LTC6908-1

Total Supply Voltage (V⁺ to GND)      ...............................6V
Maximum Voltage on any Pin(GND -0.3V)V_PIN(V⁺+ 0.3V)
Output Short Circuit Duration ..................................Inde nite
Operating Temperature Range (Note 2)
LTC6908CS6-1/LTC6908CS6-2 .........................-40 to 85
LTC6908IS6-1/LTC6908IS6-2 ...........................-40 to 85
LTC6908HS6-1/LTC6908HS6-2 .......................-40 to 125
LTC6908CDCB-1/LTC6908CDCB-2 ....................-40 to 85
LTC6908IDCB-1/LTC6908IDCB-2 ......................-40 to 85
Speci ed Temperature Range (Note 3)
LTC6908CS6-1/LTC6908CS6-2 ...........................0 to 70
LTC6908IS6-1/LTC6908IS6-2 ..........................-40 to 85
LTC6908HS6-1/LTC6908HS6-2 ......................-40 to 125
LTC6908CDCB-1/LTC6908CDCB-2 ......................0 to 70
LTC6908IDCB-1/LTC6908IDCB-2 ....................-40 to 85
Storage Temperature Range (S6) .................-65 to 150
Storage Temperature Range (DCB) ..............-65 to 125
Lead Temperature (Soldering, 10sec) ........................300

The LTC^® 6908 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 (R_SET) and spread spectrum frequency modulation
(SSFM) can be activated for improved electromagnetic compatibility (EMC) performance.

The LTC6908 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:

f_OUT=10MHz  10k/R_SET

The LTC6908fls 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  xed 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 f_OUT/16, f_OUT/32 and f_OUT/64.