参数资料
型号: MK3721DLF
元件分类: 时钟产生/分配
英文描述: 28 MHz, OTHER CLOCK GENERATOR, PDSO8
封装: SOIC-8
文件页数: 1/6页
文件大小: 113K
代理商: MK3721DLF
MDS 3721 E
1
Revision 103003
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 16.2 TO 28 MHZ 3.3 VOLT VCXO
MK3721
Description
The MK3721 series of devices includes the original
MK3721S and the new MK3721D. The MK3721D is a
drop-in replacement for the MK3721S device.
Compared to the earlier device, the MK3721D offers a
wider operating frequency range and improved power
supply noise rejection.
The MK3721 is a low cost, low-jitter, high-performance
3.3 volt VCXO designed to replace expensive discrete
VCXOs modules. The on-chip Voltage Controlled
Crystal Oscillator accepts a 0 to 3.3 V input voltage to
cause the output clocks to vary by ±100 ppm. Using
ICS’ patented VCXO techniques, the device uses an
inexpensive external pullable crystal in the range of
16.2 to 28 MHz to produce a VCXO output clock at that
same frequency.
ICS manufactures the largest variety of Set-Top Box
and multimedia clock synthesizers for all applications.
If more clock outputs are needed, see the MK3732 or
MK377x family of parts. Consult ICS to eliminate
VCXOs, crystals, and oscillators from your board.
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 3.3 V.
Features
MK3721D is a drop-in replacement for the earlier
MK3721S device
Packaged in 8-pin SOIC
Operational frequency range of 16.2 MHz to 28 MHz
Uses an inexpensive external crystal
On-chip patented VCXO with pull range of 200 ppm
(minimum)
VCXO tuning voltage of 0 to 3.3 V
Operating voltage of 3.3 V
12 mA output drive capability at TTL levels
Advanced, low-power, sub-micron CMOS process
For frequencies between 1 MHz and 8 MHz, use the
MK3713D. For higher than 28 MHz, use the
MK3732-05.
Available in a lead-free package
MK3721D is recommended for new designs.
Block Diagram
X1
X2
Voltage
Controlled
Crystal
Oscillator
VIN
16.2 to 28 MHz
Pullable
Crystal
16.2 to 28 MHz Clock
(REFOUT)
GND
VDD
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相关代理商/技术参数
参数描述
MK3721DLFTR 功能描述:时钟合成器/抖动清除器 LOW COST 16.2:28Mhz 3.3V VCXO RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel
MK3721DTR 功能描述:IC VCXO DTV/SET-TOP 8-SOIC 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:2,000 系列:- 类型:PLL 时钟发生器 PLL:带旁路 输入:LVCMOS,LVPECL 输出:LVCMOS 电路数:1 比率 - 输入:输出:2:11 差分 - 输入:输出:是/无 频率 - 最大:240MHz 除法器/乘法器:是/无 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP(7x7) 包装:带卷 (TR)
MK3721S 功能描述:IC VCXO DTV/SET-TOP 8-SOIC 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:2,000 系列:- 类型:PLL 时钟发生器 PLL:带旁路 输入:LVCMOS,LVPECL 输出:LVCMOS 电路数:1 比率 - 输入:输出:2:11 差分 - 输入:输出:是/无 频率 - 最大:240MHz 除法器/乘法器:是/无 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP(7x7) 包装:带卷 (TR)
MK3721STR 功能描述:IC VCXO DTV/SET-TOP 8-SOIC 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:2,000 系列:- 类型:PLL 时钟发生器 PLL:带旁路 输入:LVCMOS,LVPECL 输出:LVCMOS 电路数:1 比率 - 输入:输出:2:11 差分 - 输入:输出:是/无 频率 - 最大:240MHz 除法器/乘法器:是/无 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP(7x7) 包装:带卷 (TR)
MK3722 制造商:ICSI 制造商全称:Integrated Circuit Solution Inc 功能描述:VCXO PLUS AUDIO CLOCK FOR STB