CDCE421ARGER

更新时间： 2024-11-18 12:42:59

品牌	Logo	应用领域
德州仪器 - TI		时钟发生器
页数	文件大小	规格书
27页	815K
描述
Fully-Integrated, Wide Range, Low-Jitter Crystal Oscillator Clock Generator

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CDCE421ARGER 数据手册

CDCE421A

www.ti.com ..................................................................................................................................................................................................... SCAS873–APRIL 2009

Fully-Integrated, Wide Range, Low-Jitter

Crystal Oscillator Clock Generator

FEATURES

•

Two Fully-Integrated Voltage-Controlled

Oscillators (VCO) Support Wide Output

Frequency Range

•

Single Supply at 3.3 V for LVPECL or LVDS

Operation

•

Fully Integrated Programmable Loop Filter

Typical Power Consumption at 3.3 V:

•

High-Performance Clock Multiplier,

Incorporating Crystal Oscillator Circuitry with

Integrated Frequency Synthesizer

–

274 mW in LVDS mode

•

Low Output Jitter: 380 fs RMS typical

(from 10 kHz to 20 MHz)

250 mW in LVPECL mode

•

Chip Enable Control Pin

Low Phase Noise at High Frequency (708-MHz

LVPECL):

Simple Serial Interface Allows Programming

after Manufacturing

–

Typically –109 dBc/Hz at 10 kHz and

–146dBc/Hz at 10 MHz from the carrier

•

Integrated On-Chip Nonvolatile Memory

(EEPROM) Stores Settings Without Applying

High Voltage

•

Supports Crystal or LVCMOS Input

Frequencies from 27.35 MHz to 38.33 MHz

•

Available in 4-mm × 4-mm QFN-24 Package

ESD Protection Exceeds 2 kV (HBM)

Output Frequency Ranges from 10.9 MHz to

766.7 MHz and from 875.2 MHz to 1175 MHz

Industrial Temperature Range: –40°C to +85°C

Low-Voltage Differential Signaling (LVDS)

Output, 100-Ω Differential Off-Chip

Termination, 10.9-MHz to 400-MHz Frequency

Range

APPLICATIONS

•

Low-Cost, High-Frequency Crystal Oscillator

•

Differential Low-Voltage Positive Emitter

Coupled Logic (LVPECL) Outputs, 10.9-MHz to

1.175-GHz Frequency Range

Program

Output Enable/Programming Interface and EEPROM for Configuration Settings

Loop Filter

Crystal

Oscillator

Input

CLK

Xtal

VCO 1

VCO 2

Feedback

Divider

NCLK

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...27

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CDCE421ARGER 替代型号

型号	品牌	替代类型	描述	数据表
CDCE421ARGET	TI	完全替代	Fully-Integrated, Wide Range, Low-Jitter Crystal Oscillator Clock Generator

与CDCE421ARGER相关器件

型号	品牌	获取价格	描述	数据表
CDCE421ARGET	TI	获取价格	Fully-Integrated, Wide Range, Low-Jitter Crystal Oscillator Clock Generator
CDCE421RGER	TI	获取价格	Fully Integrated Wide-Range, Low-Jitter, Crystal-Oscillator Clock Generator
CDCE421RGERG4	TI	获取价格	Fully Integrated Wide-Range, Low-Jitter, Crystal-Oscillator Clock Generator
CDCE421RGET	TI	获取价格	Fully Integrated Wide-Range, Low-Jitter, Crystal-Oscillator Clock Generator
CDCE421RGETG4	TI	获取价格	Fully Integrated Wide-Range, Low-Jitter, Crystal-Oscillator Clock Generator
CDCE421Y	TI	获取价格	Fully Integrated Wide Range Low-Jitter Crystal Oscillator Clock Generator 0-DIESALE
CDCE421YS	TI	获取价格	Fully Integrated Wide-Range, Low-Jitter, Crystal-Oscillator Clock Generator
CDCE431Y	TI	获取价格	Fully-Integrated, Wide Range, Low-Jitter Crystal Oscillator Clock Generator
CDCE431YS	TI	获取价格	Fully-Integrated, Wide Range, Low-Jitter Crystal Oscillator Clock Generator
CDCE62002	TI	获取价格	Four Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs

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