SBOS877A April 2018 – September 2018 THS6301
PRODUCTION DATA.
The THS6301 features nine different device operational modes, as listed in Table 1, to accommodate the G.Fast, xDSL, line termination, and power-down scenarios. The device is controlled by a 2-pin parallel interface that uses three-level logic to control the device state. The G.Fast and xDSL modes change the quiescent current of the device to meet signal performance requirements and maintain the lowest power possible, which allows for legacy DSL compatibility with maximum power efficiency. The two line-termination modes maintain a low impedance at the output and place the device in a low-power state. The line-termination modes allow for the muxing of multiple devices to one output line by putting the non-driving devices in a state that does not add distortion to the line. A power-down mode is also included to digitally shut down the device for the highest level of power savings. Table 1 lists the device power modes and the typical quiescent currents for each mode.
MODE DESCRIPTION | BIAS CONTROL PINS | RECOMMENDED DSL PROFILE | TYPICAL QUIESCENT CURRENT (RIADJ = 75 KΩ | SSBW (VOUT = 1.7 VPP) | |
---|---|---|---|---|---|
B1 | B2 | ||||
Power down | Z | Z | Power down | 1.9 mA | N/A |
Low-power termination | Z | 0 | Line termination (low power) | 10.2 mA | N/A |
High-power termination | 0 | 0 | Line termination (high power) | 16 mA | N/A |
Drive mode 1 | 0 | Z | ADSL2+ | 15.9 mA | 564 MHz |
Drive mode 2 | Z | 1 | VDSL (low power) | 20.1 mA | 659 MHz |
Drive mode 3 | 1 | 1 | G.Fast (low power) and VDSL (mid power) | 27.2 mA | 755 MHz |
Drive mode 4 | 1 | Z | VDSL (high power) | 29.8 mA | 605 MHz |
Drive mode 5 | 0 | 1 | G.Fast (mid power) | 38.9 mA | 864 MHz |
Drive mode 6 | 1 | 0 | G.Fast (high power) | 45.3 mA | 814 MHz |