Datasheet > MK1728-01GTRLF

MK1728-01GTRLF

更新时间： 2024-01-23 06:35:40

品牌	Logo	应用领域
艾迪悌 - IDT		时钟光电二极管外围集成电路晶体
页数	文件大小	规格书
8页	210K
描述
Clock Generator, 36MHz, CMOS, PDSO8, TSSOP-8

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技术参数
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MK1728-01GTRLF 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	TSSOP-8
针数：	8	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.84	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e3	长度：	4.4 mm
端子数量：	8	最高工作温度：	70 °C
最低工作温度：		最大输出时钟频率：	36 MHz
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	NOT SPECIFIED	主时钟/晶体标称频率：	36 MHz
认证状态：	Not Qualified	座面最大高度：	1.2 mm
最大供电电压：	2.625 V	最小供电电压：	2.375 V
标称供电电压：	2.5 V	表面贴装：	YES
技术：	CMOS	温度等级：	COMMERCIAL
端子面层：	MATTE TIN	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	3 mm
uPs/uCs/外围集成电路类型：	CLOCK GENERATOR, OTHER	Base Number Matches：	1

MK1728-01GTRLF 数据手册

MK1728-01

2.5 VOLT LOW EMI CLOCK GENERATOR

SSCG

External Components

The MK1728-01 requires a minimum number of external

components for proper operation.

same side of the board, minimizing vias through other signal

layers. Other signal traces should be routed away from the

MK1728-01. This includes signal traces just underneath the

device, or on layers adjacent to the ground plane layer used

by the device.

Decoupling Capacitor

A decoupling capacitor of 0.01µF must be connected

between VDD and GND on pins 2 and 3, as close to these

pins as possible. For optimum device performance, the

decoupling capacitor should be mounted on the component

side of the PCB. Avoid the use of vias in the decoupling

circuit.

Crystal Information

The crystal used should be a fundamental mode (do not use

third overtone), parallel resonant. Crystal capacitors should

be connected from pins X1 to ground and X2 to ground to

optimize the initial accuracy. The value of these capacitors

is given by the following equation:

Series Termination Resistor

When the PCB trace between the clock output and the load

is over 1 inch, series termination should be used. To series

terminate a 50Ω trace (a commonly used trace impedance)

place a 33Ω resistor in series with the clock line, as close to

the clock output pin as possible. The nominal impedance of

the clock output is 20Ω.

Crystal caps (pF) = (C - 6) x 2

In the equation, C is the crystal load capacitance. So, for a

crystal with a 16 pF load capacitance, two 20 pF [(16-6) x 2]

capacitors should be used.

Tri-level Select Pin Operation

The S1 and S0 select pins are tri-level, meaning they have

three separate states to make the selections shown in the

table on page 2. To select the M (mid) level, the connection

to these pins must be eliminated by either floating them

originally, or tri-stating the GPIO pins which drive the select

pins.

Spread Spectrum Profile

The MK1728-01 low EMI clock generator uses an optimized

frequency slew rate algorithm to facilitate down stream

tracking of zero delay buffers and other PLL devices. The

frequency modulation amplitude is constant with variations

of the input frequency.

PCB Layout Recommendations

For optimum device performance and lowest output phase

noise, the following guidelines should be observed.

1) The 0.01µF decoupling capacitor should be mounted on

the component side of the board as close to the VDD pin as

possible. No vias should be used between the decoupling

capacitor and VDD pin. The PCB trace to VDD pin should

be kept as short as possible, as should the PCB trace to the

ground via.

Modulation Rate

2) To minimize EMI, the 33Ω series termination resistor (if

needed) should be placed close to the clock output.

Time

3) An optimum layout is one with all components on the

IDT™ / ICS™ 2.5 VOLT LOW EMI CLOCK GENERATOR

MK1728-01

REV A 081204

1 234 5 6 7 8

中文翻译

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与MK1728-01GTRLF相关器件

型号	品牌	描述	获取价格	数据表
MK1728-01S	IDT	Clock Generator, 36MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8	获取价格
MK1728-01STRLF	IDT	Clock Generator, 36MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8	获取价格
MK1740FE-R52	OHMITE	RES 174 OHM 1/4W 1% AXIAL	获取价格
MK1741FE-R52	OHMITE	RES 1.74K OHM 1/4W 1% AXIAL	获取价格
MK1742FE-R52	OHMITE	RES 17.4K OHM 1/4W 1% AXIAL	获取价格
MK1743FE-R52	OHMITE	RES 174K OHM 1/4W 1% AXIAL	获取价格

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