TLC2934

3.3 V 130 MHZ VCO, PHASE FREQUENCY DETECTOR

SLAS306 – NOVEMBER 2000

5

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

tr

tf

90%

10%

90%

10%

VCO OUT

Figure 1. VCO Output Voltage Waveform

50%

90%

10%

10%

50%

50%

tPHZ

tr

tf

tPLZ

VDD

GND

VDD

GND

VDD

GND

VDD

GND

VDD

GND

VDD

GND

FIN– A†

FIN– B†

PFD INHIBIT

PFD OUT

(a) OUTPUT PULLDOWN

(b) OUTPUT PULLUP

† FIN-A and FIN-B are for reference phase only, not for timing.

90%

tPZL

tPZH

GND

VOH

50%

50%

50%

VDD

VOL

(see Figure 3 and PFD Output Test Conditions Table)

Figure 2. PFD Output Voltage Waveform

S1

S2

RL

CL

Test Point

PFD OUT

DUT

VDD

PARAMETER

RL

1 k

Ω

15 pF

Open

Close

Open

Close

CL

SL

S2

tPZH

tPHZ

tr

tPZL

tPLZ

tf

PFD Output Test Conditions

Figure 3. PFD Output Test Condition