LM Phase Locked Loop. The LM and LMC are general purpose phase locked loops containing a stable, highly linear voltage controlled oscillator for. Part Number: LM, Maunfacturer: National Semiconductor, Part Family: LM, File type: PDF, Document: Datasheet – semiconductor. The LM and LMC are general purpose phase locked loops containing a stable highly linear voltage controlled oscillator for low distortion FM.

Author: Bami Teramar
Country: Poland
Language: English (Spanish)
Genre: Automotive
Published (Last): 9 September 2004
Pages: 123
PDF File Size: 18.48 Mb
ePub File Size: 17.42 Mb
ISBN: 151-7-60716-431-4
Downloads: 41202
Price: Free* [*Free Regsitration Required]
Uploader: Shaktizil

Open Positions To see a list of open positions, datashee here. I have figured out how to use the counter but I am having trouble with the lm PLL.

I have orcade capture 9. RF, Microwave, Antennas and Optics:: Now consider no input is given, under such case the VCO will be in free running mode generating signal whose frequency is determined by the capacitor and resistor connected at the pin 8 and pin 9.

LM Datasheet(PDF) – National Semiconductor (TI)

Search the directory for faculty or staff members. Once the adjustment is done both the input signal frequency and VCO frequency will match. Why do you need a replacement?

The data sheet can be found at. FSK demodulator with LM, 2 questions about the circuit Pin Datawheet LM is a 14 pin device and the function of each pin is stated below.

My multiplier should work from input range Hz to 2kHz ie. At this point I need an explanat. Our People Search the directory for faculty or staff members. Lock in range of pll.


For the analog one, look at the datasheet for the lm However, if you intend to change the beep sound proportional to hartbeat, a more precise way could be achieved using a very small uC. In order to understand let us simplify this block diagram further to get the following.

However this means that most dqtasheet my loop gain KoKd will be greater then the inverse of the timing capacitor Co and resistor Ro. I have attached the circuit confguration i plan to use below. The VCO will increase or decrease the signal frequency depending of the fed voltage of amplifier.

To see a list of open positions, click here. The simplest digital comparator is the XOR gate.

The input signal goes in to the phase detector along with VCO feedback and this phase detector compares whether both signal are in same phase or frequency. The sugestion above could fit your need with a lm IC. Need Orcad Library for some ICs.

FSK demod using LM Hi all, Now, i’m working on my final project. If they are in phase dtasheet frequency the PD provides zero voltage output and if phase or frequency is present the PD provides positive output voltage. My input range is from Hz to Hz, which means my output range is Hz to Hz. OR What would the values for C1, C2 and. Prices are subject to change without notice.

Phase Locked Loop – National Semiconductor

When a signal is given at the input, the frequency of both input signal and the VCO output is compared. For details on these services, please click the appropriate link from the menu on the left.


TL — Programmable Reference Voltage. Engineering Program is accredited by: The device being cheap can be used in applications where cost is considered. I need to work out the values for C1, C2 and R2 if the cut off frequency is 1kHz. Spring Semester, Monday — Friday: But i felt difficulties to simulating my project.

Welcome to the ECE Store

I will be using the op-amp for the Lo. Soldering Tips Helpful Link: Take a look at the datasheet for the 74HC In addition to supporting the various labs in the EL building, we also provide equipment and manual check-out and a wide range of electronic components for sale.

You can also see open positions in the department. Help me configure lag-lead filter. In the device datasheet 2 and pin3 are inputs where we can connect the input analog signal but usually pin 3 will be grounded and pin2 is used as input. Service Manuals, Requests, Repair Tips:: What is the import.

The device mainly consists of two components, one is voltage controller oscillator and other is phase detector. Welcome to the ECE Store.