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LTC6905

Features: One External Resistor Sets the Frequency Fast Start-Up Time: 100µs Typical Frequency Range: 17MHz to 170MHz Frequency Error ±0.5% Typ 17MHz to 170MHz (TA = 0°C to 70°C, Over All Settings) ±20ppm/°C Temperature Stability Rise Time: 0.5ns, CL = 5pF Timing Jitter: 50ps at 170MHz 50% ...

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SeekIC No. : 004402688 Detail

LTC6905: Features: One External Resistor Sets the Frequency Fast Start-Up Time: 100µs Typical Frequency Range: 17MHz to 170MHz Frequency Error ±0.5% Typ 17MHz to 170MHz (TA = 0°C to 70°C, Over All Set...

LTC6905 Data Sheet

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Part Number:
LTC6905
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

One External Resistor Sets the Frequency
Fast Start-Up Time: 100µs Typical
Frequency Range: 17MHz to 170MHz
Frequency Error ±0.5% Typ 17MHz to 170MHz (TA = 0°C to 70°C, Over All Settings)
±20ppm/°C Temperature Stability
Rise Time: 0.5ns, CL = 5pF
Timing Jitter: 50ps at 170MHz
50% ±2.5% Duty Cycle
6mA Typical Supply Current, fOSC = 100MHz
CMOS Output Drives 500Ω Load (VS = 3V)
Operates from a Single 2.7V to 5.5V Supply
Low Profile (1mm) ThinSOTTM Package


Application

High Frequency Precision Oscillator
High Speed Data Bus Clock
Fixed Crystal Oscillator Replacement
Ceramic Oscillator Replacement


Pinout

Connection Diagram


Specifications

Supply Voltage (V+) to GND ........................0.3V to 6V
DIV to GND .................................... 0.3V to (V+ + 0.3V)
SET to GND ................................... 0.3V to (V+ + 0.3V)
Output Short-Circuit Duration (Note 6) .......... Indefinite
Operating Temperature Range (Note 7)
   LTC6905C, I ....................................... 40°C to 85°C
   LTC6905H ........................................ 40°C to 125°C
Specified Temperature Range (Note 8)
   LTC6905C .............................................. 0°C to 70°C
   LTC6905I.............................................40°C to 85°C
   LTC6905H .........................................40°C to 125°C
Storage Temperature Range .............. 65°C to 150°C
Lead Temperature (Soldering, 10 sec)............... 300°C


Description

The LTC®6905 precision, programmable silicon oscillator is easy to use and occupies very little board space. It requires only a single resistor to set the output frequency from 17MHz to 170MHz with a typical frequency error of 0.5% or less.

The LTC6905 operates with a single 2.7V to 5.5V power supply and provides a rail-to-rail, 50% duty cycle square wave output. The CMOS output driver ensures fast rise/fall times and rail-to-rail switching. Operation is simple: A single resistor, RSET, between 10K to 25K is used to set the frequency, and an internal three-state divider (DIV input) allows for division of the master clock by 1, 2 or 4, providing three frequencies for each RSET value.

The LTC6905 features a proprietary feedback loop that linearizes the relationship between RSET and frequency, eliminating the need for tables to calculate frequency. The oscillator can be easily programmed using the simple formula outlined below:




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