Datasheet> 器件分类 > 无源元件> 振荡器> 19.44MHZCFPT-9051CS3C

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19.44MHZCFPT-9051CS3C: 产品描述HCMOS Output Clock Oscillator, 19.44MHz Nom, SMD, 6 PIN; 产品类别无源元件振荡器; 文件大小62KB，共4页; 制造商C-MAC Automotive; 官网地址https://cmac.com

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19.44MHZCFPT-9051CS3C概述

HCMOS Output Clock Oscillator, 19.44MHz Nom, SMD, 6 PIN

19.44MHZCFPT-9051CS3C规格参数

参数名称	属性值
是否无铅	含铅
是否Rohs认证	不符合
Reach Compliance Code	unknown
其他特性	TRI-STATE; ENABLE/DISABLE FUNCTION
老化	1 PPM/FIRST YEAR
最大控制电压	4.5 V
最小控制电压	0.5 V
最长下降时间	7 ns
频率调整-机械	NO
频率稳定性	1.5%
制造商序列号	CFPT-9051
安装特点	SURFACE MOUNT
标称工作频率	19.44 MHz
最高工作温度	70 °C
最低工作温度	-20 °C
振荡器类型	HCMOS
输出负载	15 pF
物理尺寸	14.7mm x 9.2mm x 6.2mm
最长上升时间	7 ns
最大供电电压	5.5 V
最小供电电压	4.5 V
标称供电电压	5 V
表面贴装	YES
最大对称度	45/55 %
Base Number Matches	1

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CFPT-9050 Series

ISSUE 6 ; 23 DECEMBER 2004

Recommended for New Designs

Delivery Options

■

Frequency Stability

■

Temperature: see table

Typical Supply Voltage Variation ±10% < ±0.2 ppm*

Typical Load Coefficient 15pF ±5pF < ±0.2 ppm*

Please contact our sales office for current leadtimes

Description

■

* Depending on frequency and output type

Frequency Adjustment

■

A highly versatile series of surface mountable

14.7 x 9.2 x 6.2mm temperature compensated voltage

controlled crystal oscillators (TCVCXOs) for applications

where small size and high performance are pre-

requisites. This oscillator uses C-MAC’s latest custom

ASIC "Pluto", a single chip oscillator and analogue

compensation circuit, capable of sub 0.3 ppm

performance. Its wide frequency range, operating

temperature range, drive capability, coupled with its

high stability and linear frequency pulling make it the

ideal reference oscillator. Its ability to function down to

a supply voltage of 2.4V and low power consumption

makes it particularly suitable for mobile applications

Three options with external Voltage Control applied to

pad 1:

A - Ageing adjustment: > ±5ppm (Standard Option)

B - No frequency adjustment. Initial calibration @ 25°C

< ±0.5 ppm

C - High Pulling ±10ppm to ±50ppm can be available

depending on frequency and stability options.

Please consult our sales office

■

Linearity

Slope

Input resistance

Modulation bandwidth

Standard control voltage ranges:

Without reference voltage

With reference voltage

< 1%

Positive

> 100kΩ

> 2kHz

Standard Frequencies

■

9.6, 10.0, 12.8, 19.44, 20.0, 38.88, 49.152, 51.84MHz

Waveform

SURFACE MOUNT

TCXOs

■

Square HCMOS 15pF load

Square ACMOS 50pF max. load

Sinewave 10kΩ // 10pF AC-coupled

Clipped sinewave 10kΩ // 10pF AC-coupled

- Vs=5.0V 2.5V±2V

- Vs=3.3V 1.65V±1V

- Vc=0V to Vref

■

Reference Voltage, Vref (HCMOS/ACMOS only)

■

Supply Voltage

■

Optional reference voltage output on pad 5, suitable for

potentiometer supply or DAC reference.

1. No output (standard option)

2. 2.2V, for Min. Vs>2.4V

3. 2.7V, for Min. Vs>3.0V

4. 4.2V, for Min. Vs>4.5V

Maximum load current (mA) = Vref /10

Operating range 2.4 to 6.0V, see table

Current Consumption

■

HCMOS Typically

≈

1+Frequency(MHz)*Supply(V)*{Load(pF)+15}*10

-3

e.g. 20MHz, 5V, 15pF

≈

4mA

ACMOS Typically

≈

1+Frequency(MHz)*Supply(V)*{Load(pF)+23}*10

-3

Sinewave, 6 to 12 mA depending on frequency

Clipped Sinewave, Typically

≈

1+Frequency(MHz)*1.2*{Load(pF)+30}*10

-3

■

For manual frequency adjustment (HCMOS/ACMOS output

only) connect an external 50kΩ potentiometer between

pad 5 (Reference Voltage) and pad 3 (GND) with wiper

connected to pad 1 (Voltage Control). Please specify

reference voltage as a part of the ordering code

Note: Please contact our sales office if a reference voltage

is required in combination with sine or clipped sinewave

output

Tri-state

Package Outline

■

14.7 x 9.2 x 6.2mm SMD

■

Ageing

■

Pad 2 open circuit or >0.6Vs output enabled

< 0.2Vs Tri-state

When Tri-stated, the output stage is disabled for all

output options, but the oscillator and compensation

circuit are still active (current consumption <1mA)

±1ppm maximum in first year

±3ppm maximum for 10 years

±1ppm maximum after reflow

■

Europe Tel: +44 (0)1460 270200

Americas Tel: +1 919 941 9333

Asia

Tel: +86 755 8826 5991

Fax: +44 (0)1460 72578

Fax: +1 919 941 9371

Fax: +86 755 8826 5990

Website: www.cmac.com

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