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参数资料
| 型号： | MK3754S |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 54 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| 封装： | 0.150 INCH, SOIC-8 |
| 文件页数： | 1/7页 |
| 文件大小： | 169K |
| 代理商： | MK3754S |
DATASHEET
LOW COST 54 MHZ 3.3 VOLT VCXO
MK3754
IDT / ICS LOW COST 54 MHZ 3.3 VOLT VCXO
1
MK3754
REV H 072805
Description
The MK3754D and MK3754B are drop-in replacements for
the MK3754S device. Compared to these earlier devices
the MK3754D and MK3754B offer a wider operating
frequency range and improved power supply noise
rejection.
The MK3754 is ICS’ lowest cost, low jitter, high
performance 3.3 Volt VCXO and PLL clock synthesizer
designed to replace expensive 54 MHz VCXOs. The
on-chip Voltage Controlled Crystal Oscillator accepts a 0 to
3.3 V input voltage to vary the output clocks by ±100 ppm.
Using ICS’ patented VCXO and analog/digital
Phase-Locked Loop (PLL) techniques, the device uses an
inexpensive external 13.5 MHz pullable crystal input to
produce a 54 MHz output clock.
The MK3754D exhibits a moderate VCXO gain of
120 ppm/V typical, when used with a high quality external
pullable quartz crystal. The MK3754B offers a higher
VCXO gain of 150 ppm/V. The higher intrinsic VCXO gain
of the MK3754B may help compensate for the reduced
pullability of a low quality crystal used in some applications.
However, higher VCXO gain may also increase clock output
phase noise.
The frequency of the on-chip VCXO is adjusted by an
external control voltage input into pin VIN. Because VIN is a
high impedance input, it can be driven directly from an
PWM RC integrator circuit. Frequency output increases
with VIN voltage input. The usable range of VIN is 0 to 3 V.
Features
MK3754D and MK3754B are drop-in upgrades to the
earlier MK3754S device
Packaged in 8-pin SOIC
Available in Pb (lead) free package
Operating voltage of 3.3 V
Uses an inexpensive 13.500 MHz external crystal
On-chip VCXO (patented) with pull range of 200 ppm
(minimum)
VCXO turning voltage of 0 to 3.3V
12 mA output drive capability at TTL levels
Advanced, low power, sub-micron CMOS process
MK3754D is Recommended for New Designs.
Block Diagram
54 M H z
X1
X2
Voltag e
C o ntrolled
C rystal
O scillator
VIN
13.5 M H z
Pullable
Crystal
PLL /Clock
S ynthesis
Circuitry
VD D
GN D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MK3754STR | 制造商:ICS 制造商全称:ICS 功能描述:Low Cost 54 MHz 3.3 Volt VCXO |
| MK3771-1 | 制造商:ICS 制造商全称:ICS 功能描述:USING MICROCLOCKS INTEGRATED VCXO PRODUCTS |
| MK3771-17 | 制造商:ICS 制造商全称:ICS 功能描述:VCXO and HDTV Set-Top Clock Source |
| MK3771-17R | 功能描述:IC VCXO/PLL CLK SYNTHESZR 28SSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:- 标准包装:39 系列:- 类型:* PLL:带旁路 输入:时钟 输出:时钟 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 频率 - 最大:170MHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| MK3771-17RLF | 功能描述:VCXO振荡器 VCXO AND HDTV SET-TO P CLOCK SOURCE RoHS:否 制造商:Fox 封装 / 箱体:5 mm x 3.2 mm 频率:19.2 Mhz 频率稳定性:2.5 PPM 输出格式: 封装:Reel 电源电压:3 V 端接类型:SMD/SMT 尺寸:3.2 mm W x 5 mm L x 1.5 mm H 最小工作温度:- 20 C 最大工作温度:+ 75 C |
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