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MAX7443 Folha de dados(PDF) 1 Page - Maxim Integrated Products |
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MAX7443 Folha de dados(HTML) 1 Page - Maxim Integrated Products |
1 / 8 page General Description The MAX7443/MAX7444 are low-cost, triple-channel video reconstruction filters for S-video and CVBS video signals. These devices are ideal for anti-aliasing and DAC smoothing video applications such as set-top boxes, DVD players, hard-disk recorders (HDRs), and personal video recorders. These filters operate from a single +5V supply. They are optimized for NTSC, PAL, and standard-definition digital TV (SDTV) video systems. Each channel consists of a lowpass filter and an adjustable-gain output buffer capable of driving two standard 150 Ω video loads. The output buffers can drive either an AC or a DC load such that the blanking level voltage after the backmatch resistor is less than 1V. The Y and C video inputs are summed to produce the com- posite video output. The MAX7444 offers high- frequency boost to improve picture sharpness. The MAX7443 has a maximum flat-frequency response. The MAX7443/MAX7444 are available in a tiny 8-pin thin QFN and an 8-pin SO package with exposed pad, and are fully specified over the -40°C to +85°C extended temperature range. Applications Features o Triple-Channel Filter and Buffer for CVBS and Y/C (S-Video) o Filter Response Ideal for NTSC, PAL, and Interlaced SDTV Signals o 41dB (typ) Stopband Attenuation at 27MHz o -0.3dB (typ) Passband Response o Low Blanking Level Voltage Allows DC-Coupled Output o Each Channel Drives Two 150Ω Video Loads o +5V Single-Supply Voltage o Tiny 8-Pin Thin QFN or 8-Pin SO Packages Triple-Channel Video Reconstruction Filter and Buffer for Composite and Y/C Outputs ________________________________________________________________ Maxim Integrated Products 1 Ordering Information 19-2749; Rev 0; 1/03 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. PART TEMP RANGE PIN-PACKAGE TOP MARK MAX7443ETA -40°C to +85°C 8 Thin QFN-EP* AFX MAX7443ESA -40°C to +85°C 8 SO-EP* — MAX7444ETA -40°C to +85°C 8 Thin QFN-EP* AFY MAX7444ESA -40°C to +85°C 8 SO-EP* — D/A CIN LOWPASS FILTER LOWPASS FILTER YIN D/A 6dB/ 9.5dB/ 12dB 6dB/ 9.5dB/ 12dB 6dB/ 9.5dB/ 12dB Σ GSET COUT CVOUT YOUT * * * * * * *OPTIONAL GND VCC ENCODER MAX7443 MAX7444 Functional Diagram Set-Top Boxes/HDR/DVD Security Cameras/Digital Cameras Game Consoles Digital VCRs Every Composite, S-Video Output for NTSC, PAL, SDTV *EP = Exposed pad. Selector Guide appears at end of data sheet. |
Nº de peça semelhante - MAX7443 |
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Descrição semelhante - MAX7443 |
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