Femtoclocks™ Crystal-to-3.3V LVPECL
Clock Generator
Data Sheet
NV021
G
ENERAL
D
ESCRIPTION
The NV021 is a Fibre Channel Clock Generator and a member
of the family of high performance devices from IDT. The NV021
can synthesize 98.304MHz, 100MHz, and 106.25MHz from a
24.576MHz, 25MHz, and 26.5625MHz crystals respectively.
The NV021 is packaged in a small 8-pin SOIC, making it ideal
for use in systems with limited board space.
F
EATURES
•
1 differential 3.3V LVPECL output
•
Crystal frequency range: 23.33MHz - 28.33MHz
•
Output frequencies: 98.304MHz, 100MHz. 106.25MHz
•
VCO range: 560MHz - 680MHz
•
Low RMS phase jitter
•
3.3V operating supply
•
Available in RoHS/Lead-Free compliant package
•
-30°C to 85°C ambient operating temperature
F
REQUENCY
T
ABLE
Crystal (MHz)
24.576
25
26.5625
Output Frequency (MHz)
98.304
100
106.25
B
LOCK
D
IAGRAM
P
IN
A
SSIGNMENT
V
CCA
V
EE
XTAL_OUT
XTAL_IN
1
2
3
4
8
7
6
5
V
CC
Q0
nQ0
nc
NV021
8-Lead SOIC
3.90mm x 4.90mm x 1.37mm
package body
M Package
Top View
©2016 Integrated Device Technology, Inc
1
Revision B January 26, 2016
NV021 Data Sheet
T
ABLE
1. P
IN
D
ESCRIPTIONS
Number
1
2
3,
4
5
6, 7
8
Name
V
CCA
V
EE
XTAL_OUT,
XTAL_IN
nc
nQ0, Q0
V
CC
Power
Power
Input
Unused
Output
Power
Type
Description
Analog supply pin.
Negative supply pin.
Crystal oscillator interface. XTAL_IN is the input,
XTAL_OUT is the output.
No connect.
Differential clock outputs. LVPECL interface levels.
Core supply pin.
T
ABLE
2. P
IN
C
HARACTERISTICS
Symbol
C
IN
Parameter
Input Capacitance
Test Conditions
Minimum
Typical
4
Maximum
Units
pF
©2016 Integrated Device Technology, Inc
2
Revision B January 26, 2016
NV021 Data Sheet
A
BSOLUTE
M
AXIMUM
R
ATINGS
Supply Voltage, V
CC
Inputs, V
I
Outputs, I
O
Continuous Current
Surge Current
4.6V
-0.5V to V
CC
+ 0.5V
50mA
100mA
NOTE: Stresses beyond those listed under Absolute
Maximum Ratings may cause permanent damage to the
device. These ratings are stress specifications only. Functional
operation of product at these conditions or any conditions
beyond those listed in the
DC Characteristics
or
AC Charac-
teristics
is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect product reliability.
Package Thermal Impedance,
θ
JA
8 Lead SOIC
112.7°C/W (0 lfpm)
8 Lead TSSOP
101.7°C/W (0 mps)
Storage Temperature, T
STG
-65°C to 150°C
T
ABLE
3A. P
OWER
S
UPPLY
DC C
HARACTERISTICS
,
V
CC
= V
CCA
= 3.3V±5%, T
A
= -30°C
TO
85°C
Symbol
V
CC
V
CCA
I
EE
Parameter
Core Supply Voltage
Analog Supply Voltage
Power Supply Current
Test Conditions
Minimum
3.135
3.135
Typical
3.3
3.3
Maximum
3.465
3.465
90
Units
V
V
mA
T
ABLE
3B. LVPECL DC C
HARACTERISTICS
,
V
CC
= V
CCA
= 3.3V±5%, T
A
= -30°C
TO
85°C
Symbol
V
OH
V
OL
V
SWING
Parameter
Output High Voltage; NOTE 1
Output Low Voltage; NOTE 1
Peak-to-Peak Output Voltage Swing
Test Conditions
Minimum
V
CC
- 1.4
V
CC
- 2.0
0.6
Typical
Maximum
V
CC
- 0.9
V
CC
- 1.7
1.0
Units
V
V
V
NOTE 1: Outputs terminated with 50Ω to V
CC
- 2V.
T
ABLE
4. C
RYSTAL
C
HARACTERISTICS
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitance
Drive Level
23.33
Test Conditions
Minimum
Typical
Fundamental
28.33
50
7
1
MHz
Ω
pF
mW
Maximum
Units
T
ABLE
5. AC C
HARACTERISTICS
,
V
CC
= V
CCA
= 3.3V±5%, T
A
= -30°C
TO
85°C
Symbol
F
OUT
Parameter
Output Frequency
98.304MHz;
Integration Range: 12kHz - 20MHz
100MHz;
Integration Range: 637kHz - 10MHz
106.25MHz;
Integration Range: 637kHz - 5MHz
20% to 80%
300
48
Test Conditions
Minimum
93.33
<1
<1
<1
600
52
Typical
Maximum
113.33
Units
MHz
ps
ps
ps
ps
%
tjit(Ø)
RMS Phase Jitter (Random);
NOTE 1
t
R
/ t
F
odc
Output Rise/Fall Time
Output Duty Cycle
NOTE 1: Please refer to the Phase Noise Plot.
©2016 Integrated Device Technology, Inc
3
Revision B January 26, 2016
NV021 Data Sheet
T
YPICAL
P
HASE
N
OISE AT
100MH
Z
-10
-20
-30
-40
➤
Filter
100MHz
RMS Phase Noise Jitter
637kHz to 10MHz = <2ps (typical)
0
dBc
Hz
N
OISE
P
OWER
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
100
1k
10k
Raw Phase Noise Data
➤
➤
Phase Noise Result by adding
a Filter to raw data
100k
1M
10M
100M
O
FFSET
F
REQUENCY
(H
Z
)
©2016 Integrated Device Technology, Inc
4
Revision B January 26, 2016
NV021 Data Sheet
P
ARAMETER
M
EASUREMENT
I
NFORMATION
3.3V O
UTPUT
L
OAD
AC T
EST
C
IRCUIT
RMS P
HASE
J
ITTER
O
UTPUT
D
UTY
C
YCLE
/P
ULSE
W
IDTH
/P
ERIOD
O
UTPUT
R
ISE
/F
ALL
T
IME
©2016 Integrated Device Technology, Inc
5
Revision B January 26, 2016
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