ISL1539 ® Data Sheet February 12, 2007 Dual Channel Differential VDSL2 Line Driver FN7516.2 Features • 450mA output drive capability The ISL1539 is to be used for high performance long reach and high speed applications, including ADSL2, ADSL2+, and VDSL2 20dBm. The ISL1539 is an integral part of the signal chain. The driver has been optimized for flat gain response and reduced harmonic distortion and noise in the bands of interest to improve the overall signal to noise in the system. These drivers achieve a total harmonic distortion (THD) measurement of typically -60dB MTPR @ 1.1MHz, while consuming typically 10mA per DSL channel of total supply current. This supply current can be set using a resistor on the IADJ pin. Two other pins (C0 and C1) can also be used to adjust supply current to one of four pre-set modes (full-IS, 3/4-IS, 1/2-IS, and full power-down). The ISL1539 operates on ±5V to ±15V supplies and retains its bandwidth and linearity over the complete supply range. The device is supplied in the small footprint (4mmx5mm) 24 Ld QFN package and is specified for operation over the full -40°C to +85°C temperature range. • 44.1VP-P differential output drive into 100Ω • -85dBc THD @ 1MHz 2VP-P • High slew rate of 1200V/µs differential • Bandwidth - 80MHz @ AV = 10 • Current control pins • Channel separation - 80dB @ 500kHz - 75dB @ 1MHz - 60dB @ 4MHz • Pb-free plus anneal available (RoHS compliant) Applications • VDSL2 20dBm • ADSL2++ Get Full Datasheet Pinouts 20 VOUTA 21 VS+ 22 VS- 24 C1AB 24 VS+ VS- 1 23 C0AB ISL1539 (24 LD QFN) TOP VIEW ISL1539 (24 LD HTSSOP) TOP VIEW C0AB 2 23 VOUTA C1AB 3 22 VINA- VINA+ 1 19 VINA- VINA+ 4 21 VINB- VINB+ 2 18 VINB- VINB+ 5 20 VOUTB GND 3 19 NC IADJ 4 18 NC NC 5 GND 6 IADJ 7 THERMAL PAD 17 VOUTB THERMAL PAD 16 NC/SHIELD 15 VOUTC 16 VINC- VIND+ 7 13 VIND- C1CD 10 15 VIND- C0CD 11 14 VOUTD VOUTD 12 VIND+ 9 VS+ 11 14 VINC- VS- 10 VINC+ 6 C0CD 9 17 VOUTC C1CD 8 VINC+ 8 13 VS+ VS- 12 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2006-2007. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. ISL1539 All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software 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 responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements 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 Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 2 FN7516.2 February 12, 2007