The MAX3804 driver with integrated analog equalizer compensates up to 20dB of loss at 5GHz. It is designed to ensure PC board signal integrity up to 12.5Gbps, where frequency-dependent skin effect and dielectric losses typically produce unacceptable amounts of inter-symbol interference. The MAX3804 can extend the practical chip-to-chip transmission distance for 10Gbps NRZ serial data up to 30in (0.75m) on FR-4, and it significantly decreases deterministic jitter. Residual jitter after equalization for 10.7Gbps signals is typically 24psP-P on the maximum path length. The MAX3804 is ideal for 10Gbps chip-to-chip serial interconnections on inexpensive FR-4 material. Its 3mm×3mm package affords optimal placement and routing flexibility. It has separate VCC connections for internal logic and current-mode logic (CML) I/O. This allows the CML input and output to be referenced to isolated supplies, providing independent DC-coupled interfacing to 1.8V, 2.5V, or 3.3V ICs. Eight discrete levels of input equalization can be selected through a digital control input, enabling the equalizer to be matched to a range of transmission line path loss. When correctly set to match the path loss, the MAX3804 provides optimal performance over a wide range of data rates and formats. Applications include OC-192 and 10Gb Ethernet switches and routers, OC-192 and 10Gb Ethernet serial modules, high-speed signal distribution.
The MAX3804 is a driver with an integrated analog equalizer that compensates up to 20 dB loss at 5 GHz, ensuring signal integrity on PC‑board traces up to 12.5 Gbps. It is intended for high‑speed chip‑to‑chip serial interconnections on inexpensive FR‑4 material, offering eight selectable equalization levels to match transmission‑line loss.
Key specifications include a data rate up to 12.5 Gbps, operating power of 115 mW, residual jitter under 30 ps P‑P, and a 3 mm × 3 mm thin QFN package. The device operates from –40 °C to +85 °C and requires a core supply of +3.3 V with separate input and output supplies of +1.8 V to +3.3 V.
| Maximum Data Rate | 12.5 Gbps |
|---|---|
| Operating Power | 115 mW |
| Residual Jitter | <30 ps P‑P |
| Equalization Levels | 8 discrete levels (3‑bit control) |
| Package | 3 mm × 3 mm Thin QFN |
| Supply Voltage (VCC) | +3.0 V to +3.6 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Supply Current (ICC) | 35‑50 mA |
The MAX3804 supports data rates up to 12.5 Gbps.
The core supply (VCC) must be between +3.0 V and +3.6 V, with input and output supplies of +1.8 V to +3.3 V.
Eight discrete equalization levels are selectable via a 3‑bit LVTTL input.
The device operates from –40 °C to +85 °C.