AD8128
Info: : PRODUCTION
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AD8128

CAT-5 Receiver with Adjustable Line Equalization

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 3
1ku List Price Starting From $3.08
Features
  • Tuned to compensate for Category-5 (CAT-5) cable losses
    • Up to 100 meters at 120 MHz
  • 2 voltage controlled frequency response adjustment pins
    • High frequency peaking adjustment
    • Broadband gain adjustment
  • 2700 V/μs slew rate
  • Low output noise
    • 1.5 mV rms integrated noise (1 GHz) at 100 meters equalized bandwidth
  • DC output offset adjust
    • Low offset voltage error: 7 mV typ
  • Equalized pass-band ripple ±1 dB to 70 MHz
  • Input: differential or single ended
  • Supply current: 24 mA on ±5 V
  • Small 8-lead 3 mm × 3 mm LFCSP
Additional Details
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The AD8128 is a high speed, differential receiver/equalizer that compensates for the transmission losses of unshielded twisted pair (UTP) CAT-5 cables. Various frequency dependent gain stages are summed together to best approximate the inverse frequency response of CAT-5/CAT-5e cable. An equalized bandwidth of 120 MHz can be achieved for 100 meters of cable.

The AD8128 can be used as a standalone receiver/equalizer or in conjunction with the AD8143, triple differential receiver, to provide a complete low cost solution for receiving RGB over UTP cable in such applications as KVM.

The AD8128 has three control pins for optimal CAT-5/CAT-5e compensation. The equalized cable length is directly proportional to the voltage applied to the VPEAK pin, which controls the amount of high frequency peaking. VGAIN adjusts the broadband gain from 0 dB to 3 dB, compensating for the resistive cable loss. VOFFSET allows the output to be shifted by ±2.5 V, adding flexibility for dc-coupled systems.

Low integrated output noise and offset voltage adjust make the AD8128 an excellent choice for dc-coupled wideband RGB-overCAT-5 applications. For systems where the UTP cable is longer than 100 meters, two AD8128 devices can be cascaded to compensate for up to 200 meters of CAT-5/CAT-5e.

The AD8128 is available in a 3 mm × 3 mm 8-lead LFCSP and is rated to operate over the extended temperature range of −40°C to +85°C.

Applications

  • Keyboard-video-mouse (KVM)
  • RGB video over unshielded twisted pair (UTP) cable receivers
  • Professional video projection and distribution
  • Security video
Part Models 3
1ku List Price Starting From $3.08

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD8128ACPZ-R2
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AD8128ACPZ-R7
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AD8128ACPZ-RL
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Product Lifecycle

PCN

Feb 13, 2014

- 14_0038

Conversion of 3x3mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.

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Part Models

Product Lifecycle

PCN

Feb 13, 2014

- 14_0038

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Conversion of 3x3mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.

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