Up to 25 mA modulation current.

The NT22031 is a full-custom CMOS IC designed for high-speed RCLED drive for applications such as Fast Ethernet and 250 Mbps over POF.

The drive current can be set by an external resistor (defined as two 15 kΩ resistors in parallel) using the I MODSET pad or using an on-chip resistor by connecting I MODSET to GND. 3dB optical power reduction functionality is also supported by connecting this pad to VCC.

The NT22031 driver IC will be supplied in die form, with a clearly visible orientation.

Fabricated in standard high-volume, low cost, mixed signal CMOS process.

Less than 14.5 mA total current consumption (excluding drive current).

Sleep Current less than 30 µA (sleep mode can be disabled)

Differential LVDS input with AC-coupled CML compatibility.

Supports RCLED emitters, with mask-programmed on-chip Temperature Compensation and Pulse Width Adjust.

3.3 V supply.

High temperature operation (up to 125 °C junction temperature).

No external components within FOT required.

Chip Padout

Figure 1 - Bare die – 1000 µm x 820 µm plus 80 µm scribe lane
150 µm pad pitch, 96 µm pads (86 µm passivation opening)