CDCVF111

1:9 DIFFERENTIAL LVPECL CLOCK DRIVER

SCAS670B – SEPTEMBER 2001 – REVISED JUNE 2002

4

POST OFFICE BOX 655303

ESD information

ESD MODELS

LIMIT

Human Body Model (HBM)

2.0 kV

Machine Model (MM)

200 V

Charge Device Model (CDM)

2.0 kV

thermal information

CDCVF111 28 PIN PLCC

THERMAL AIR FLOW (CFM)

UNIT

CDCVF111 28-PIN PLCC

0

150

250

500

UNIT

R

θJA

High K

48

44

42

39

°C/W

R

θJA

Low K

70

58

52

46

°C/W

R

θJC

High K

22

°C/W

R

θJC

Low K

28

°C/W

PARAMETER MEASUREMENT INFORMATION

tPLH

VCC – 0.9 V

VCC – 1.7 V

CLKIN

VOH

VOL

Y

Outputs

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

tPHL

tr

tf

VOH

VOL

Y, Y

Outputs

80%

20%

80%

20%

VOLTAGE WAVEFORMS

RISE AND FALL TIMES

CLKIN

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

≤ 45 MHz, ZO = 50 Ω, tr ≤ 1 ns, tf ≤ 1 ns.

B. For additonal signal interface, see the Interfacing Between LVPECL, LVDS, and CML application note, Literature Number

SCAA056.

LOAD CIRCUIT (See Note B)

VCC = 2 V

VEE = –1.3 V

LVPECL

Driver

ZO = 50 Ω

ZO = 50 Ω

Yn

Yn

50

Ω

50

Ω

Oscilloscope

Figure 1. Load Circuit and Voltage Waveforms