SNLS545E March 2017 – July 2022 LMH1297
PRODUCTION DATA
The OUT0_SEL and SDI_OUT_SEL pins work in conjunction with the EQ/CD_SEL pin to select the LMH1297 data-path routes. Table 8-3 shows all possible signal path combinations and typical use cases for each configuration.
EQ/CD_SEL (MODE) | OUT0_SEL | SDI_OUT_SEL | INPUT | MAIN OUTPUT | LINE SIDE LOOP-THRU OUTPUT | HOST SIDE LOOP-BACK OUTPUT | TYPICAL APPLICATION |
---|---|---|---|---|---|---|---|
L (EQ mode) | X | H | SDI_IO+ | OUT0± | Adaptive cable equalizer | ||
X | L | SDI_IO+ | OUT0± | SDI_OUT± | Adaptive cable equalizer with line-side loop-through output | ||
H (CD mode) | H | H | IN0± | SDI_IO+ | Single cable driver | ||
H | L | IN0± | SDI_IO+ | SDI_OUT± | Dual cable drivers | ||
L | H | IN0± | SDI_IO+ | OUT0± | Single cable driver with host-side loop-back enabled | ||
L | L | IN0± | SDI_IO+ | SDI_OUT± | OUT0± | Dual cable drivers with host-side loop-back enabled |