ADSL Driver Dual 24-Pin VQFN EP T/R

The THS6214 is a dual-port, current-feedback architecture, differential line driver amplifier system ideal for xDSL systems. The device is targeted for use in VDSL2 (very-high-bit-rate digital subscriber line 2) line driver systems that enable greater than +14.5dBm line power, supporting the G.993.2 VDSL2 17a profile. It is also fast enough to support central-office transmissions of +14.5dBm line power up to 30MHz. The unique architecture of the THS6214 uses minimal quiescent current while still achieving very high linearity. Differential distortion, under full bias conditions, is -93dBc at 1MHz and reduces to only -73dBc at 10MHz. Fixed multiple bias settings of the amplifiers allow for enhanced power savings for line lengths where the full performance of the amplifier is not required. To allow for even more flexibility and power savings, an adjustable current pin (IADJ) is available to further lower the bias currents.The wide output swing of 43.2VPP (100O differential load) with ±12V power supplies, coupled with over 416mA current drive (25O load), allows for wide dynamic headroom, keeping distortion minimal. The THS6214 is available in a QFN-24 or a TSSOP-24 PowerPAD package.

Low Power Consumption:

• 21mA/Port (Full Bias Mode)
• 16.2mA/Port (Mid Bias Mode)
• 11.2mA/Port (Low Bias Mode)
• Low-Power Shutdown Mode
• I_ADJ Pin for Variable Bias

Low Noise:

• 2.7nV/vHz Voltage Noise
• 17pA/vHz Inverting Current Noise
• 1.2pA/vHz Noninverting Current Noise

Low MTPR Distortion:

• 70dB with +20.5dBm G.993.2—Profile 8b

-93dBc HD3 (1MHz, 100O Differential)

High Output Current: > 416mA (25O Load)

Wide Output Swing: 43.2V_PP (±12V, 100O Differential Load)

Wide Bandwidth: 150MHz (G_DIFF = 10V/V)

PSRR: 50dB at 1MHz for Good Isolation

Wide Power-Supply Range: 10V to 28V

APPLICATIONS

• Ideal For VDSL2 Systems
• Backwards-Compatible with ADSL/ADSL2+/ADSL2++ Systems