 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
FMS6408MTC149 Datasheet(PDF) 7 Page - Fairchild Semiconductor |
|
||||||||||||||||||||||||||||||
FMS6408MTC149 Datasheet(HTML) 7 Page - Fairchild Semiconductor |
|
|
7 / 11 page  © 2004 Fairchild Semiconductor Corporation www.fairchildsemi.com FMS6408 Rev. 3.0.0 7 Functional Description Introduction This product is a three-channel monolithic continuous time video filter designed for reconstructing YUV, YC CV, or RGB signals from a video D/A source. Inputs should be AC coupled while outputs can be either AC or DC coupled. The reconstruction filters approximate a 5 th-order Butterworth response, optimized for minimum overshoot and flat group delay. This provides a maximally flat response in terms of delay and amplitude. Each of the three outputs is capable of driving 2VPP into 75Ω loads. All channels are clamped during the sync interval to set the appropriate DC output level. Sync tip clamping greatly reduces the effective input time constant, allowing the use of small, low-cost input coupling capacitors. The input settles to 10mV in 2ms for typical DC shifts present in the video signal. In most applications, the input coupling capacitors are 0.1µF. The inputs typically sink 1µA of current during active video. For YUV signals, this translates into a 2mV tilt in a horizontal line at the Y output. During sync, the clamp restores this leakage current by sourcing an average of 20µA over the clamp interval. Any change in the coupling capacitor values affects the amount of tilt per line. Any reduction in tilt comes with an increase in settling time. Inputs The inputs are typically be driven by either a low- impedance source of 1Vpp or the output of a 75Ω terminated line driven by the output of a current DAC. In either case, the inputs must be capacitively coupled to allow the sync-detect and DC-restore circuitry to operate properly. Outputs The outputs are low-impedance voltage drivers that can handle either a single or dual load. A single load consists of a 75Ω-series termination resistor feeding a 75Ω-terminated line for a total load at the part of 150Ω. Even when two loads are present (75Ω) the driver produces a full 2VPP signal at its output pin. The driver can also be used to drive an AC coupled single or dual load. When driving a dual load, either output functions if the other output connection is inadvertently shorted, providing these loads are AC coupled. |
Similar Part No. - FMS6408MTC149 |
|
Similar Description - FMS6408MTC149 |
|
|
|
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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
