The EL1529 is a dual channel differential DSL line driver for Globespan's G7566-850 CO chipsets for high performance long reach and high speed applications, including ADSL2, ADSL2+, G.Span, and G.Span+. The EL1529 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 -70dB @ 1.1MHz, while consuming typically 5mA per DSL channel of total supply current. This supply current can be set using a resistor on the IADJ pin. Two other pins (C0 & 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 EL1529 operates on ±5V to ±12V supplies and retains its bandwidth and linearity over the complete supply range. The device is supplied in the small footprint (4x5mm) 24-pin QFN package and is specified for operation over the full -40°C to +85°C temperature range.
The EL1529 is a dual‑channel differential DSL line driver designed for use with Globespan G7566‑850 CO chipsets in high‑performance ADSL2/ADSL2+ applications. It provides flat gain response, reduced harmonic distortion and noise, and operates from +5 V to +12 V supplies.
Key features include 450 mA output drive capability, 44.1 Vp‑p differential output into 100 Ω, -85 dBc THD at 1 MHz, 500 V/µs slew rate, 46 MHz bandwidth, and channel separation of 80 dB at 500 kHz. The device is supplied in a 24‑pin QFN package and is RoHS compliant.
| Output drive capability | 450 mA |
|---|---|
| Differential output voltage | 44.1 Vp‑p into 100 Ω |
| Total harmonic distortion | -85 dBc @ 1 MHz 2 Vp‑p |
| Slew rate | 500 V/µs |
| Bandwidth | 46 MHz |
| Channel separation | 80 dB @ 500 kHz, 75 dB @ 1 MHz |
| Supply voltage range | +5 V to +12 V |
| Supply current per channel | 5 mA |
| Operating temperature range | -40 °C to +85 °C |
The EL1529 can deliver up to 450 mA of output drive current.
It operates from +5 V up to +12 V supplies.
Typical total harmonic distortion is -85 dBc at 1 MHz with a 2 Vp‑p signal.
The device provides a bandwidth of 46 MHz.