ML6426 is a family of triple video filters with buffered outputs. There are several versions of the ML6426, each with different passband cut-off frequencies. Each channel contains a 4th order Butterworth lowpass reconstruction video filter. All input signals are AC coupled into the ML6426. All channels have DC restore circuitry to clamp the DC input levels during video H-sync. Each output can drive 2V P-P into a 150Ω load. All channels have a gain of 2 (6dB) at 1V P-.
The Fairchild ML6426 is a family of triple monolithic continuous time video filters featuring buffered outputs optimized for reconstructing video signals from DAC sources. The device supports both RGB and YUV formats, adhering to ATSC Digital Television and VESA standards.
Key features include multiple filter options with passband cut-off frequencies ranging from 6.7MHz to 36MHz (and a specific 15MHz variant), allowing the chip to handle various line rates. The ML6426 incorporates internal cable drivers, DC restore circuitry with minimal tilt, and high ESD protection up to 2kV.
| Differential Gain | 0.4% |
|---|---|
| Total Harmonic Distortion | 0.8% at 1 MHz |
| ESD Protection | >2kV |
The device supports RGB and YUV filters for ATSC Digital Television and VESA Standard.
The ML6426 family offers versions with passband cut-off frequencies of 6.7MHz, 12MHz, 24MHz, 30MHz, and 36MHz.
Yes, an external H-syn signal is required for the DC restore purpose.