See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

NJK | 36

Temp:

S (-40 to 105)

ECO Plan:

Green (RoHS & no Sb/Br)

DS99R421QSQX/NOPB


5-43 MHz FPD-Link LVDS (3 Data + 1 Clk) to FPD-Link II LVDS (Embedded Clk DC-Balanced) Conv

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Texas Instruments DS99R421QSQX/NOPB

The DS99R421 converts a FPD-Link input with 4 non-DC Balanced LVDS (3 LVDS Data + LVDS Clock) plus 3 over-sampled low speed control bits into a single LVDS DC-balanced serial stream with embedded clock information. This single serial stream simplifies transferring the 24-bit bus over a single differential pair of PCB traces and cable by eliminating the skew problems between the 3 parallel LVDS data inputs and LVDS clock paths. It saves system cost by narrowing 4 LVDS pairs to 1 LVDS pair that in turn reduce PCB layers, cable width, connector size, and pins.

The DS99R421 incorporates a single serialized LVDS signal on the high-speed I/O. Embedded clock LVDS provides a low power and low noise environment for reliably transferring data over a serial transmission path. By optimizing the converter output edge rate for the operating frequency range EMI is further reduced.

In addition the device features pre-emphasis to boost signals over longer distances using lossy cables. Internal DC balanced encoding is used to support AC-Coupled interconnects.

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