參數(shù)資料
型號: MK3754STR
元件分類: 時鐘產(chǎn)生/分配
英文描述: 54 MHz, OTHER CLOCK GENERATOR, PDSO8
封裝: 0.150 INCH, SOIC-8
文件頁數(shù): 1/6頁
文件大?。?/td> 99K
代理商: MK3754STR
MK3754
MDS 3754 H
1
Revision 072805
Integrat ed Circuit Systems 525 Race Stre et, San Jo se, CA 9 5126 te l (40 8 ) 2 97-12 01 www.ics t.co m
LOW COST 54 MHZ 3.3 VOLT VCXO
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
Vo ltage
Con trolled
C rystal
O scillator
VIN
13.5 M H z
Pullable
C rystal
PL L/Clo ck
Syn thesis
Circu itry
VD D
GND
相關(guān)PDF資料
PDF描述
MK3754DTR 54 MHz, OTHER CLOCK GENERATOR, PDSO8
MK3754D 54 MHz, OTHER CLOCK GENERATOR, PDSO8
MK3771-17RLFTR 108 MHz, OTHER CLOCK GENERATOR, PDSO28
MK3771-17R 108 MHz, OTHER CLOCK GENERATOR, PDSO28
MK3771-17RLF 108 MHz, OTHER CLOCK GENERATOR, PDSO28
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MK3771-17 制造商:ICS 制造商全稱: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 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器,PLL,頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:*
MK3771-17RLF 功能描述:VCXO振蕩器 VCXO AND HDTV SET-TO P CLOCK SOURCE RoHS:否 制造商:Fox 封裝 / 箱體:5 mm x 3.2 mm 頻率:19.2 Mhz 頻率穩(wěn)定性:2.5 PPM 輸出格式: 封裝:Reel 電源電壓:3 V 端接類型:SMD/SMT 尺寸:3.2 mm W x 5 mm L x 1.5 mm H 最小工作溫度:- 20 C 最大工作溫度:+ 75 C
MK3771-17RLFTR 功能描述:時鐘發(fā)生器及支持產(chǎn)品 VCXO AND HDTV SET-TO P CLOCK SOURCE RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56