P2781/82/84 is a versatile spread spectrum frequency modulator designed specifically for digital camera and other digital video and imaging applications. The P278xA reduces electromagnetic interference (EMI) at the clock source, which provides system wide reduction of EMI of all clock dependent signals.
The P2781/82/84 family is a spread‑spectrum frequency modulator designed to reduce electromagnetic interference (EMI) in digital video, imaging, and networking applications. It provides up to 15 dB of EMI suppression, supports FCC‑approved attenuation methods, and offers selectable spread percentages to minimize system timing error.
The device operates from 3 MHz to 78 MHz, runs on a 3.3 V supply, and is available in 8‑pin SOIC and TSSOP packages suitable for industrial and automotive temperature ranges. Detailed pin configurations, electrical characteristics, and package dimensions are provided for designers.
| Input frequency range | 3 MHz – 78 MHz |
|---|---|
| Operating voltage | 3.3 V (typical), up to 7 V absolute max |
| EMI suppression | up to 15 dB |
| Storage temperature range | -65 °C – +125 °C |
The device accepts input frequencies from 3 MHz to 78 MHz.
It operates typically at 3.3 V, with a supply voltage rating from 3.0 V to 3.6 V and an absolute maximum of 7 V.
It can provide up to 15 dB of EMI suppression.