MAX3841 is a 12.5Gbps 2x2 crosspoint switch IC for high-speed serial data loopback, redundancy, and switching applications. The device features fully differential signal paths and Maxim's second-generation SiGe technology to provide optimum signal integrity, minimizing jitter, crosstalk, and signal skew. MAX3841 is ideal for OC-192 and 10GbE optical module, line card, switch fabric, and similar applications. MAX3841 has a 150mVpp minimum differential input sensitivity and 500mVpp nominal differential output swing. Unused outputs can be individually powered down to conserve power. In addition to functioning as a 2x2 switch, MAX3841 can be configured as a 2:1 multiplexer, 1:2 buffer, or dual 1:1 buffer. MAX3841 is available in a 4mm x 4mm 24-pin thin QFN package and consumes only 215mW with both outputs enabled.
The MAX3841 crosspoint switch provides high‑speed serial data routing, redundancy, and loopback functions for OC‑192 and 10 GbE applications. It features fully differential CML inputs and outputs, independent power‑down of unused outputs, and configurable operation as a 2:1 multiplexer, 1:2 buffer, or dual 1:1 buffer.
The device is supplied in a 4 mm × 4 mm 24‑pin thin QFN package with an exposed pad for thermal grounding. It operates from –40 °C to +85 °C, consumes 215 mW (excluding termination currents), and supports core, input, and output supplies of 1.8 V, 2.5 V, or 3.3 V (core must be 3.3 V).
| Maximum Data Rate | 12.5 Gbps |
|---|---|
| Differential Input Sensitivity | 150 mVp‑p minimum |
| Differential Output Swing | 500 mVp‑p nominal |
| Power Consumption | 215 mW (excluding termination currents) |
| Operating Temperature Range | -40 °C to +85 °C |
| Package Type | 24‑pin thin QFN (4 mm × 4 mm) |
The device operates up to 12.5 Gbps.
CML inputs and outputs can be powered at 1.8 V, 2.5 V, or 3.3 V, while the core supply must be 3.3 V.
Yes, each output can be powered down independently via the ENO1/ENO2 control pins.
It is available in a 4 mm × 4 mm 24‑pin thin QFN package.