DLPS193A November 2020 – July 2022 DLP500YX
PRODUCTION DATA
The DLP500YX DMD is one device in a chipset controlled by the DLPC900 Controller. The following guidelines are targeted at designing a functioning PCB using this DLP500YX DMD chipset. The DLP500YX DMD board must be a high-speed multi-layer PCB containing high-speed digital logic utilizing dual edge (DDR) LVDS signals at 400 MHz clock rates. Figure 10-1 shows the DLP500YX signals and the recommendations needed from/to the DLPC900 Controller devices. The DLPC900 device provides the data and control to the DMD. The TPS65145 and LP38513 devices supply power to the DMD.
Note | Signal Type | Guideline |
---|---|---|
A | Differential | Prevent signal noise |
Route 100 ±10-Ω resistor | ||
Intra-pair (P-to-N) length tolerance is ±12-mils | ||
DD and SCTRL must be matched to the DCLK within ±150-mils | ||
DCLK_C must be matched to DCLK_D within ±1.25-ns | ||
DCLK_A must be matched to DCLK_B within ±1.25-ns | ||
Do not switch routing layers except at the beginning and end of trace | ||
Signal routing length must not exceed 375-mm | ||
B | Single-ended | Prevent signal noise |
Route single-ended signals 50 ±5-Ω | ||
No length match requirement | ||
C | Power | VRESET, VOFFSET, VBIAS, and VCC at the DMD must be kept within the operating limits specified in the data sheet |
Provide proper amount of decoupling capacitance for each voltage at the DMD |