參數(shù)資料
型號(hào): 74HCT9046A
廠商: NXP Semiconductors N.V.
英文描述: PLL with bandgap controlled VCO
中文描述: 鎖相環(huán)控制VCO的帶隙
文件頁(yè)數(shù): 35/40頁(yè)
文件大?。?/td> 240K
代理商: 74HCT9046A
1999 Jan 11
35
Philips Semiconductors
Product specification
PLL with bandgap controlled VCO
74HCT9046A
MGA952
3.1
3.0
2.9
2.1
2.0
1.9
0
0.5
1.0
1.5
2.0
2.5
time (ms)
proportional
to output
frequency
(MHz)
N = 30
N stepped from 29 to 30
step input
N stepped from 21 to 20
Fig.36 Frequency compared to the time response.
Since the output frequency is proportional to the VCO
control voltage, the PLL frequency response can be
observed with an oscilloscope by monitoring pin 9 of the
VCO. The average frequency response, as calculated by
the Laplace method, is found experimentally by smoothing
this voltage at pin 9 with a simple RC filter, whose time
constant is long compared with the phase detector
sampling rate but short compared with the PLL response
time.
Further information
For an extensive description and application example
please refer to “Application note”ordering number
9398 649 90011. Also available a “Computer design
program for PLLs”ordering number 9398 961 10061.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74HCT9046AD 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
74HCT9046AD,112 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
74HCT9046AD,118 功能描述:鎖相環(huán) - PLL PLL BAND GAP CNTRL 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
74HCT9046AD-T 制造商:PHILIPS-SEMI 功能描述:
74HCT9046AN,112 功能描述:鎖相環(huán) - PLL PLL BAND GAP CNTRL 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