Electronic Components Datasheet Search |
|
LTC6930HMS8-8.00-PBF Datasheet(PDF) 10 Page - Linear Technology |
|
LTC6930HMS8-8.00-PBF Datasheet(HTML) 10 Page - Linear Technology |
10 / 12 page LTC6930-X.XX 10 6930fa APPLICATIONS INFORMATION Table 1. Frequency Setting and Available Frequencies ÷1 ÷2 ÷4 ÷8 ÷16 ÷32 ÷64 ÷128 DIV Pin Settings [DIVC][DIVB][DIVA] 000 001 010 011 100 101 110 111 LTC6930-4.19 4.194304MHz 2.097152MHz 1.048576MHz 524.288kHz 262.144kHz 131.072kHz 65.536kHz 32.768kHz LTC6930-5.00 5.000MHz 2.500MHz 1.250MHz 625.0kHz 312.5kHz 156.25kHz 78.125kHz 39.0625kHz LTC6930-7.37 7.3728MHz 3.6864MHz 1.8432MHz 921.6kHz 460.8kHz 230.4kHz 115.2kHz 57.6kHz LTC6930-8.00 8.000MHz 4.000MHz 2.000MHz 1000kHz 500.0kHz 250.0kHz 125.0kHz 62.5kHz LTC6930-8.19 8.192MHz 4.096MHz 2.048MHz 1024kHz 512.0kHz 256.0kHz 128.0kHz 64.0kHz calculation for drift over 5 years at 30ppm/√kHr is as follows: 5 years • 365.25 days/year • 24 hours/day = 43,830 hours = 43.830kHr √43.830kHr = 6.62√kHr 6.62√kHr • 30ppm/√kHr = 0.0198% over 5 years. Drift calculations assume that the part is in continuous operation during the entire time period of the calculation. The movement of ions which results in drift is usually aided by electric fields in the operating parts, and the typical drift spec applies while the part is powered up. Conservative calculations would use a tenth of the drift specification for time when power is not applied to the part. Setting the Frequency The output frequency of the LTC6930 is chosen from the values in Table 1 and set using the DIV pins, as noted in the table. Master oscillator frequency is preset in the factory, and the DIV pins select an internal binary divider of up to 128. For example, if the desired oscillator output frequency is 2.5MHz, finding 2.5MHz in Table 1 shows that the LTC6930-5.00 should be ordered, having a master oscil- lator frequency of 5MHz, and a DIV value of [001] should be used. This would equate to grounding DIVC and DIVB, while connecting DIVA to the positive supply. Frequencies other than those shown in Table 1 may be requested. |
Similar Part No. - LTC6930HMS8-8.00-PBF |
|
Similar Description - LTC6930HMS8-8.00-PBF |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |