The DMD connects to a PCB or a flex circuit using an interposer. For additional layout guidelines regarding length matching, and impedance, see the DLPC34x6 controller data sheet. For a detailed layout example refer to the layout design files. Some layout guidelines for routing to the DMD are:
- Match lengths for the LS_WDATA and LS_CLK signals.
- Minimize vias, layer changes, and turns for the HS bus signals. Refer to Figure 8-1.
- Minimum of two 100nF (25V) capacitors—one close to VBIAS pin. Capacitors C4 and C8 in Figure 8-1.
- Minimum of two 100nF (25V) capacitors—one close to each VRST pin. Capacitors C3 and C7 in Figure 8-1.
- Minimum of two 220nF (25V) capacitors—one close to each VOFS pin. Capacitors C5 and C6 in Figure 8-1.
- Minimum of four 100nF (6.3V) capacitors—two close to each side of the DMD. Capacitors C1, C2, C9 and C10 in Figure 8-1.