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CDC421A312RGER

更新时间： 2024-11-06 12:42:59

品牌	Logo	应用领域
德州仪器 - TI		晶体时钟发生器微控制器和处理器外围集成电路 PC
页数	文件大小	规格书
15页	619K
描述
Fully-Integrated, Fixed-Frequency, Low-Jitter Crystal Oscillator Clock Generator

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技术参数
数据手册
替代型号

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CDC421A312RGER 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	HVQCCN, LCC24,.16SQ,20	针数：	24
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	12 weeks
风险等级：	5.3	Samacsys Confidence：
Samacsys Status：	Released	Samacsys PartID：	605434
Samacsys Pin Count：	25	Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Other	Samacsys Footprint Name：	QFN50P400X400X100-25N
Samacsys Released Date：	2017-01-12 12:59:53	Is Samacsys：	N
JESD-30 代码：	S-PQCC-N24	JESD-609代码：	e4
长度：	4 mm	湿度敏感等级：	2
端子数量：	24	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出时钟频率：	312.5 MHz
封装主体材料：	PLASTIC/EPOXY	封装代码：	HVQCCN
封装等效代码：	LCC24,.16SQ,20	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	260
电源：	3.3 V	主时钟/晶体标称频率：	31.25 MHz
认证状态：	Not Qualified	座面最大高度：	1 mm
子类别：	Clock Generators	最大压摆率：	110 mA
最大供电电压：	3.6 V	最小供电电压：	3 V
标称供电电压：	3.3 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	4 mm
uPs/uCs/外围集成电路类型：	CLOCK GENERATOR, OTHER	Base Number Matches：	1

CDC421A312RGER 数据手册

CDC421AXXX

www.ti.com ....................................................................................................................................................................................................... SCAS875–MAY 2009

Fully-Integrated, Fixed-Frequency, Low-Jitter

Crystal Oscillator Clock Generator

FEATURES

APPLICATIONS

•

Low-Cost, Low-Jitter Frequency Multiplier

•

Single 3.3-V Supply

•

High-Performance Clock Generator,

Incorporating Crystal Oscillator Circuitry with

Integrated Frequency Synthesizer

DESCRIPTION

The

CDC421Axxx

high-performance,

low-phase-noise clock generator. It has an integrated

low-noise, LC-based voltage-controlled oscillator

(VCO) that operates within the 1.75 GHz to 2.35 GHz

frequency range. It has an integrated crystal oscillator

that operates in conjunction with an external AT-cut

crystal to produce a stable frequency reference for a

•

Low Output Jitter: As low as 380 fs (RMS

integrated between 10 kHz to 20 MHz)

Low Phase Noise at 312.5 MHz:

–

Less than –120 dBc/Hz at 10 kHz and

–147 dBc/Hz at 10-MHz offset from carrier

phase-locked

synthesizer. The output frequency (f_OUT

proportional to the frequency of the input crystal

(f_XTAL).

loop

(PLL)-based

frequency

•

Supports Crystal or LVCMOS Input

Frequencies at 31.25 MHz, 33.33 MHz, and

35.42 MHz

)

Output Frequencies: 100 MHz, 106.25 MHz,

125 MHz, 156.25 MHz, 212.5 MHz, 250 MHz, and

312.5 MHz

The device operates in 3.3-V supply environment and

is characterized for operation from –40°C to +85°C.

The CDC421Axxx is available in a QFN-24 4-mm ×

4-mm package.

•

Differential Low-Voltage Positive Emitter

Coupled Logic (LVPECL) Outputs

The CDC421Axxx differs from the CDC421xxx in

the following ways:

Fully-Integrated Voltage-Controlled Oscillator

(VCO): Runs from 1.75 GHz to 2.35 GHz

•

Device Startup

•

Typical Power Consumption: 300 mW

Chip Enable Control Pin

The CDC421Axxx has an improved startup circuit

to enable correct operation for all power-supply

ramp times.

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

ESD Protection Exceeds 2 kV (HBM)

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

Loop Filter

Crystal

Oscillator

Input

CLK

External

Crystal

VCO

Feedback

Divider

NCLK

CDC421Axxx

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...15

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CDC421A312RGER 替代型号

型号	品牌	替代类型	描述	数据表
CDC421A312RGET	TI	完全替代	Fully-Integrated, Fixed-Frequency, Low-Jitter Crystal Oscillator Clock Generator

与CDC421A312RGER相关器件

型号	品牌	获取价格	描述	数据表
CDC421A312RGET	TI	获取价格	Fully-Integrated, Fixed-Frequency, Low-Jitter Crystal Oscillator Clock Generator
CDC421XXX	TI	获取价格	FULLY INTEGRATED FIXED FREQUENCY LOW-JITTER, CRYSTAL-OSCILLATOR CLOCK GENERATOR
CDC4D20	SUMIDA	获取价格	POWER INDUCTORS
CDC4D20_13	SUMIDA	获取价格	SMD Power Inductor
CDC4D20-101KB	SUMIDA	获取价格	General Purpose Inductor, 100uH, 10%, 1 Element, SMD,
CDC4D20-101KC	SUMIDA	获取价格	General Purpose Inductor, 100uH, 10%, 1 Element, SMD,
CDC4D20-102KB	SUMIDA	获取价格	General Purpose Inductor, 1000uH, 10%, 1 Element, SMD,
CDC4D20-102KC	SUMIDA	获取价格	General Purpose Inductor, 1000uH, 10%, 1 Element, SMD,
CDC4D20-121KB	SUMIDA	获取价格	General Purpose Inductor, 120uH, 10%, 1 Element, SMD,
CDC4D20-121KC	SUMIDA	获取价格	General Purpose Inductor, 120uH, 10%, 1 Element, SMD,

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