The MAX7453 is a low-cost, triple-channel video reconstruction filter for S-video and CVBS video-signal applications. This device is ideal for anti-aliasing and DAC smoothing video applications such as set-top boxes, DVD players, hard-disk recorders (HDRs), and personal video recorders.
The MAX7453 is a low‑cost, triple‑channel video reconstruction filter and buffer designed for composite (CVBS) and S‑Video (Y/C) signals. It operates from a single +5 V supply and is optimized for NTSC, PAL, and standard‑definition TV systems, providing anti‑aliasing and DAC smoothing for set‑top boxes, DVD players, HDRs, and digital VCRs.
The datasheet includes absolute maximum ratings, electrical characteristics, pin functions, detailed circuit operation, layout recommendations, and package dimensions. It specifies typical performance such as a 42 dB stopband attenuation at 27 MHz, a passband response of –0.6 dB to 0 dB from 100 kHz to 4.2 MHz, and the ability to drive one 150 Ω load per YOUT/COUT channel or two 150 Ω loads on the CVOUT channel.
| Supply Voltage Range | 4.75 V – 5.25 V |
|---|---|
| Stopband Attenuation | 42 dB (typ) at 27 MHz |
| Maximum Current into Any Pin | 450 mA |
The device operates from a single +5 V supply, with a recommended voltage range of 4.75 V to 5.25 V.
The filter provides a typical stopband attenuation of 42 dB at 27 MHz.
The absolute maximum rating permits up to 450 mA into any pin except VCC and GND.