TLC2933A Datasheet, PDF (10/19 Pages) Texas Instruments – HIGH PERFORMANCE PHASE LOCKED LOOP

TLC2933A
HIGH PERFORMANCE PHASE LOCKED LOOP
SLES149 − OCTOBER 2005
PARAMETER MEASUREMENT INFORMATION
90%
90%
VCO OUT ^10%
tr
10%
tf
Figure 3. VCO Output Voltage Waveform
VDD
FIN−A
50%
GND
VDD
FIN−B
GND
VDD
PFD INHIBIT
50%
50%
GND
VDD
PFD OUT
GND
90%
50%
10%
t_PZH
tr
50%
t_PHZ
90%
50%
10%
t_PZL
tf
PARAMETER
tPZH
tPHZ
tr
tPZL
tPLZ
tf
Figure 4. PFD Output Voltage Waveform
Table 4. PFD Output Test Conditions
RL
CL
S1
1 kΩ
15 pF
OPEN
CLOSE
50%
50%
t_PLZ
S2
CLOSE
OPEN
10
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