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Main Features |
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General Description |
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Up to 8 mA modulation current |
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The NT24030 is a full-custom CMOS IC designed for high-speed VCSEL drive for applications such as IEEE-1394b S400, S800 and GbE over POF or PCS. In order to make the NT24030 as flexible as possible there are multiple features that can be programmed using metal mask options:
| • Temperature compensation – to minimise the effects of temperature on the optical output power of a specific device. |
| • Pulse width adjust – to compensate for emitters with unmatched rise and fall times. |
| • Peaking – for VCSELs peaking can be useful for improving the 'n' time. The amount of peaking can be varied. |
The drive current is set by an external resistor using the IMODSET pad or using an on-chip resistor by connecting IMODSET to GND. 3 dB optical power reduction functionality is also supported by connecting this pad to VDD.
The NT24030 driver IC will be supplied in die form, with a clearly visible orientation. |
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Fabricated in standard high-volume, low cost, 'digital' CMOS process |
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Less than 15 mA total current consumption (excluding drive current) |
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Sleep Current less than 20 µA (sleep mode can be disabled) |
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Differential LVDS type input |
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Supports VCSELs with mask-programmed on-chip Temperature Compensation and Pulse Width Adjust.3.3 V supply |
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High temperature operation (up to 125 °C junction temperature) |
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No external components within FOT required |
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Chip Padout
Bare die – 1080 µm x 900 µm (including 80 µm scribe lane)
150 µm pad pitch, 96 µm pads (86 µm passivation opening) |
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Functional Block Diagram
back to LED/Driver Products |
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