LOGIC DIAGRAM Figure 1
IN
TIME DELAY
DS1135-L
OUT
ONE OF THREE
PART NUMBER DELAY TABLE (tPLH , tPHL ) Table 1
TOLERANCE OVER
DELAY PER
INITIAL
TEMP AND VOLTAGE
OUTPUT
TOLERANCE
(Note 2)
PART NUMBER
(ns)
(Note 1)
0°C to +70°C
-40°C to +85°C
DS1135LX-10
10/10/10
±1.0ns
±2.0ns
±3.0ns
DS1135LX-12
12/12/12
±1.0ns
±2.0ns
±3.0ns
DS1135LX-15
15/15/15
±1.0ns
±2.5ns
±4.0ns
DS1135LX-20
20/20/20
±1.0ns
±2.5ns
±4.0ns
DS1135LX-25
25/25/25
±1.5ns
±3.0ns
±5.0ns
DS1135LX-30
30/30/30
±1.5ns
±3.0ns
±5.0ns
NOTES:
1. Nominal conditions are +25°C and VCC = +3.3V.
2. Voltage range of 2.7V to 3.6V.
3. Delay accuracies is for both leading and trailing edges.
4. X in Part number denotes package: U indicates µSOP, Z indicates SO.
TEST SETUP DESCRIPTION
Figure 2 illustrates the hardware configuration used for measuring the timing parameters of the DS1135L.
The input waveform is produced by a precision pulse generator under software control. Time delays are
measured by a time interval counter (20 ps resolution) connected to the output. The DS1135L output taps
are selected and connected to the interval counter by a VHF switch control unit. All measurements are
fully automated with each instrument controlled by the computer over an IEEE 488 bus.
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