TI THS7303PWR

Fabricated using the new complementary silicon-germanium (SiGe) BiCom-3 process, the THS7303 is a low-power, single-supply, 2.7-V to 5-V, 3-channel integrated video buffer. It incorporates a selectable fifth-order Butterworth filter to eliminate data converter images. The 9-MHz filter is a perfect choice for SDTV video including composite (CVBS), S-Video, and 480i/576i YPBPR and G'B'R' (R'G'B) signals. The 16-MHz filter is ideal for EDTV 480p/576p YPBPR, G'B'R', and VGA signals. The 35-MHz filter is useful for HDTV 720p/1080i YPBPR, G'B'R', and SVGA/XGA signals. For 1080p or SXGA/UXGA signals, the filter can be bypassed allowing a 190-MHz bandwidth, 300-V/μs amplifier to buffer the signal. Each channel of the THS7303 is individually I²C configurable for all functions which makes it flexible for any application. Its rail-to-rail output stage allows for both ac and dc coupling applications. The 6-dB gain along with the built-in SAG correction allows for maximum flexibility as an output video buffer. The 16.6 mA total quiescent current (55 mW total power) makes the THS7303 an excellent choice for USB powered or portable video applications. While fully disabled, the THS7303 consumes less than 1 μA making it ideal for energy sensitive applications. As part of the THS7303 flexibility, the 2:1 MUX input can be selected for ac- or dc-coupled inputs. The ac-coupled modes include a sync-tip-clamp option for CVBS/Y/G'/B'/R' with sync or a fixed bias for the C'/PB'/PR' non-sync channels. The dc input options include a dc input or a (dc + 135-mV) input offset shift to allow for a full sync dynamic range at the output with 0-V input.

• 3-Video Amplifiers for CVBS, S-Video Y'U'V', SD/ED/HD Y'PB'PR', and G'B'R' (R'G'B')
• I²C Control of All Functions
• Integrated Low-Pass Filters: 5th-Order Butterworth Characteristics
• Selectable Corner Frequencies of 9-MHz, 16-MHz, 35-MHz, and Bypass (190-MHz)
• Selectable Input Bias Modes: AC-Coupled with Sync-Tip-Clamp, AC-Coupled with Bias, DC-Coupled with 135-mV Input Shift, DC-Coupled
• 2:1 Input MUX Allows Multiple Input Sources
• Built-in 6-dB Gain (2 V/V)
• SAG Correction Capable
• 2.7-V to 5-V Single Supply Operation
• Low 16.6-mA (3.3 V) Total Quiescent Current
• Individual Disable (<1 μA) and Mute Control
• Rail-to-Rail Output: Output Swings within 100 mV from the Rails to Allow AC or DC Output Coupling
• Supports Driving Two Lines per Channel
• Low Differential Gain/Phase of 0.13%/0.55°

• Set Top Box Output Video Buffering
• PVR/DVDR Output Buffering
• USB/Portable Low Power Video Buffering