1 plc mimo line driver ISL15110 the ISL15110 is a dual port differential line driver developed for power line communication (plc) multi input multi output (mimo) applications. mimo plc re quires transmission on one or two pairs of phase, neutral, and ground wires. the device is designed to drive heavy line loads, while maintaining a high level of linearity required in ofdm pl c modem links. with 15.5dbm of total mimo transmit signal power (12.5dbm per each pair) into a 50 ? line load, the drivers deliver -50db average mtpr distortion across the output spectrum. each of the two differential drivers has a control pin used to enable/disable its differential output. these controls allow for independent tdm operation of the two differential drivers, as required in itu-t mimo g.hn and related standard based plc applications. in disable mode, the line driver output maintains a high impedance characteristic to not affect tdm receive signal integrity. the ISL15110 includes an external ibias pin for quiescent current flexibility. grounding th e pin in single supply designs gives the nominal currents in the ?electrical specifications? table on page 6, while inserting a resist or from pin to ground can be used to scale down the quiescent current for both ports. the ISL15110 is available in the thermally-enhanced 20 ld qfn and is specified for operation over the full -40c to +85c temperature range. features ? dual differential drivers ? 50mhz broadband plc g.hn ? enable/disable control pins for tdm operation ? -50dbc average mtpr distortion ? single supply +12v nominal operation ? enhanced surge current handling capability ? thermally enhanced 20 ld qfn package ? enable port control voltage <0.7v ? disable port control voltage >1.7v applications ? home networking over power lines ? itu-t g.hn (g.9963) mimo plc fbb fba outa enab inb ina ind inc + + - - + + - -fbc fbd outd encd +vs outb +vs gnd outc ibias rr r r 6.2k 6.2k 6.2k 6.2k figure 1. block diagram figure 2. siso 15.5dbm, 2mhz to 50mhz mtpr test frequency (hz) -65 -60 -55 -50 -45 -40 -35 0 10m 20m 30m 40m 50m 11pt running average m t p r ( d b c ) caution: these devices are sensitive to electrostatic discharge; follow proper ic handling procedures. 1-888-intersil or 1-888-468-3774 | copyright intersil americas llc 2013. all rights reserved intersil (and design) is a trademark owned by intersil corporation or one of its subsidiaries. all other trademarks mentioned are the property of their respective owners. january 31, 2013 fn8282.0
ISL15110 2 intersil products are manufactured, assembled and tested utilizing iso9000 quality systems as noted in the quality certifications found at www.intersil.com/en/suppor t/qualandreliability.html intersil products are sold by description only. intersil corporat ion reserves the right to make changes in circuit design, soft ware and/or specifications at any time without notice. accordingly, the reader is cautioned to verify that data sheets are current before placing orders. information furnished by intersil is believed to be accurate and reliable. however, no responsi bility is assumed by intersil or its subsid iaries for its use; nor for any infringem ents of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of i ntersil or its subsidiaries. for information regarding intersil corporation and its products, see www.intersil.com fn8282.0 january 31, 2013 for additional products, see www.intersil.com/en/products.html typical application circuit figure 3. typical application circuit (1 of 2 ports) 3.9 500 +12v + - 500 + - 3.9 1:1.7 fbb fba outa outb ina inb + ? ISL15110 +vs/2 60.4 0.44v p-p 21.2v p-p ? ISL15110 7.8v p-p 200 p line = 15.5dbm [siso] cf = 5.62v p-p /v rms r l(diff) = 29.5 at transformer inputs 6.2k 6.2k 100nf 100nf ibias 0.4db insertion loss z line 100 4.7f enab 0.1f +vs maximum
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