4-233

CD22301

Output Pulse Fall Time

4, 8

9, 10

-

-

40

ns

Output Pulse Width

4, 8

9, 10

290

324

340

ns

Pulse Width Differential

∆t

W

4, 8

9, 10

-10

0

10

ns

Clock Drive Current

-2-

mA

NOTES:

1. No signal input. Measure voltage between pins 7 and 8.

2. Measure clock limiter input impedance at pin 15. See Figure 5.

3. Adjust potentiometer for 0V (See Figure 5). Measure ALBO off impedances from pins 2, 3 and 4 to pin 1.

4. Increase potentiometer until voltage at pin 17 = 2V (See Figure 5). Measure ALBO on impedances from pins 2, 3 and 4 to pin 1.

5. Adjust potentiometer for

∆V = 0V (See Figure 6). Then slowly increase ∆V in the positive direction until pulses are observed at the DATA

terminal.

6. Continue increasing

∆V until the DC level at the clock terminal drops to 4V (See Figure 6).

7. Continue increasing

∆V until the ALBO terminal rises to 1V (See Figure 6).

8. Turn potentiometer in the opposite direction and measure negative threshold voltages by repeating tests outlined in notes 5, 6 and 7.

10 and 11.

10. Adjust input signal amplitude until pulses just appear in outputs. Increase input amplitude by 3dB.

Electrical Specifications

PARAMETER

SYMBOL

FIGURE

NOTE

MIN

TYP

MAX

UNITS

9

8

7

6

5

3

2

4

1

18

17

16

15

14

11

10

12

13

FF

FF

TIMING

PULSE

AMPLIFIER

LIMITER

CLOCK

CIRCUIT

SEE FIG. 2

ALBO

OUTPUT

CIRCUIT

SEE

FIG. 1

GATE

GATE

AO1

AO2

AO3

PULSE

INPUT

430

Ω

1.8K

8.2K

2.7K

470

µH

2200pF

510

Ω

82pF

0.1

µF

0.1

µF

4.53K

1.33K

150pF

6.19K

15

µH

1500pF

0.1

µF

ALBO

GND

SUBSTRATE

ALBO

BIAS

1

µF

+

PEAK

DETECTOR

CLOCK THRESHOLD

COMPARATOR

DATA THRESHOLD

COMPARATOR

17

µH

0.1

µF

600 - 800pF

120K

BIAS

LC TANK

INPUT

100

µH

PULSE

OUTPUT

PHASE

SHIFT

NETWORK

3.83K

33pF

PRE-

AMPLIFIER

130

Ω

FIGURE 1. TYPICAL 1.544MHz T1 REPEATER SYSTEM