MAX7428/MAX7430/MAX7432 are low-cost, high-performance replacements for standard discrete filter and buffer solutions. They are ideal for anti-aliasing and DAC smoothing video applications, when analog video is reconstructed from a digital data stream.
The MAX7428, MAX7430 and MAX7432 are low‑cost, high‑performance video reconstruction filters and buffers designed for standard‑definition video applications such as set‑top boxes, DVD players, hard‑disk recorders and camcorders. They operate from a single +5 V supply and are specified over a –40 °C to +85 °C temperature range.
These devices provide a 6th‑order low‑pass filter, four levels of high‑frequency boost, input multiplexing, output buffering with 6 dB gain, and a serial Single Pin Bus (MSPB) interface for digital control of channel selection, boost, bypass, and output disable. Package options are 8‑pin SOT‑23 (MAX7428), 10‑pin uMAX (MAX7430) and 14‑pin TSSOP (MAX7432).
| Operating Temperature Range | -40 °C to +85 °C |
|---|---|
| Package (MAX7428) | 8‑pin SOT‑23 |
| Package (MAX7430) | 10‑pin uMAX |
| Package (MAX7432) | 14‑pin TSSOP |
| Passband Frequency Range | 100 kHz to 4.2 MHz |
| Stopband Attenuation | ≥48 dB for f > 27 MHz |
| Input Leakage Current | 10 µA |
MAX7428 is in an 8‑pin SOT‑23 package, MAX7430 in a 10‑pin uMAX package, and MAX7432 in a 14‑pin TSSOP package.
They are specified for –40 °C to +85 °C.
Each filter can drive two 1500 Ω video loads.