MONOLITHIC QUAD 4-BIT PROGRAMMABLE DELAY LINE
3D7424
MONOLITHIC QUAD 4-BIT PROGRAMMABLE DELAY LINE (SERIES 3D7424)
FEATURES
• • • • • • • • • • • Four indep’t progra...
Description
3D7424
MONOLITHIC QUAD 4-BIT PROGRAMMABLE DELAY LINE (SERIES 3D7424)
FEATURES
Four indep’t programmable lines on a single chip All-silicon CMOS technology Low quiescent current (5mA typical) Leading- and trailing-edge accuracy Vapor phase, IR and wave solderable Increment range: 0.75ns through 400ns Delay tolerance: 3% or 2ns (see Table 1) Line-to-line matching: 1% or 1ns typical Temperature stability: ±1.5% typical (-40C to 85C) Vdd stability: ±0.5% typical (4.75V to 5.25V) 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 3D7424-xx
SOIC-14 3D7424D-xx
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FUNCTIONAL DESCRIPTION
The 3D7424 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
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where T0 is the inherent delay, An is the d...
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