Datasheet

DS1023
7 of 16
DELAY LINE DETAIL (CONCEPTUAL) - DS1023-25, DS1023-50, DS1023-100
Figure 7
PART NUMBER TABLE Table 1
DELAYS RANGES AND TOLERANCE (all times measured in ns)
PART
NUMBER
STEP
SIZE
MAX. DELAY TIME (1)/
MAX. OUTPUT PULSE
WIDTH (2)
MAXIMUM
DEVIATION (3)
MAXIMUM
I/P FREQ
MINIMUM I/P
PULSE
WIDTH
DS1023-25 0.25 63.75
±1
25 MHz 20
DS1023-50 0.50 127.5
±2
25 MHz 20
DS1023-100 1.0 255
±4
25 MHz 20
DS1023-200 2.0 510
±8
25 MHz 20
DS1023-500 5.0 1275
±20
10 MHz 50
1. In “Normal” mode (MS=0). Measured with respect to REF output. The minimum delay time is zero
(or less, by 1.5 ns typically)
2. In PWM mode (MS=1). The minimum output pulse width for reliable operation is 5 ns; programmed
values less than this may produce reduced output voltage levels or no output at all.
3. This is the deviation from a straight line drawn between the step zero value and the maximum
programmed delay time.
OSCILLATOR CONFIGURATION Table 2
PART NUMBER
STEP
SIZE (4)
MINIMUM O/P
FREQUENCY (5)
MAXIMUM O/P
FREQUENCY (5)
DS1023-25 0.5 6.6 MHz 22 MHz
DS1023-50 1.0 3.6 MHz 22 MHz
DS1023-100 2.0 1.9 MHz 22 MHz
DS1023-200 4.0 0.98 MHz 22 MHz
DS1023-500 10.0 0.4 MHz 22 MHz
4. Step size in output period (in ns).
5. Maximum output frequency depends on the actual step zero delay value, worst case values are shown
in the table. The output period is given by: 2 * t
D
where: t
D
= absolute delay value.