Datasheet4U Logo Datasheet4U.com

XR-2279 - Dot and Bar-Graph Display Generators

Datasheet Summary

Description

FUNCTIONAL BLOCK DIAGRAM The XR-2279 is a 12 point logarithmic dot or bar-graph generator/LED driver_ The device compares an input signal with an adjustable reference and graphically displays the results_ Since LED driving current is provided by on board adjustable current sources, no current lim-

Features

  • Direct LED Interface Constant Three dB/Step Logarithmic Scale External Dot/Bar Mode Select for Dot/Bar-Graph Formats Adjustable Output Current Levels Current Source Outputs.

📥 Download Datasheet

Datasheet preview – XR-2279

Datasheet Details

Part number XR-2279
Manufacturer Exar
File Size 274.35 KB
Description Dot and Bar-Graph Display Generators
Datasheet download datasheet XR-2279 Datasheet
Additional preview pages of the XR-2279 datasheet.

📁 Similar Datasheet

  • XR-2206 - Monolithic Function Generator (Exar Corporation)
  • XR-2207 - Voltage-Controlled Oscillator (Exar Corporation)
  • XR-2208 - OPERATIONAL MULTIPLIER (Exar Corporation)
  • XR-2209 - Voltage-Controlled Oscillator (Exar Corporation)
  • XR-2211 - FSK Demodulator/ Tone Decoder (Exar Corporation)
  • XR-2211A - FSK Demodulator/Tone Decoder (Exar Corporation)
  • XR-2212 - Precision Phase-Locked Loop (Exar Corporation)
  • XR-2240 - PROGRAMMABLE TIMER / COUNTER (Exar Corporation)
  • XR-2264 - (XR-2264 / XR-2265) Pulse Proportional Servo Circuit (Exar Corp)
  • XR-2265 - (XR-2264 / XR-2265) Pulse Proportional Servo Circuit (Exar Corp)
Other Datasheets by Exar
  • XR-2271 - Fluorescent Display Driver
  • XR-2272 - High-Voltage 7-Digit Display Driver
  • XR-2276 - Bar Graph Display Generator
  • XR-2277 - Dot and Bar Graph Display Generators
  • XR-2278 - Dot and Bar Graph Display Generators
  • XR-2200 - Hammer Driver
  • XR-2201 - High Voltage High Current Darlington Transistor Arrays
  • XR-2202 - High Voltage High Current Darlington Transistor Arrays

Full PDF Text Transcription

Click to expand full text
XR·2279 Dot and Bar-Graph Display Generators GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM The XR-2279 is a 12 point logarithmic dot or bar-graph generator/LED driver_ The device compares an input signal with an adjustable reference and graphically displays the results_ Since LED driving current is provided by on board adjustable current sources, no current lim- iting resistors are required. A special feature of the XR2279 is the four highest outputs sink one half the current of the lower eight; this allows equivalent brightness with red and green mixed displays. Dot or bar mode selection is provided. The twelve out- put levels are in 3 dB steps from - 27 dB to + 6 dB. The reference point is externally adjustable.
Published: |