Block Diagram

DS153F1

1...4 5 678 9 10...36

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CS4330	CIRRUS	8 Pin Stereo D/A Converter for Digital Audio	获取价格
CS4330-BS	CIRRUS	8 Pin Stereo D/A Converter for Digital Audio	获取价格
CS4330-KS	CIRRUS	8 Pin Stereo D/A Converter for Digital Audio	获取价格
CS4331	CIRRUS	8 Pin Stereo D/A Converter for Digital Audio	获取价格
CS4331-BS	CIRRUS	8 Pin Stereo D/A Converter for Digital Audio	获取价格
CS4331-KS	CIRRUS	8 Pin Stereo D/A Converter for Digital Audio	获取价格

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