MOST ® Transmitter NT2103x

       
       
  Main Features   General Description
       
Up to 40 mA drive current   The NT2103x is a full-custom CMOS IC designed for high-speed RCLED, LED or VCSEL drive in MOST® applications.

In order to make the NT2103x as flexible as possible there are multiple features that can be programmed:



• Optical Emitter type – different output stages can be engaged for different emitter types.
• Temperature compensation – to minimise the effects of temperature on the output power of a specific device.
• Pulse width adjust – to compensate for optical-emitters with different rise and fall times.
• Peaking – for LEDs peaking can be useful for improving the 'on' time. The amount of peaking can be varied.

The drive current can be set by an external Resistor.
     
Fabricated in standard high-volume, low cost, 'digital' CMOS process  
     
Compatible with the latest MOST specs  
     
Less than 48 mA total current consumption (assuming 40 mA drive current)  
     
Single ended TTL input  
     
Supports all optical-emitter types, with programmed on-chip temperature compensation and pulse width adjust  
     
Supports both 3.3 V and 5 V supplies  
     
High temperature operation (up to 120°C junction temperature)  
     
Sleep Current less than 1 mA (can be disabled)  
     
No external components within FOT required  
 
 
 

Chip Padout

Bare die – 990 µm x 860 µm (including scribe)
Pad pitch 150 µm, pad size 96 µm
 
 
 

Functional Block Diagram

See MOST receiver – NT21010
   
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Nanotech Semiconductor Ltd
2, West Point Court, Great Park Road
Bradley Stoke | Bristol BS32 4PY | England
Tel: +44-1454-462200 | Fax: +44-1454- 462201
www.nanosemi.co.uk