GB4570-CKA, GB4571, GB45715883 Selling Leads, Datasheet
MFG:GENNUM Package Cooled:SOIC-8 D/C:04+
GB4570-CKA, GB4571, GB45715883 Datasheet download
Part Number: GB4570-CKA
MFG: GENNUM
Package Cooled: SOIC-8
D/C: 04+
GB4570-CKA, GB4571, GB45715883
- Table of contents:
Info of GB4570-CKA
Info of GB4571
Info of GB45715883
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About GB4570-CKA
PDF/DataSheet Download
Datasheet: GB4570-CKA
File Size: 152944 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About GB4571
PDF/DataSheet Download
Datasheet: GB4571
File Size: 153140 KB
Manufacturer:
Download : Click here to Download
About GB40931
PDF/DataSheet Download
Datasheet: GB40931
File Size: 436395 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
GB4571 General Description
The GB4571 is a high performance video buffer with DC restore used primarily for accurate back porch clamping. Key features include operation from ±4.5 V to ±13.2 V supply voltages, fast recovery from sudden changes in DC offset, ±0.1 dB flatness to 80 MHz and availability of industry standard DIP and SOIC packages.
In the typical back porch clamping application, a negative going back porch pulse from an external sync separator (such as the GS4881 or GS4882) is applied to the GB4571's STROBE input. While STROBE is low, the GB4571 determines the correct DC level shift that should be applied to the input signal by integrating over the entire back porch period. This reduces sensitivity to noise and improves the accuracy of the DC restoration compared to systems using sample and hold techniques. Typical clamping accuracy of ±1 mV is achieved by the GB4571.
GB4571 Maximum Ratings
|
Parameter |
VALUE |
|
Supply Voltage |
± 13.5 V |
|
Operating Temperature Range |
0°C TA 70 |
|
Storage Temperature Range |
-65 TS 150 |
|
Lead Temperature (Soldering, 10 Sec) |
260 |
|
Differential Video Input Voltage |
± 5 V |
| Strobe Input Voltage |
-VS VSTROBE +VS |
GB4571 Features
• accurate clamping to within ± 1 mV
• less than 1 mV clamping distortion
• variable clamping range (VEE + 3.0 V to VCC - 4.5 V)
• ultra low differential gain and differential phase
• fast recovery from sudden changes in DC offsets
• less than ± 0.15° phase delay variation at 3.58 MHz
• ± 0.1 dB flatness to 80 MHz
• ± 4.5 V to ±13.2 V supply voltage range
• less than 1 mV clamping distortion
• variable clamping range (VEE + 3.0 V to VCC - 4.5 V)
• ultra low differential gain and differential phase
• fast recovery from sudden changes in DC offsets
• less than ± 0.15° phase delay variation at 3.58 MHz
• ± 0.1 dB flatness to 80 MHz
• ± 4.5 V to ±13.2 V supply voltage range
GB4571 Typical Application
• Clamping of NTSC, PAL, SECAM & RGB Video Signals
• Multimedia Graphics Overlay
• Production Switchers
• Linear Keyers
• Multimedia Graphics Overlay
• Production Switchers
• Linear Keyers
GB4571 Connection Diagram
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