THS6226

THS6226 www.ti.com SBOS499C – JANUARY 2011 – REVISED APRIL 2011 Gated-Class H, Dual-Port VDSL2 Line Driver Check for Samples: THS6226 FEATURES 1 23 Digitally-Adjustable Quiescent Current: 7.6mA to 23.0mA 1.0mA Bias Current Step Independent Voltage Boost and Main Line Driver Disable Low-Power Line Termination Mode Full Capacitor Recharge: 3ms Low Input Voltage Noise Density: 6.3 nV/√Hz Input-Referred Voltage Noise Low MTPR Distortion: 70dB with +19.8dBm G.993.2—Profile 8b –91dBc HD3 (1MHz, 60Ω Differential) High Output Current: (383mA into 60Ω) Wide Output Swing: 40VPP (+12V, 60Ω Differential Load with a 1:1.4 Transformer) Wide Bandwidth: 125MHz Port-to-Port Separation of 90dB at 1MHz PSRR: 70dB at 1MHz for Good Isolation APPLICATIONS Ideal for All VDSL2 Profiles Backwards-Compatible with ADSL/ADSL2+/ADSL2++ Systems DESCRIPTION The THS6226 is a dual-port, class H, current-feedback architecture, differential line driver amplifier system ideal for xDSL systems. The device is targeted for use in very-high-bit-rate digital subscriber line 2 (VDSL2) line driver systems that enable native DTM signals while supporting greater than +20.5dBm line power (up to 8.5MHz) with good linearity, supporting the G.993.2 VDSL2 8b profile. It is also fast enough to support central-office transmission of +14.5dBm line power up to 30MHz. The unique architecture of the THS6226 allows quiescent current to be minimal while still achieving very high linearity. Differenti...