As you can easily check with a PECL logic datasheet, it's not compatible to LVDS due to the different common mode range. Level translation is required.
The suggested LVDS-to.PECL interface is said to work with PECL line receivers. This isn't identical to "any PECL" input, thus I said, the common range is different. But there are probably more devices that expose PECL compatible inputs with a common mode range downto 1.2 V. You should check the specification of the respective device for clarity.