Datasheet > SPD2830-211

SPD2830-211

更新时间： 2024-09-24 19:20:51

品牌	Logo	应用领域
思佳讯 - SKYWORKS		/
页数	文件大小	规格书
3页	48K
描述
Phase Detector

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技术参数
数据手册

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SPD2830-211 技术参数

生命周期：	Obsolete	包装说明：	, QFL5/6,.07X.1,34
Reach Compliance Code：	unknown	风险等级：	5.84
模拟集成电路 - 其他类型：	PHASE DETECTOR	端子数量：	5
封装主体材料：	PLASTIC/EPOXY	封装等效代码：	QFL5/6,.07X.1,34
认证状态：	Not Qualified	子类别：	PLL or Frequency Synthesis Circuits
表面贴装：	YES	Base Number Matches：	1

SPD2830-211 数据手册

Sampling Phase Detectors

SPD Series

Features

Low Cost Design

Rugged, Modular, Hybrid Construction

Phase Locks VCO and DROs up to 20 GHz

Wide Frequency Range

Available for Oscillator Signal Levels from

–3 dBm to +13 dBm

Hermetic Package Available

Description

Alpha’s series of Sampling Phase Detectors (SPD’s)

consist of a hybrid assembly of an SRD comb

generator, coupling capacitors and microwave mixer

diodes. This module makes an inexpensive way of

phase locking a commercial VCO source to a low

frequency stable reference. Each part in the series is

optimized to operate in standard narrow band

commercial systems. All units handle reference

frequencies in the 50 to 500 MHz band. Component

selectionwithinAlphaallowsustominimizebeatnote

output.

circuit with shunt capacitors will result in larger

amplitude beat note signals.

The subharmonic mixer portion is the Schottky series

pair. Various drive levels can be used to tailor

intermodulation and beat note performance.

The basic operation of a SPD is when the reference

signal is fed into the SRD. This sets up a strong pulse,

rich in harmonics that is used to strobe the mixer

diodes on. The balanced mixer design converts the

sampled oscillator signal and matching harmonics into

an IF beat note. This signal can then be used in

feedback loop to correct tuning voltage on the VCO.

It is easiest to think of the SPD in its two constituent

forms; a comb generator and subharmonic mixer.

Typical applications include phase locking of

The comb generator portion consists of the external

reference, amplifier and impedance transformer. The

external circuit matches into the low impedance of the

SRD portion of the SPD. Careful attention to matching

by setting the right transformer ratio, detuning the

oscillators

TVRO,

VSAT,

DBS

and

telecommunications markets.

Leadless chip carriers and surface mount versions

are also available

Alpha Industries • [617] 935Ć5150 • Fax [617] 824Ć4579 • E-mail sales@alphaind.com • Visit our web site: www.alphaind.com

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