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3D7444

Part Number	3D7444
Manufacturer	Data Delay Devices
Description	MONOLITHIC QUAD 4-BIT PROGRAMMABLE DELAY LINE
Published	Jul 2, 2007
Detailed Description	3D7444 MONOLITHIC QUAD 4-BIT PROGRAMMABLE DELAY LINE (SERIES 3D7444) FEATURES • • • • • • • • • • • Four indep’t progra...
Datasheet	3D7444 PDF File

Overview

3D7444 MONOLITHIC QUAD 4-BIT PROGRAMMABLE DELAY LINE (SERIES 3D7444) FEATURES • • • • • • • • • • • Four indep’t programmable lines on a single chip All-silicon CMOS technology Low quiescent current (1mA typical) Leading- and trailing-edge accuracy Vapor phase, IR and wave solderable Auto-insertable (DIP pkg.
) Increment range: 1.
5ns through 25ns Delay tolerance: 1ns or 2% (See Table 1) Temperature stability: ±2% typical (0C-70C) Vdd stability: ±1% typical Minimum input pulse width: 10% of total delay I1 SC I2 I3 I4 SI GND 1 2 3 4 5 6 7 PACKAGES 14 13 12 11 10 9 8 VDD AL O1 SO O2 O3 O4 I1 SC I2 I3 I4 SI GND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VDD AL O1 SO O2 O3 O4 DIP-14 3D7444-xx SOIC-14 3D7444D-xx For mechanical dimensions, click here.
For package marking details, click here.
FUNCTIONAL DESCRIPTION The 3D7444 device is a small, versatile, quad 4-bit programmable monolithic delay line.
Delay values, programmed via the serial interface, can be independently varied over 15 equal steps.
The step size (in ns) is determined by the device dash number.
Each input is reproduced at the corresponding output without inversion, shifted in time as per user selection.
For each line, the delay time is given by: TDn = T0 + An * TI PIN DESCRIPTIONS I1-I4 O1-O4 AL SC SI SO VDD GND Signal Inputs Signal Outputs Address Latch In Serial Clock In Serial Data In Serial Data Out 5.
0V Ground www.
DataSheet4U.
com where T0 is the inherent delay, An is the delay address of the n-th line and TI is the delay increment (dash number).
The desired addresses are shifted into the device via the SC and SI inputs, and the addresses are latched using the AL input.
The serial interface can also be used to enable/disable each delay line.
The 3D7444 operates at 5 volts and has a typical T0 of 6ns.
The 3D7444 is CMOS-compatible, capable of sourcing or sinking 4mA loads, and features both rising- and falling-edge accuracy.
The device is offered in a standard 14-pin auto-insertable DIP and a space saving ...

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