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LTC6908CS6-2 DataSheet

LTC6908CS6-2 DataSheet

Part No.
LTC6908CS6-2
Part Marking
LTBYD
Temperature
0°C to 70°C
Package
6-Lead Plastic TSOT-23
File Size
498 KB
Page
16 Pages
Manufacturer
Linear Technology
Views
0
Upload Time
2022-07-14 15:37:44
Update Time
2022-07-14
Description
IC OSC SILICON PROG TSOT23-6
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LTC6908CS6-2 Features

■ LTC6908-1: Complementary Outputs (0°/180°)
■ LTC6908-2: Quadrature Outputs (0°/90°)
■ 50kHz to 10MHz Frequency Range
■ One External Resistor Sets the Frequency
■ Optional Spread Spectrum Frequency Modulation for Improved EMC Performance
■ ±10% Frequency Spreading
■ 400µA Supply Current Typical (V+ = 5V, 50kHz)
■ Frequency Error ≤1.5% Max (TA = 25°C, V+ = 3V)
■ ±40ppm/°C Temperature Stability
■ Fast Start-Up Time: 260µs Typical (1MHz)
■ Outputs Muted Until Stable
■ Operates from a Single 2.7V to 5.5V Supply
■ Available in Low Profile (1mm) ThinSOT and DFN (2mm × 3mm) Packages
■ AEC-Q100 Qualified for Automotive Applications

LTC6908CS6-2 Applications

■ Switching Power Supply Clock Reference
■ Portable and Battery-Powered Equipment
■ Precision Programmable Oscillator
■ Charge Pump Driver

LTC6908CS6-2 Description

The LTC6908CS6-2 is an easy-to-use precision oscillator that provides 2-outputs, shifted by either 180° or 90°. The oscillator frequency is programmed by a single external resistor (RSET) and spread spectrum frequency modulation (SSFM) can be activated for improved electromagnetic compatibility (EMC) performance.

The LTC6908CS6-2 operates with a single 2.7V to 5.5V supply and provides rail-to-rail, 50% duty cycle square wave outputs. A single resistor from 10k to 2M is used to select an oscillator frequency from 50kHz to 10MHz (5V supply). The oscillator can be easily programmed using the simple formula outlined below:

fOUT =10MHz • 10k/RSET

The LTC6908’s SSFM capability modulates the output frequency by a pseudorandom noise (PRN) signal to decrease the peak electromagnetic radiation level and improve EMC performance. The amount of frequency spreading is fixed at ±10% of the center frequency. When SSFM is enabled, the rate of modulation is selected by the user. The three possible modulation rates are fOUT/16, fOUT/32 and fOUT/64.

Related LTC6908CS6-2 Datasheet

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