參數(shù)資料
型號： 74HC4046AD/T3
廠商： NXP SEMICONDUCTORS
元件分類： PLL合成/DDS/VCOs
英文描述： PLL FREQUENCY SYNTHESIZER, PDSO16
封裝： SOT-109, SOP-16
文件頁數(shù)： 18/34頁
文件大?。?/td> 442K
代理商： 74HC4046AD/T3
1997 Nov 25
25
Philips Semiconductors
Product specication
Phase-locked-loop with VCO
74HC/HCT4046A
APPLICATION INFORMATION
This information is a guide for the approximation of values of external components to be used with the 74HC/HCT4046A
in a phase-lock-loop system.
References should be made to Figs 29, 30 and 31 as indicated in the table.
Values of the selected components should be within the following ranges:
R1
between 3 k
and 300 k;
R2
between 3 k
and 300 k;
R1 + R2 parallel value
> 2.7 k;
C1
greater than 40 pF.
SUBJECT
PHASE
COMPARATOR
DESIGN CONSIDERATIONS
VCO frequency characteristic
VCO frequency
without extra
offset
PC1, PC2 or PC3
With R2 =
∞ and R1 within the range 3 k< R1 < 300 k, the
characteristics of the VCO operation will be as shown in Fig.25.
(Due to R1, C1 time constant a small offset remains when R2 =
∞.).
Fig.25 Frequency characteristic of VCO operating without offset:
f0 = centre frequency; 2fL = frequency lock range.
Selection of R1 and C1
PC1
Given fo, determine the values of R1 and C1 using Fig.29.
PC2 or PC3
Given fmax and fo, determine the values of R1 and C1 using Fig.29, use
Fig.31 to obtain 2fL and then use this to calculate fmin.
相關(guān)PDF資料
PDF描述
74HC4067NB 16-CHANNEL, SGL ENDED MULTIPLEXER, PDIP24
74HCT4067NB 16-CHANNEL, SGL ENDED MULTIPLEXER, PDIP24
74HC5555D/T3 SPECIALTY ANALOG CIRCUIT, PDSO16
74HCT4016DB-T QUAD 1-CHANNEL, SGL POLE SGL THROW SWITCH, PDSO14
74HCT4016PW-T QUAD 1-CHANNEL, SGL POLE SGL THROW SWITCH, PDSO14
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74HC4046AM 制造商:HAR 功能描述:74HC4046
74HC4046AN 功能描述:鎖相環(huán) - PLL PHASE LOCKED LOOP W/VCO RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
74HC4046AN,652 功能描述:鎖相環(huán) - PLL PHASE LOCKED LOOP RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
74HC4046AN652 制造商:NXP Semiconductors 功能描述:IC PHASE LOCKED LOOP (PLL) VCO 21MHZ
74HC4046APW 功能描述:鎖相環(huán) - PLL PHASE LOCKED LOOP W/VCO RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*