Electronic Components Datasheet Search |
|
LTC6905CS5-80 Datasheet(PDF) 5 Page - Linear Technology |
|
LTC6905CS5-80 Datasheet(HTML) 5 Page - Linear Technology |
5 / 8 page LTC6905-XXX Series 5 6905xf BLOCK DIAGRA – + – + + – 1 3 GAIN = 1 V+ VBIAS IRES IRES RSET GND MASTER OSCILLATOR PROGRAMMABLE DIVIDER (N = 1, 2 OR 4) VRES = 1V ±5% (V+ – VSET) THREE-STATE INPUT DETECT GND V+ 15µA 6905x BD 15µA OUT OE fMO DIVIDER SELECT 5 DIV 4 2 fOSC = fMO N PI FU CTIO S V+ (Pin 1): Voltage Supply (2.7V ≤ V+ ≤ 5.5V). This supply must be kept free from noise and ripple. It should be bypassed directly to the GND (Pin 2) with a 0.1µF capacitor or higher. GND (Pin 2): Ground. Should be tied to a ground plane for best performance. OE (Pin 3): Output Enable. Pull to V+ or leave floating to enable the output driver (Pin 5). Pull low to disable the output. The output is disabled asynchronously. Pulling OE pin low will immediately disable the output. Pulling the OE pin high will bring the output high on the next low to high transition of the clock. This eliminates pulse slivers. DIV (Pin 4): Divider-Setting Input. This three-state input selects among three divider settings. Pin 4 should be tied to V+ for the ÷1 setting, the highest frequency range. Float- ing Pin 4 divides the master oscillator by 2. Pin 4 should be tied to GND for the÷4setting,thelowestfrequencyrange. To detect a floating DIV pin, the LTC6905 attempts to pull the pin toward midsupply. This is realized with two internal current sources, one tied to V+ and Pin 4 and the other one tied to ground and Pin 4. Therefore, driving the DIV pin high requires sourcing approximately 15µA. Likewise, driving DIV low requires sinking 15µA. When Pin 4 is floated, it should be bypassed by a 1nF capacitor to ground or it should be surrounded by a ground shield to prevent excessive cou- pling from other PCB traces. OUT (Pin 5): Oscillator Output. This pin can drive 5kΩ and/or 5pF loads. For heavier loads, refer to the Applica- tions Information section. Table 1. LTC6905-XXX Frequency Settings DIV SETTING LTC6905-133 LTC6905-100 LTC6905-96 LTC6905-80 V+ 133.33MHz 100MHz 96MHz 80MHz OPEN 66.66MHz 50MHz 48MHz 40MHz GND 33.33MHz 25MHz 24MHz 20MHz |
Similar Part No. - LTC6905CS5-80 |
|
Similar Description - LTC6905CS5-80 |
|
|
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 |