 |
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
|
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
LMH1981MT bảng dữ liệu(PDF) 1 Page - National Semiconductor (TI) |
|
|
||||||||||||||||||||||||||||||
LMH1981MT bảng dữ liệu(HTML) 1 Page - National Semiconductor (TI) |
|
|
1 / 13 page  LMH1981 Multi-Format Video Sync Separator General Description The LMH1981 is a high performance multi-format sync sepa- rator ideal for use in a wide range of video applications, such as broadcast and professional video equipment and HDTV/ DTV systems. The input accepts standard analog video signals with either bi-level or tri-level sync, and the outputs provide all of the critical timing signals in CMOS logic, including composite, horizontal, and vertical syncs, burst/back porch timing, odd/ even field, and video format outputs. The horizontal sync output features very low jitter, minimizing external circuitry needed to clean and reduce jitter in subsequent sync pro- cessing stages. The LMH1981 automatically detects the input video format, eliminating the need for programming using a microcontroller or external R SET resistor. The sync separator applies precise 50% sync slicing to ensure accurate sync extraction for inputs with irregular amplitude, offset, and noise conditions. Its unique video format feature (pin 9) outputs the total vertical scan lines per frame as an 11-bit binary serial bit stream, which can be decoded by the video system to de- termine the input video format and enable dynamic adjust- ment of system parameters, i.e.: color space or scaler con- versions. The LMH1981 is available in a 14-pin TSSOP package and operates over the full commercial temperature range. Features n Standard analog video sync separation for NTSC, PAL, SECAM, 480i/p, 576i/p, 720p, 1080i/p, and RGsB from composite (CVBS), S-Video (Y/C), component (YP BPR), and computer video interfaces n Bi-level & tri-level sync compatible n Composite, horizontal, and vertical sync outputs n Burst/back porch timing, odd/even field, and video format Outputs n Superior jitter performance on the H Sync negative-going edge reference n Automatic video format detection n 50% sync slicing of video inputs from 0.5 V PP to2VPP n Macrovision compatible n 3.3V to 5V supply operation Applications n Broadcast and professional video equipment n HDTV/DTV systems n Genlock systems n Video capture & digitization n Set-top boxes (STB) & digital video recorders (DVR) n Video displays Connection Diagram Pin Descriptions Pin No. Pin Name Pin Description 1R EXT Bias Current External Resistor 2, 5, 10 GND Ground 3, 6, 11 V CC Supply Voltage 4V IN Video Input 7 HSOUT Horizontal Sync Output 8 VSOUT Vertical Sync Output 9 VFOUT Video Format Output 12 CSOUT Composite Sync Output 13 BPOUT Burst/Back Porch Timing Output 14 OEOUT Odd/Even Field Output Ordering Information Package Part Number Package Marking Transport Media NSC Drawing 14-Pin TSSOP LMH1981MT LMH1981MT 94 Units/Rail MTC14 LMH1981MTX 2.5k Units Tape and Reel 14-Pin TSSOP 20174501 Top View FIGURE 1. Pinout PRELIMINARY April 2006 © 2006 National Semiconductor Corporation DS201745 www.national.com |
Số phần tương tự - LMH1981MT |
|
Mô tả tương tự - LMH1981MT |
|
|
|
Link URL |
| Chính sách bảo mật |
| ALLDATASHEET.VN |
| Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất 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 |
Vietnamese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
