FUNCTIONAL DESCRIPTION

The 3D3418 Programmable 8-Bit Silicon Delay Line product family consists of 8-bit, user-programmable CMOS silicon integrated circuits. Delay values, programmed either via the serial or parallel interface, can be varied over 255 equal steps ranging from 250ps to 7.5ns inclusively. Units have a typical inherent (address 0) delay of 20ns (See Table 1). The input is reproduced at the output without inversion, shifted in time as per user selection. The 3D3418 is CMOS-compatible, and features both rising- and falling-edge accuracy.

FEATURES

• All-silicon, low-power 3.3V CMOS technology

• Vapor phase, IR and wave solderable

• Auto-insertable (DIP pkg.)

• Low ground bounce noise

• Leading- and trailing-edge accuracy

• Increment range: 0.25 through 7.5ns

• Delay tolerance: 1 (See Table 1)

• Temperature stability: ±3 typical (0C-70C)

• Vdd stability: ±1 typical (3.0V-3.6V)

• Static Idd: 1.3ma typical

• Minimum input pulse width: 10 of total delay

• Programmable via 3-wire serial or 8-bit parallel interface