isppacclk5510v-01tn48i Lattice Semiconductor Corp., isppacclk5510v-01tn48i Datasheet - Page 10

• Manufacturer Part Number: isppacclk5510v-01tn48i
• Description: In-system Programmable Clock Generator With Universal Fan-out Buffer
• Manufacturer: Lattice Semiconductor Corp.

Lattice Semiconductor
Performance Characteristics – PLL
f
t
t
t
t
M
N
f
f
V
f
t
t
t
tφ
DC
t
t
PSR
1. In PLL Bypass mode (PLL_BYPASS = HIGH), output will support frequencies down to 0Hz (divider chain is a fully static design).
2. Dividers should be set so that they provide the phase detector with signals of 10MHz or greater for loop stability.
3. f
4. Variation in duty cycle expressed in ps. To obtain duty cycle percentage error (%
5. Input and outputs LVPECL mode.
6. See Figures 3-5 for output loads.
REF
CLOCKHI,
CLOCKLO
RINP,
FINP
PFD
VCO
OUT
JIT
JIT
JIT(
CO_BYPASS
L
DIV
DIV
DIV
Symbol
f
ERR
IN
OUT
(cc)
(per)
φ
)
= f
x DC
OUT
= 100 MHz, M = N = 1, V = 6, output type LVPECL.
ERR.
Reference input frequency
range
Reference input clock HIGH and
LOW times
Input rise and fall times
M-divider range
N-Divider range
Phase detector input frequency
range
VCO operating frequency
Output Divider range
Output frequency range
Output adjacent-cycle jitter
Output period jitter
Reference clock to output jitter
Static phase offset
Output duty cycle error (see
Table 3 for nominal values)
Reference clock to output delay,
PLL bypass mode
PLL Lock time
Power supply rejection, period
jitter vs. power supply noise
2
Parameter
1
4
Measured between 20% and 80%
levels
Even integer values only
Fine Skew Mode,
f
Coarse Skew Mode,
f
1000 cycle sample
10000 cycle sample
6000 cycle sample
PFD input frequency ≥ 100MHz
Output type LVDS, V
Output type LVCMOS 3.3V
f
Inputs and Outputs configured to
LVCMOS 3.3V standard
From Power-up event
From Reset event
f
VCCA = VCCD = VCCO modulated
with 100kHz sinusoidal stimulus
VCO
VCO
OUT
IN
= f
= 640MHz
> 100 MHz
= 640MHz
OUT
= 100MHz
Conditions
10
3
3
3
CCO
= 3.3V
ERR
6
) for a given output frequency (f
5
6
ispClock5500 Family Data Sheet
Min.
1.25
320
10
10
10
—
—
—
—
—
—
—
—
—
—
—
1
1
2
5
Typ.
-500
0.05
170
150
—
—
—
—
—
—
—
—
—
55
11
—
—
15
—
5
Max.
320
320
640
320
160
260
300
500
32
32
64
70
14
50
—
—
—
—
—
OUT
5
), %
ERR
ps (RMS)
ps (RMS)
ps(RMS)
mV(p-p)
ps (p-p)
Units
MHz
MHz
MHz
MHz
MHz
= 100 x
ns
ns
ps
ps
ps
ns
µs
µs