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參數(shù)資料
| 型號(hào)： | MK3721DLF |
| 元件分類： | 時(shí)鐘產(chǎn)生/分配 |
| 英文描述： | 28 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MK3721DLFTR | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 LOW COST 16.2:28Mhz 3.3V VCXO RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| MK3721DTR | 功能描述:IC VCXO DTV/SET-TOP 8-SOIC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:PLL 時(shí)鐘發(fā)生器 PLL:帶旁路 輸入:LVCMOS，LVPECL 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:2:11 差分 - 輸入:輸出:是/無 頻率 - 最大:240MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:帶卷 (TR) |
| MK3721S | 功能描述:IC VCXO DTV/SET-TOP 8-SOIC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:PLL 時(shí)鐘發(fā)生器 PLL:帶旁路 輸入:LVCMOS，LVPECL 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:2:11 差分 - 輸入:輸出:是/無 頻率 - 最大:240MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:帶卷 (TR) |
| MK3721STR | 功能描述:IC VCXO DTV/SET-TOP 8-SOIC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:PLL 時(shí)鐘發(fā)生器 PLL:帶旁路 輸入:LVCMOS，LVPECL 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:2:11 差分 - 輸入:輸出:是/無 頻率 - 最大:240MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:帶卷 (TR) |
| MK3722 | 制造商:ICSI 制造商全稱:Integrated Circuit Solution Inc 功能描述:VCXO PLUS AUDIO CLOCK FOR STB |
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