Microchip MPF200TL handleiding
Handleiding
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AC Switching Characteriscs
Data Sheet
© 2024 Microchip Technology Inc. and its subsidiaries
DS00003831E - 41
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Parameter Symbol Min Typ Max Unit Condition
Allowable input duty
cycle
F
INDUTY
25 — 75 % —
Maximum input
period clock jitter
(reference and
feedback clocks)
2
F
MAXINJ
— 120 1000 ps —
PLL VCO frequency F
VCO
800 — 5000 MHz —
Loop bandwidth (Int)
3
F
BW
F
PHDET
/55 F
PHDET
/44 F
PHDET
/30 MHz —
Loop bandwidth
(FRAC)
3
F
BW
F
PHDET
/91 F
PHDET
/77 F
PHDET
/56 MHz —
Static phase oset of
the PLL outputs
4
T
SPO
— — Max (±60 ps, ±0.5
degrees)
ps —
PLL output period
jitter
10, 11
T
OUTJITTER
— — ±0.0125*output_
period
ps 1.5 MHz ≤ F
OUT
< 15 MHz
— — 135 ps F
OUT
≥ 15 MHz
— — ±67.5 ps
— — 16.67 ns 0.05MHz ≤ F
OUT
˂ 1.5MHz
— — ±8.335 ns
PLL output duty cycle
precision
T
OUTDUTY
48 — 54 % —
PLL lock time
5
T
LOCK
— — Max (6.0 μs, 625 PFD
cycles)
μs —
PLL unlock time
6
T
UNLOCK
2 — 8 PFD
cycles
—
PLL output frequency F
OUT
0.050 — 1250 MHz —
Minimum power-
down pulse width
T
MPDPW
1 — — μs —
Maximum delay in
the feedback path
7
F
MAXDFB
— — 1.5 PFD
cycles
—
Spread spectrum
modulation spread
8
Mod_Spread 0.1 — 3.1 % —
Spread spectrum
modulation
frequency
9
Mod_Freq F
PHDETF
/
(128x63)
32 F
PHDETF
/(128) KHz —
1. Minimum time for high or low pulse width.
2. Maximum jitter the PLL can tolerate without losing lock.
3. Default bandwidth setting of BW_PROP_CTRL = 01 for Integer and Fraction modes leads to the
typical estimated bandwidth. This bandwidth can be lowered by setting BW_PROP_CTRL = 00 and
can be increased if BW_PROP_CTRL = 10 and will be at the highest value if BW_PROP_CTRL = 11.
4. Maximum (±3 Sigma) phase error between any two outputs with nominally aligned phases.
5. PFD cycles is REFDIV/F
IN[I/F]
. For example, REFDIV = 1, F
INI
= 25 MHz, lock time = Max (6.0μs, 625 *
1/25 MHz) = 25μs.
6. Unlock occurs if two cycles slip within two PFD cycles.
7. Maximum propagation delay of external feedback path in Deskew mode.
8. Programmable capability for depth of down spread or center spread modulation.
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Productinformatie
| Merk | Microchip |
| Model | MPF200TL |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 18409 MB |
