Zakładka z wyszukiwarką danych komponentów |
|
GS4981-CKA Arkusz danych(PDF) 1 Page - Gennum Corporation |
|
GS4981-CKA Arkusz danych(HTML) 1 Page - Gennum Corporation |
1 / 14 page Document No. 520 - 23 - 03 DATA SHEET GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. (905) 632-2996 fax: (905) 632-2055 Japan Branch: A-302 Miyamae Village, 2-10-42 Miyamae, Suginami-ku, Tokyo 168, Japan tel. (03) 3247-8838 fax (03) 3247-8839 FEATURES GS1881, GS4881, GS4981 Monolithic Video Sync Separators DESCRIPTION The GS1881, GS4881 and GS4981 are general purpose sync separators for use in a wide variety of video applications. The devices extract the timing information from composite video signals with scan rates from 15 to 130 kHz. The GS1881 is a drop-in replacement for the industry standard LM1881 with much improved performance. The device generates composite sync, vertical sync, back porch and odd/even field signals. The GS4881 is identical to the GS1881 but features a noise immune back porch pulse which maintains a constant H rate during the vertical interval. The GS4981 is identical to the GS4881, except that it provides horizontal sync in place of the odd/even output. All three devices feature a self-adjusting windowing circuit for noise immunity, which synchronizes to H rate. This windowing circuit determines the odd or even field in the GS1881 and GS4881, gates the back porch pulse in the GS4881 and GS4981, and generates the horizontal sync output in the GS4981. The devices feature an improved input stage which ensures that the input signal is sliced at a predictable point due to well-controlled input clamp discharge current and sync slicing level. A missing pulse detector enables the devices to recover quickly from impulse noise disturbances by temporarily increasing the clamp discharge current by roughly ten times. The input stage will operate with signals from 0.5 to 4 volts peak to peak with a 5 volt supply. The GS1881, GS4881 and GS4981 also feature a predictable vertical output pulse width with a default trigger for non-standard video signals. All three are available in commercial and industrial temperature ranges and are packaged in both DIP and SOIC. • noise tolerant odd/even flag, back porch and horizontal sync pulse • fast recovery from impulse noise • excellent temperature stability • 0.5 V to 4 Vpp input signal amplitude with 5 V supply • well-controlled clamp discharge current and slicing level • programmable horizontal scan rate (up to 130 kHz) • composite, vertical, back porch, odd/even (GS1881, GS4881), horizontal (GS4981) outputs • predictable vertical output pulse width with default trigger for non-standard video signals • 5 V to 12 V supply voltage range • pin compatible with LM1881 sync separator APPLICATION CHOOSE DEVICE: Direct LM1881 Replacement GS1881 with Improved Performance New Applications GS4881 Substitution for LM1881 New Applications Requiring GS4981 Horizontal Sync Output SELECTION CHART R SET BACK PORCH ODD/EVEN GROUND V cc 8 PIN DIP 8 PIN SOIC COMPOSITE SYNC OUT COMPOSITE VIDEO IN VERTICAL SYNC OUT 1 2 3 4 8 7 6 5 R SET BACK PORCH GROUND V cc 8 PIN DIP 8 PIN SOIC GS4981 COMPOSITE SYNC OUT COMPOSITE VIDEO IN VERTICAL SYNC OUT 1 2 3 4 8 7 6 5 HORIZONTAL GS1881, GS4881 PIN CONNECTIONS Revision Date: October 1995 Patent No. 5,432,559 |
Podobny numer części - GS4981-CKA |
|
Podobny opis - GS4981-CKA |
|
|
Link URL |
Polityka prywatności |
ALLDATASHEET.PL |
Czy Alldatasheet okazała się pomocna? [ DONATE ] |
O Alldatasheet | Reklama | Kontakt | Polityka prywatności | Linki | Lista producentów 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 |