The TPF1441 is a low power, 72M HD composite video filter and comparator on a single chip. Drawing less than 11.5mA supply current over the full operating temperature range, TP1441 operates from a single 3.0V to 5.5V power supply. TPF1441 integrate high-performance low-cost 72MHz composite video reconstruction filter, it combine excellent video performance and low power consumption perfectly. It incorporates one high-definition (HD) filter channel. The filter feature sixth-order Butterworth characteristics that are useful as digital-to-analog converter (DAC) reconstruction filters or as analog-to-digital converter (ADC) anti-aliasing filters. The HD filters can be bypassed to support HDCVI 1080i/720p video.

The TPF1441’s on-board comparator incorporates 3PEAK’s proprietary and patented design techniques to achieve the ultimate combination of high-speed (68ns propagation delay under 3.0~5.5V wide supply range) and low power consumption , The internal input hysteresis eliminates output switching due to internal input noise voltage, reducing current draw. The pushpull output supports rail-to-rail output swing, and interfaces with CMOS/TTL logic.

TPF1441 is available in SOP-8 package (TPF1441-SR). Its operation temperature range is from −40°C to +85°C.

Feartures :

 Wide Power Supply: +3.0V to +5.5V Single Supply

 Robust ESD Protection:

 Robust 8kV – HBM and 2kV – CDM ESD Rating

 Green Product, SOP-8 Package Video Filter:

 HDTV Video Filter Support Composite 1080p/60

 Optimized 6th-order Butterworth Video reconstruction filter：

 HD Channel: -3dB BW 72MHz

 Support Multiple Input Biasing:

 Provide 80-mV Level-Shift when DC-Coupled

 Very Low Quiescent Current: 11.5 mA(at 3.3V, Typical)

 6dB Gain(2V/V), Rail to Rail Output

 AC- or DC-Coupled Output Driving Dual Video Loads (75Ω)

Comparator:

 Fast Response Time: 68 ns Propagation Delay

 Offset Voltage: ± 3.0 mV Maximum

 Internal Hysteresis Ensures Clean Switching

 Push-Pull, CMOS/TTL Compatible Output

Applications :

 Video Signal Amplification

 Set-Top Box Video Driver

 PV、DVD Player Video Buffer

 Video Buffer for Portable or USB-Powered Video Devices

 HDTV