DLPS014F April 2010 – May 2018 DLPC200
PRODUCTION DATA.
When designing a PCB board for the DLPC200 the following are recommended:
Maintain signal trace corners no sharper than 45°. Adjacent signal layers should have the predominate traces routed orthogonal to each other. TI recommends that critical signals be hand routed in the following order: DDR2 Memory, DMD (LVDS signals), then DLPA200 signals.
TI does not recommend signal routing on power or ground planes.
TI does not recommend ground plane slots.
Do not allow high speed signal traces to cross over slots in adjacent power and/or ground planes.
Signal | Constraints |
---|---|
DDR2 differential clock pairs | P-to-N length <12 mils (0.31 mm)
Trace width: 30 mil (0.76 mm) |
DDR2 data | Length within ±150 mils (3.81 mm) relative to DDR2 differential clock
Maximum termination signal recommended trace length <0.5 inch (12.7 mm) |
LVDS (DMD_DAT_xnn,
DMD_DCKL_xn, and DMD_SCTRL_xn) |
P-to-N data, clock, and SCTRL: <10 mils (0.25 mm); Pair-to-pair <10 mils (0.25 mm); Bundle-to-bundle <2000 mils (50 mm, for example DMD_DAT_Ann to DMD_DAT_Bnn)
Trace width: 4 mil (0.1 mm) Trace spacing: In ball field – 4 mil (0.11 mm); PCB etch – 14 mil (0.36 mm) Maximum recommended trace length <6 inches (150 mm) |
Signal Name | Minimum Trace Width | Minimum Trace Spacing | Layout Requirements |
---|---|---|---|
GND | Maximize | 5 mil (0.13 mm) | Maximize trace width to connecting pin as a minimum |
P3P3V | 400 mil (10.2 mm) | 10 mil (0.25 mm) | Create mini plane and connect to devices as necessary with multiple vias |
P5V, P2P5V, P1P8V, P1P5V, P1P2V | 50 mil (1.3 mm) | 10 mil (0.25 mm) | Create mini planes and connect to devices as necessary with multiple vias |
P5V, P3P3V, P2P5V, P1P8V, P1P5V, P1P2V | 30 mil (0.76 mm) | 10 mil (0.25 mm) | Stub width to connecting IC pins; maximize width when possible |
VREF_Bn | 200 mil (5.1 mm) | 30 mil (0.76 mm) | Stub width to connecting IC pins; maximize width when possible |