Datasheet > 090-02984-003

090-02984-003

更新时间： 2024-02-19 00:31:07

品牌	Logo	应用领域
美国微芯 - MICROCHIP		电信电信集成电路
页数	文件大小	规格书
3页	562K
描述
Telecom Circuit

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技术参数
数据手册

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090-02984-003 技术参数

是否Rohs认证：	不符合	生命周期：	Active
包装说明：	,	Reach Compliance Code：	compliant
风险等级：	5.7	JESD-30 代码：	R-XDMA-P9
JESD-609代码：	e0	长度：	40.64 mm
功能数量：	1	端子数量：	9
最高工作温度：	70 °C	最低工作温度：	-10 °C
封装主体材料：	UNSPECIFIED	封装形状：	RECTANGULAR
封装形式：	MICROELECTRONIC ASSEMBLY	峰值回流温度（摄氏度）：	NOT SPECIFIED
座面最大高度：	11.684 mm	标称供电电压：	3.3 V
表面贴装：	NO	电信集成电路类型：	TELECOM CIRCUIT
温度等级：	COMMERCIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	PIN/PEG	端子节距：	5.08 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	35.306 mm	Base Number Matches：	1

090-02984-003 数据手册

Frequency and Timing

SA.45s CSAC and RoHS CSAC Options 001 and 003

Chip-Scale Atomic Clock

Features

•

Power consumption <120 mW

Less than 17 cc volume,

1.6" × 1.39" × 0.45"

With an extremely low power consump-

tion of <120 mW and a volume of

<17 cc, the Microchip SA.45s Chip

Scale Atomic Clock (CSAC) brings the

accuracy and stability of an atomic

clock to portable applications for the

ﬁrst time. The CSAC is also available in

a RoHS-compliant form.

A standard CMOS-level RS-232 serial

interface is built in to the SA.45s. This

is used to control and calibrate the unit

and also to provide a comprehensive

set of status monitors. The interface is

also used to set and read the CSAC’s

internal time-of-day clock.

•

10 MHz CMOS-compatible output

1PPS output and 1PPS input for

synchronization

•

RS-232 interface for monitoring and

control

Short term stability (Allan Deviation) of

3.0 × 10^–10at τ =1 sec

The SA.45s provides RF and 1PPS

outputs at standard CMOS levels, with

short-term stability (Allan Deviation) of

3.0 × 10^–10at τ = 1 sec, typical longterm

aging of <9 × 10^–10/month, and maxi-

mum frequency change of ±5 × 10^–10

over an operating temperature range of

–10 °C to 70 °C.

Applications¹

•

GPS receivers

Backpack radios

Anti-IED jamming systems

Autonomous sensor networks

Unmanned vehicles

Underwater sensor systems

Stability for various other

communication and transmission

applications

The SA.45s CSAC accepts a 1PPS

input that may be used to synchronize

the unit’s 1PPS output to an external

reference clock with ±100 ns accuracy.

It also use the 1PPS input to discipline

its phase and frequency to within 1 ns

and 1.0 × 10^–12, respectively.

•

RoHS-Compliant CSAC

•ꢀ RoHS 2 (Directive 2011/65/EU)

•ꢀ Wide storage temperature: 100 °C

¹The CSAC is not tested, qualiﬁed, or rated for space applications.

www.microchip.com

12 3

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