CDC509

3.3-V PHASE-LOCK LOOP CLOCK DRIVER

SCAS576B – JULY 1996 – REVISED JANUARY 1998

5

POST OFFICE BOX 655303

switching characteristics over recommended ranges of supply voltage and operating free-air

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 3.3 V

± 0.165 V

VCC = 3.3 V

± 0.3 V

UNIT

(INPUT)

(OUTPUT)

MIN

TYP

MAX

MIN

TYP

MAX

tphase error, reference

(see Figure 3)

66 MHz < CLKIN

↑ < 100

MHz

FBIN

↑

100...480

ps

tphase error, – jitter,

(see Note 6)

CLKIN

↑ = 100 MHz

FBIN

↑

220

480

340

ps

tsk(o)‡

Any Y or FBOUT

Any Y or FBOUT

200

ps

Jitter(pk-pk)

F(clkin > 66 MHz)

Any Y or FBOUT

–100

100

ps

Duty cycle, reference

F(clkin

≤ 66 MHz)

Any Y or FBOUT

45%

55%

yy

,

(see Figure 4)

F(clkin > 66 MHz)

Any Y or FBOUT

43%

57%

tr

Any Y or FBOUT

1.1

1.5

0.7

1.6

ns

tf

Any Y or FBOUT

0.8

1.3

0.5

1.5

ns

† This parameters are not production tested.

‡ The tsk(o) specification is only valid for equal loading of all outputs.

NOTES:

5. The specifications for parameters in this table are applicable only after any appropriate stabilization time has elapsed.

6. Phase error does not include jitter. The total phase error is 120 ps to 580 ps for the 5% VCC range.

PARAMETER MEASUREMENT INFORMATION

From Output

Under Test

LOAD CIRCUIT FOR OUTPUTS

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

tpd

50% VCC

3 V

0 V

VOH

VOL

Input

0.4 V

2 V

tr

tf

0.4 V

2 V

Output

500

W

50% VCC

30 pF

NOTES: A. CL includes probe and jig capacitance.

B. All input pulses are supplied by generators having the following characteristics: PRR

≤ 100 MHz, ZO = 50 Ω, tr ≤ 1.2 ns, tf ≤ 1.2 ns.

C. The outputs are measured one at a time with one transition per measurement.

Figure 1. Load Circuit and Voltage Waveforms