SLLU391 November 2024 TDP142-Q1
The TDP142-Q1 EVM has 4-level inputs pins (I2C_EN, A0, and DPEQ[1:0]) that are used to control the equalization gain and place the TDP142-Q1 into different modes of operation. These 4-level inputs use a resistor divider to help set the four valid levels and provide a wider range of control settings. There are internal pullup and pulldown resistors that can combine with the external resistor connection to achieve the desired voltage level
LEVEL | SETTINGS |
---|---|
Low | Tie 1kΩ 5% to GND. |
R | Tie 20kΩ 5% to GND. |
F | Float (leave pin open) |
High | Tie 1kΩ 5% to VCC. |
All 4-level inputs are latched on rising edge of internal reset. After tcfg_hd, the internal pullup and pulldown resistors are isolated in order to save power.