TLC2933A_16 Datasheet, PDF (9/24 Pages) Texas Instruments – HIGH PERFORMANCE PHASE LOCKED LOOP

TLC2933A
HIGH PERFORMANCE PHASE LOCKED LOOP
SLES149 − OCTOBER 2005
operation characteristics, V_DD = 5 V, T_A = 25°C (unless otherwise noted)
VCO section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
fOSC
fSTB
tr
tf
fDUTY
α (fOSC)
Operation oscillation frequency
Time to stable oscillation (see Note 20)
Rise time
Fall time
Duty cycle at VCO OUT
Temperature coefficient of oscillation
frequency
RBIAS = 3.3 kΩ, VCO IN = 1/2 VDD
70
99
CL = 15 pF
CL = 15 pF
RBIAS = 3.3 kΩ, VCO IN = 1/2 VDD
VCO IN = 1/2 VDD, TA = –20°C to
75°C
45%
5.4
5
50%
–0.309
130
10
10
10
55%
MHz
us
ns
ns
%/°C
kSVS(fOS Supply voltage coefficient of oscillation
C)
frequency
VCO IN = 1/2 VDD, VDD = 4.75 V
to 5.25 V
0.001
%/mV
Jitter absolute (see Note 21)
PLL jitter, N = 128
140
ps
NOTES: 20. The time period to the stable VCO oscillation frequency after the VCO INHIBIT terminal is changed to a low level.
21. Jitter performance is highly dependent on circuit layout and external device characteristics. The jitter specification was made with
a carefully deigned PCB with no device socket.
PFD section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
fmax
tPLZ
tPHZ
tPZL
tPZH
tr
tf
Maximum operation frequency
PFD output disable time from low level
PFD output disable time from high level
PFD output enable time to low level
PFD output enable time to high level
Rise time
Fall time
CL = 15 pF
CL = 15 pF
65
20
20
4
4.3
2.1
1.3
MHz
40
ns
40
ns
20
ns
20
ns
10
ns
10
ns
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