Site hosted by Angelfire.com: Build your free website today!

LM3046 NPN Array

Back Home Up Next

LM3046 5-NPN Transistor Array

Overall Summary: The LM3046 NPN (Bipolar) Transistor Array contains 5 medium performance switching transistors suitable for general purpose, low current audio and RF applications up to 30 MHz. Higher frequency operation may benefit from discrete devices with higher FT (e.g. 8 GHz and above)

This IC will be used as a receiver mixer with Radio Frequency (RF) and Local Oscillator (LO) inputs and produce an Audio Frequency (AF) output based on a Direct Conversion (DC) approach. It will also be used as the active component in a Varicap Tuned VCO required for "on frequency" LO synthesis.

  

 

   

 

 

 

Notes

VBE = 0.72 Volts (approximately) at IC = 1 mA, VCE = 3 V and T = 25 C
The temperature gradient of VBE is approximately -1.83 mV / C at IC = 1 mA 
Maximum common emitter current gain (Beta Ratio) hFE = 110 occurs at IC = 4.0 mA
Maximum common emitter Transition Frequency (Frequency where Beta = 1) FT = 580 MHz also occurs at IC = 4 mA.
The LM3046 Array is a general purpose NPN array so its device Noise Figure is not exceptional (NF > 2 dB at RS = 1 kŲ)

Return to Component Data

or 80 meter transceiver

or Ian Scotts Technology Pages