Datasheet > DS2188S/T&R

DS2188S/T&R

更新时间： 2024-10-28 14:41:51

品牌	Logo	应用领域
美信 - MAXIM		衰减器 PC 电信光电二极管电信集成电路
页数	文件大小	规格书
10页	135K
描述
PCM Jitter Attenuator, 1-Func, CEPT PCM-30/E-1, CMOS, PDSO16, SOIC-16

阅读下载

中文翻译

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

DS2188S/T&R 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOIC-16	针数：	16
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.33.00.01	Factory Lead Time：	1 week
风险等级：	5.65	运营商类型：	CEPT PCM-30/E-1
运营商类型（2）：	T-1(DS1)	JESD-30 代码：	R-PDSO-G16
JESD-609代码：	e0	长度：	10.335 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	16	最高工作温度：	70 °C
最低工作温度：		封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装等效代码：	SOP16,.4
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	245	电源：	5 V
认证状态：	Not Qualified	座面最大高度：	2.68 mm
子类别：	Other Telecom ICs	最大压摆率：	0.012 mA
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	电信集成电路类型：	PCM JITTER ATTENUATOR
温度等级：	COMMERCIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7.51 mm	Base Number Matches：	1

DS2188S/T&R 数据手册

DS2188

T1/CEPT Jitter Attenuator

www.dalsemi.com

FEATURES

PIN ASSIGNMENT

ꢀ Attenuates clock and data jitter present in T1

or CEPT lines

DJA

RPOS

VDD

RRPOS

RRNEG

RRCLK

RST

ꢀ Meets the jitter attenuation templates

outlined in TR62411, TR-TSY-000170,

G.735, and G.742

ꢀ Only one external component required; either

a 6.176 MHz (T1) or 8.192 MHz (CEPT)

crystal

ꢀ Selectable buffer size of 128 or 32 bits

ꢀ Jitter attenuation is easily disabled

ꢀ Single +5V supply; low-power CMOS

technology

ꢀ Available in 16-pin DIP and 16-pin SOIC

(DS2188S)

RNEG

RCLK

BDS

TEST

XTAL OUT

VSS

XTAL2

XTAL1

ORDERING INFORMATION

DS2188

DS2188S

DS2188N

16 Pin dip

16 Pin SOIC (0º-+70ºC)

16 Pin dip (-40ºC-+85ºC)

(0ºC-F70ºC)

ꢀ Companion to the DS2186 Transmit Line

and DS2187 Receive Line Interface

DS2188SN 16 Pin SOIC (-40ºC-+85-ºC)

DESCRIPTION

The DS2188 T1/CEPT Jitter Attenuator Chip contains a 128 X 2-bit buffer which, in conjunction with an

external 4X crystal, is used to attenuate the incoming jitter present in clock and data. The device meets all

of the latest applicable specifications including those outlined in TR 62411 (Accunet* T1.5 Service

Description and Interface Specifications, December 1990), TR-TSY-000170 (Digital Cross-Connect

System Requirements and Objectives, November 1985), and the CCITT Recommendations G.735 and

G.742. The DS2188 is compatible with the DS2180A T1/ISDN Primary Rate Transceiver and DS2181A

CEPT Transceiver and is the companion to the DS2187 T1/CEPT Receive Line Interface and DS2186

T1/CEPT Transmit Line Interface. It can also be used in conjunction with the DS2190 T1 Network

Interface Unit.

OVERVIEW

The RCLK input is fed to a 128 x 2-bit FIFO where it drives the write pointer for the positive (RPOS) and

negative (RNEG) data. The read pointer of the FIFO and RRCLK is generated by dividing the frequency

of the crystal connected to XTAL1 and XTAL2 by four. The frequency of the crystal is adjusted by a

DPLL to the long-term average frequency of RCLK. As long as the jitter present at RCLK is less than

120 unit intervals peak-to-peak (UIpp), then the FIFO buffer will be able to absorb the incoming jitter and

it will be attenuated in accordance with TR 62411 (December 1990). In this situation, the BL (Buffer

Limit) pin will remain low. Figures 1 and 2 illustrate the DS2188 Jitter Attenuator performance.

If the incoming jitter has excursions greater than 120 UIpp, then the crystal is adjusted to track the short-

term frequency variations of the incoming signal so that there is no loss of data. This adjustment is

accomplished by dividing the 4X crystal by either 3 ½ or 4 ½ instead of 4. When the incoming jitter is

1 of 10

100600

12 3 4 5 6 7...10

中文翻译

下载PDF

与DS2188S/T&R相关器件

型号	品牌	获取价格	描述	数据表
DS2188SN	ETC	获取价格	PCM Transceiver
DS2188SN/T&R	MAXIM	获取价格	PCM Jitter Attenuator, 1-Func, CEPT PCM-30/E-1, CMOS, PDSO16, SOIC-16
DS2188SN+	MAXIM	获取价格	PCM Jitter Attenuator, 1-Func, CEPT PCM-30/E-1, CMOS, PDSO16, SOIC-16
DS2189	MAXIM	获取价格	PCM Receiver, CEPT PCM-30/E-1, Bipolar, PDIP24,
DS2189S	MAXIM	获取价格	PCM Receiver, CEPT PCM-30/E-1, Bipolar, PDSO24,
DS219	ETC	获取价格	Analog IC
DS2196	DALLAS	获取价格	T1 Dual Framer LIU
DS2196L	DALLAS	获取价格	T1 Dual Framer LIU
DS2196LN	DALLAS	获取价格	T1 Dual Framer LIU
DS2196LN+	MAXIM	获取价格	Framer, PQFP100, 14 X 14 MM, ROHS COMPLIANT, LQFP-100

与DS2188S/T&R相关文章

三星深化印度制造布局，供应链本地化进程加速
2024-10-29

13
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

13
纳微科技震撼发布GaNSlim革新氮化镓功率芯片
2024-10-18

40
意法半导体发布第四代SiC技术，助力电动汽车电驱
2024-10-15

47

产品中心

服务支持

精选活动

关于我们

帮助中心

DS2188S/T&R

DS2188S/T&R 技术参数

DS2188S/T&R 数据手册

与DS2188S/T&R相关器件

与DS2188S/T&R相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

DS2188S/T&R

DS2188S/T&R 技术参数

DS2188S/T&R 数据手册

与DS2188S/T&R相关器件

与DS2188S/T&R相关文章

您还可以找

您在本页遇到什么问题？