Electronic Components Datasheet Search |
|
PI6C5916004ZHIE Datasheet(PDF) 9 Page - Pericom Semiconductor Corporation |
|
PI6C5916004ZHIE Datasheet(HTML) 9 Page - Pericom Semiconductor Corporation |
9 / 12 page 9 PI6C5916004 Rev C 10/27/2014 PI6C5916004 6 GHz 1:4 LVPECL Fanout Buffer with Internal Termination Device LVPECL Output Terminations LVPECL Output Popular Termination The most popular LVPECL termination is 150ohm pull-down bias and 100ohm across at RX side. Please consult ASIC data- sheet if it already has 100ohm or equivalent internal termina- tion. If so, do not connect external 100ohm across as shown in Fig. 8. This popular termination’s advantage is that it does not allow any bias through from VDD. This prevents VDD system noise coupling onto clock trace. LVPECL Output Thevenin Termination Fig. 9 shows LVPECL output Thevenin termination which is used for shorter trace drive (<5in.), but it takes VDD bias current and VDD noise can get onto clock trace. It also requires more component count. So it is seldom used today. Fig. 8 LVPECL Output Popular Termination Fig. 9 LVPECL Thevenin Output Termination LVPECL Output AC Thevenin Termination LVPECL AC Thevenin terminations require a 150ohm pull- down before the AC coupling capacitor at the source as shown in Fig. 10. Note that pull-up/down resistor value is swapped compared to Fig. 9. This circuit is good for short trace (<5in.) application only. LVPECL Output Drive HCSL Input Using the LVPECL output to drive a HCSL input can be done using a typical LVPECL AC Thenvenin termination scheme. Use pull-up/down 450/60ohm to generate Vcm=0.4V for the HCSL input clock. This termination is equivalent to 50Ohm load as shown in Fig. 11. Fig. 11 LVPECL Output Drive HCSL Termination Fig. 10 LVPECL Output AC Thenvenin Termination 14-0181 |
Similar Part No. - PI6C5916004ZHIE |
|
Similar Description - PI6C5916004ZHIE |
|
|
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 |